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Search results “Precious metals mining extraction and processing times”
From Rock to Copper Metal
 
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This video was sponsored by LastPass http://bit.ly/2OyIQLU I collect some copper ore from an abandoned mine in California and extract the copper metal out of it through electrowinning. || In This Video || Our Camera Gear: - GH4: https://goo.gl/Kpgf9D - FS5: https://goo.gl/aPd428 - Dracast Light Panels: https://goo.gl/agbBSU - GoPro Hero 5: https://goo.gl/nDbjBk - Karma Drone: https://goo.gl/F16GWj || SUBSCRIBE || YouTube Channel: http://bit.ly/1OmesgS || SUPPORT || Patreon - https://www.patreon.com/htme Spreadshirt - https://shop.spreadshirt.com/HTME/ Special Thanks to our Patrons at $15 per month or higher: Sandy Riis, Stian Andreassen, Daniel Laux, Winfield Jones, Liz Roth, Antonio Rios-Ochoa, Jenny Wolf-Matte, Quintin, Tim Reiche, Dylan Rich, Jason Lewis, Susan M. George, Lana Sinapayen, Stephen C Strausbaugh, Meinhard Absalon, Jason Kaczmarsky, Avinash Rajaraman, Andrew Nichols, Patrick Davis, Tyler Greeson, Remi_Scarlet, Skylar MacDonald, Steven Ingles, Brett Moran || SOCIAL || Facebook: http://ow.ly/X4rJC Twitter: http://ow.ly/X4rS3 (@HTMeverything) Instagram: http://ow.ly/X4rXs || SERIES || Sandwich - http://bit.ly/1ZVGNRn Suit - http://bit.ly/1NsQri8 Bottle - http://bit.ly/1QlTU6C Thanksgiving Dinner - http://bit.ly/1UjLa1R Root Beer Float - http://bit.ly/1OGfphU Book - http://bit.ly/1SF23Gx Chocolate Bar - http://bit.ly/2085HIs Coffee - http://bit.ly/2jllv0I Eyeglasses - http://bit.ly/2jlispn Microscope and Telescope: http://bit.ly/2nQCRn7 How To Brew Everything: http://bit.ly/2kJb47E Meet The Makers - http://bit.ly/23ldFlS || ABOUT || Today, getting what you need is as easy as a trip to the store. From food to clothing, energy, medicine, and so much more, Andy George will discover what it takes to make everything from scratch. His mission is to understand the complex processes of manufacturing that is often taken for granted and do it all himself. Each week he’s traveling the world to bypass the modern supply chain in order to harvest raw materials straight from the source. Along the way, he’s answering the questions you never thought to ask. Music by the talented Taylor Lewin http://taylorlewin.com
Views: 1370666 How To Make Everything
The Secret World Of Gold | Gold Mining - Geographic History
 
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The Secret World Of Gold | Gold Mining - Geographic History. It is impossible to know the exact date that humans first began to mine gold, but some of the oldest known gold artifacts were found in the Varna Necropolis in Bulgaria. The graves of the necropolis were built between 4700 and 4200 BC, indicating that gold mining could be at least 7000 years old. A group of German and Georgian archaeologists claims the Sakdrisi site in southern Georgia, dating to the 3rd or 4th millennium BC, may be the world's oldest known gold mine. Read More: https://en.wikipedia.org/wiki/Gold_mining
Views: 68539 Geographic History
Cyanidation carbon in pulp gold extraction process
 
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Cyanidation machine supply please contact email: [email protected]
Views: 12780 Rocky Chen
Complete gold recovery processing line for gold ore
 
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We had a customer send us some very high grade gold quartz ore which we recovered 1.310 troy ounces from only 300 lbs! We ran the quartz through our 1/2-1 ton per hour complete turnkey processor comprised of out jaw crusher, hammer mill, and shaker table modules. The system did a good job of crushing and pulverizing the ore, but the shaker table did a remarkable job of recovering lots of gold that was smaller than 325 mesh. For more information please call or email: Phone: 360-595-4445 Email: [email protected] Website: http://www.MBMMLLC.com Facebook: https://www.facebook.com/MBMMLLC
Views: 95625 mbmmllc
Ancient gold smelting rare today. extract recovery process of refining gold to remove any impurities
 
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►► http://www.goldextractionprocess.com Smelting of rare antique gold. The process of refining gold to remove any impurities that may be found intermixed with the noble metal is an ancient practice that has long been employed by diverse cultures. One of the earliest gold refining equipments employed by ancient metallurgists was the blast furnace – by then a rudimentary structure built with clay, stone, or roughly hewn rocks which were fed with wood or an assortment of biofuels derived from the dried fecal matter of animals. The blast furnace was used in tandem with the crucible, one of the oldest and perhaps still widely used metallurgical instruments to this day. With the methods of gold refining being perfected through the decades, even rustic objects such as clay pots and later on, cast iron equipment were employed in the quest for purer and finer examples of gold. Ancient gold smelting rare today. extract recovery process of refining gold to remove any impurities Archimedes Channel Update video clip. Gold Recycle Finding gold Electronic Waste hidden. extract gold process, gold recovery process, refining process of gold video. Subscribe to this ►► https://goo.gl/93XuWY ✔️ THANK YOU ✔️ #GoldSmelting #RefiningGold #AncientGold
Views: 1291102 Archimedes Channel
How Gold Mining Works
 
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Ever wonder how people mined for gold? Have no fear! You can use a pan, a large drill, and even explosives! Anthony did some digging and found out many of the methods that people get that rare substance out of the ground and into your wallet! Don't miss Discovery's epic three-night event! Klondike premieres Monday, January 20th at 9|8c on Discovery Read More: Modern Gold Mining http://money.howstuffworks.com/30924-modern-gold-mining-video.htm "With the price of gold at all time highs, a familiar fever is sweeping Alaska." Gold Price Ounce http://www.goldpriceoz.com/ "Current gold prices per ounce and gold prices history." Improvements in Stope Drilling and Blasting For Deep Gold Mines http://www.saimm.co.za/Journal/v075n06p139.pdf "The rate of face advance in the gold mines is between 3 and 10 m a month, with a median value of about 5 m a month; it follows that faces are blasted less frequently than is planned." Gold Mining - Methods http://en.wikipedia.org/wiki/Gold_mining#Methods "Placer mining is the technique by which gold has accumulated in a placer deposit is extracted." How Does Gold Mining Work? http://www.wisegeek.com/how-does-gold-mining-work.htm "Gold mining can use several different techniques, depending on the situation involved and the type of mining being done." What is the Role of Cyanide in Mining? http://www.miningfacts.org/environment/what-is-the-role-of-cyanide-in-mining/ "Cyanide is a naturally occurring chemical that is found in low concentrations throughout nature including in fruits, nuts, plants, and insects." Gold Fun Facts http://www.amnh.org/exhibitions/past-exhibitions/gold/eureka/gold-fun-facts "It has been estimated that, worldwide, the total amount of gold ever mined is 152,000 metric tons, only enough to fill 60 tractor trailers." Watch More: 5 Surprising Uses for Gold http://www.youtube.com/watch?v=MnsJEEEgbvY TestTube Wild Card http://testtube.com/dnews/dnews-437-pets-make-us-healthier?utm_campaign=DNWC&utm_medium=DNews&utm_source=YT The Truth About Diamonds http://www.youtube.com/watch?v=mjUCAMFVjaY ____________________ DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos twice daily. Watch More DNews on TestTube http://testtube.com/dnews Subscribe now! http://www.youtube.com/subscription_center?add_user=dnewschannel DNews on Twitter http://twitter.com/dnews Anthony Carboni on Twitter http://twitter.com/acarboni Laci Green on Twitter http://twitter.com/gogreen18 Trace Dominguez on Twitter http://twitter.com/trace501 DNews on Facebook http://facebook.com/dnews DNews on Google+ http://gplus.to/dnews Discovery News http://discoverynews.com
Views: 278340 Seeker
MBMM Euro Trip Part 1: Processing PCB Boards for Copper and Precious Metal Recovery
 
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Our the first stop on our whirlwind tour of Eastern Europe visiting MBMM clients and learning how they are using our turn-key printed circuit board processor. They are reporting a 99% recovery rate of all the metals by using the printed circuit board processor. For more info please email or call: Email: [email protected] Phone: 360-595-4445 Website: http://www.mbmmllc.com/ Facebook: https://www.facebook.com/MBMMLLC Instagram: https://www.instagram.com/mbmmllc/ Twitter: https://twitter.com/MBMMLLC
Views: 10795 mbmmllc
World's Deepest Mine - Gold Alchemy
 
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South Africa's TauTona mine, real life alchemy, and Halicephalobus Mephisto. Footage from the 2012 documentary, "Down to the Earth's Core". We have travelled into space and looked deep into the universe's depths, but the world beneath our feet remains unexplored and unseen. Now, that's about to change. For the first time in one epic unbroken shot, we embark on an impossible mission - using spectacular computer generated imagery to smash through three thousand miles of solid rock, and venture from our world into the underworld and on to the core of the Earth itself. It's a journey fraught with danger. One thousand feet down we find ourselves inside one of the planet's most volatile places - the San Andreas Fault. Caught between two huge rock slabs, we watch as stress builds and then releases. It unleashes an earthquake and blasts us on towards rivers of molten rock, explosive volcanoes, tears in the Earth's crust and giant tornadoes of liquid metal. But for every danger, there are wonders beyond imagination. Four hundred feet below the surface, a three hundred million year old fossilized forest, with every leaf and every piece of bark perfectly preserved. At one thousand feet down we enter a cave of giant crystals, glistening in deadly 122 degree heat. More than two miles underground we find buried treasure - gold and gems. Deeper still there are valuable resources - salt, oil, coal and iron. And over one hundred miles down we see the sparkling beauty of diamonds. As we descend we piece together our planet's extraordinary story. We rewind time to discover how prehistoric forests became modern-day fuel. 1700 feet down a layer of rock reveals the extraordinary story of the dinosaurs' cataclysmic death. We watch stalactites form and gold grow before our eyes. The deeper we travel into the underworld the more we understand our world above the surface. A bigger picture takes shape - a cycle of destruction and creation, driven by the core that sustains our dynamic planet and makes the Earth the only planet with life in a seemingly lifeless universe. Until, finally, three thousand miles down, we reach the core. Inside it lie the secrets of life as we know it - the magnetic force field that protects life on Earth from the sun's deadly rays, the ancient heat source that keeps our planet alive. Down to the Earth's Core brings the latest science together with breathtaking computer generated imagery. The result is an unmissable journey into an extraordinary world - full of dangers, wonders and secrets. And it's all down there, beneath our feet, right now waiting to be discovered.
Views: 738505 Naked Science
Rock to Iron
 
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I extract metallic iron from the ground using some chemistry and a new induction heater. At some point I'll get around to turning the pig iron into steel and making something from it. More on the generator that My dad rebuilt: https://www.youtube.com/watch?v=QGL6hp8DSVg Help me buy new crucibles by donating here: https://www.patreon.com/CodysLab
Views: 2381386 Cody'sLab
Urban Mining - Gold in our trash - VPRO documentary - 2015
 
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Our waste is worth money. Recovering it has started up a new global industry worth billions. It is called Urban Mining and it appears to be the solution for many of our environmental problems and our energy needs. And it is hot. A ton of broken mobile phones, computers or other electronic waste contains sixty times the amount of gold a ton of gold ore has. Moreover, it is easier to get at. It is estimated that 30 to 40 percent of total world demand for rare metals can be covered by urban mining and this is only the beginning. Urban Mining has a different, almost hilarious consequence: for years we have dumped our electronic waste in developing countries, with our eyes closed. There, it was to be recycled. But in Africa only one quarter of the gold, platinum and coltan is recovered whereas the newest technology in Belgium recovers almost 99 percent. So somewhere there’s a profit to be made. The NGO ‘Closing the Loop’ is buying up dead mobile phones and computer parts that we have dumped in developing countries making our waste a desirable sales item over there. Originally broadcasted by VPRO in 2015. © VPRO Backlight March 2015 On VPRO broadcast you will find nonfiction videos with English subtitles, French subtitles and Spanish subtitles, such as documentaries, short interviews and documentary series. VPRO Documentary publishes one new subtitled documentary about current affairs, finance, sustainability, climate change or politics every week. We research subjects like politics, world economy, society and science with experts and try to grasp the essence of prominent trends and developments. Subscribe to our channel for great, subtitled, recent documentaries. Visit additional youtube channels bij VPRO broadcast: VPRO Broadcast, all international VPRO programs: https://www.youtube.com/VPRObroadcast VPRO DOK, German only documentaries: https://www.youtube.com/channel/UCBi0VEPANmiT5zOoGvCi8Sg VPRO Metropolis, remarkable stories from all over the world: https://www.youtube.com/user/VPROmetropolis VPRO World Stories, the travel series of VPRO: https://www.youtube.com/VPROworldstories VPRO Extra, additional footage and one off's: https://www.youtube.com/channel/UCTLrhK07g6LP-JtT0VVE56A www.VPRObroadcast.com Credits: Director: Frank Wiering Research: Olaf Oudheusden Producer: Jenny Borger Editors: Marije Meerman, Doke Romeijn English, French and Spanish subtitles: Ericsson. French and Spanish subtitles are co-funded by European Union.
Views: 111269 vpro documentary
Tanzania AIMS 500Kg and 1000kg /batch Gold Elution Plant,Xinhai
 
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Tanzania AIMS Gold elution plant is located in Mwanza, adopted “Desorption Electrowinning System” with the features of Cyanide-Free, High-Efficiency, Low-Consumption, High-Speed, Auto-Control, High-Security,etc. Cyanide-free: only NaOH is added, the cost be cut down and the environment will be protected. We can supply the cathode materials according to client’s request; the grade of gold mud is higher than that of ordinary with no need of anti-electro-winning; and it’s easy to extract gold mud and save smelting cost. Efficient: The barren carbon grade can decrease by 3~4 times than other ordinary Desorption Electrolysis System, which is good for stabilizing the grade of discharge solution in the process of carbon absorption to enhance the absorption rate, meanwhile, reducing gold lost in cyaniding tailings powder carbon and increasing actual recovery of the cyanidation. High-speed: This system can achieve all desorption and electrowinning tasks within 12-14 hours under the condition of 150-degree heat and 0.5MPa pressure, and it’s 3 times shorter than the conventional working time. Therefore, its processing capacity is 2-3 times higher than the conventional Gold Elution Plant. Low consumption: the electro-winning temperature is the same as that of desorption, so need of heat changing equipment and the good heat-preservation result. The power consumption is 1/4~1/2 of that of the ordinary Desorption system. Auto-controlling: Liquid level buffering gear and temperature controlling system are installed to keep the system temperature and liquid level at the pre-set value. Safety: Triple security measures including Desorption Electrolysis System intellectualization, pressure release gear and safety valve are taken to ensure the system safety. Optimized solution for your mine! http://www.xinhaimining.com/en/product_11_44.html?youtube-visits-congwn Website: http://www.xinhaimining.com?youtube-visits-congwn Facebook: https://www.facebook.com/xinhaimineral/ E-mail:xinhaicongwenna[email protected] whatsapp: https://wa.me/8615373366101
Views: 6808 Xinhai Mining
Metal Refining & Recovery, Episode 21: Separate Gold From Sand With Heavy Liquid
 
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I put one of my heavy liquids to work. Making the liquid: https://www.youtube.com/watch?v=gwJyzsSjJrE Help me make videos by donating here: https://www.patreon.com/CodysLab Follow me on Facebook: https://www.facebook.com/codydonreeder SubReddit: https://www.reddit.com/r/codyslab/
Views: 289042 Cody'sLab
Ultimate, Chemical Free, Gold Ore Processing Plant. Quartz to Gold Buttons Made Easy!
 
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This is a video showcasing our 1 ton per hour complete, chemical free, gold ore gravity processing plant. This system is specifically designed for the small to medium scale miner. It is ideal for high grade gold properties trying to prove up the claims, start production to get some cash flow, or for remote locations or developing countries. With a small foot print, no chemicals or mercury, and all run by a small 3 phase generator this plant can be set up any where on the plant and start producing gold right away. The entire system is all mechanical so maintenance and operation are made easy, the wear parts are easily replaceable and we keep them in stock for quick shipping and minimal shutdown time. At the end of the video we show the smelting process for taking the high grade gold concentrates and turning them into a salable gold product that any gold refiner would purchase at a very high percentage of the gold value. This is a game changer for the small scale miner and we are excited to show the whole system producing gold from start to finish! For more info please email or call: Email: [email protected] Phone: 360-595-4445 Website: http://www.mbmmllc.com/ Facebook: https://www.facebook.com/MBMMLLC Instagram: https://www.instagram.com/mbmmllc/ Twitter: https://twitter.com/MBMMLLC
Views: 5859 mbmmllc
Silver Mining | The Search for the Gleaming Metal | World Documentary Films
 
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Silver Mining | The Search for Gleaming Metal | World Documentary Films Silver mining is the resource extraction of silver by mining. Silver is found in native . Silver Mining | The Search for Gleaming Metal | World Documentary Films Silver mining is the resource extraction of silver by mining. Silver is found in native . The collapse is coming and it cannot be stopped, says Rob Kirby from Kirby Analytics.com. Rob pulls no punches in this one as we talk about the dismal state of . The collapse is coming and it cannot be stopped, says Rob Kirby from Kirby Analytics.com. Rob pulls no punches in this one as we talk about the dismal state of .
Views: 36650 HD Documentary Films
URBAN MINING! Recovering gold, copper, precious metals from PCB's without chemicals
 
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We are excited to post this video and show you all our progress on processing printed circuit boards (PCB's) for gold, copper and other metals with our hammer mill and shaker table. We have the ability to take whole boards, crush them, and run them on our shaker table. We are still in the experimental stage but we have high hopes to have a complete system ready to sell soon. I should clarify that we can't recover all the gold from the boards, but at the end of the video we do have free metallic gold in the gold pan. Our goal is to take whole boards and concentrate out the valuables (metals) from the non-values (fiberglass, plastic, etc). The free gold can easily be removed, melted, and sold directly to a gold buyer, leaving the concentrates, which are much more valuable that the boards themselves. The remaining gold is plated onto other metals. This cannot be mechanically separated, but using the hammer mill and shaker table it can be concentrated into a salable product. The #2 and #3 hole outputs can be sold to a refiner and let them deal with all the chemicals and refining process. For most people its too complicated, dangerous, expensive, etc. to separate out the different metals in the concentrates. As a side note the free gold per pound recovered from the ~20 pounds of boards equates to 1 troy ounce per ton of boards. This would be considered very high grade gold ore for any miner. The PCB's also have loads of copper, tin, lead, plated gold, etc that is added value on top of that 1 oz/ton free gold recovered. Stay tuned and please email or call if you are interested in any of our equipment. For more info call or email: Phone: 360-595-4445 Email: [email protected] Website: http://www.MBMMLLC.com Facebook: https://www.facebook.com/MBMMLLC
Views: 189152 mbmmllc
Mining activities at small scale mines
 
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Extraction of Gold at small scale mines in Tanzania.
Views: 4067 Jman p
Mining
 
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019 - Mining In this video Paul Andersen explains how mining is used to extract valuable minerals from the Earth's crust. Surface and subsurface mining are used to extract ore which is then processed. A discussion of ecosystem impacts and legislation is also included. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Intro Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License Outro Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: Cateb, M. (2010). Português: Cobre e latão para soldas. Lingote de prata 950 e chapa de prata. Liga para ser adicionada à prata, com cobre e germânio. Grânulos de prata fina. Foto : Mauro Cateb, joalheiro brasileiro. Retrieved from https://commons.wikimedia.org/wiki/File:Metals_for_jewellery.jpg English: Anthracite coal. ([object HTMLTableCellElement]). Retrieved from https://commons.wikimedia.org/wiki/File:Coal_anthracite.jpg File:MKingHubbert.jpg. (2011, September 13). In Wikipedia, the free encyclopedia. Retrieved from https://en.wikipedia.org/w/index.php?title=File:MKingHubbert.jpg&oldid=450215564 Jones, N. (2007). English: Sand and gravel strata on the southern edge of Coxford Wood The sand and gravel quarry goes right up to the edge of wood. Retrieved from https://commons.wikimedia.org/wiki/File:Sand_and_gravel_strata_on_the_southern_edge_of_Coxford_Wood_-_geograph.org.uk_-_610732.jpg Jyi1693. (2006). English: Seawater photographed from aboard the MV Virgo out of Singapore, 2006. Retrieved from https://commons.wikimedia.org/wiki/File:Sea_water_Virgo.jpg KVDP. (2009). English: A schematic showing the locations of certain ores in the world. Retrieved from https://commons.wikimedia.org/wiki/File:Simplified_world_mining_map_1.png printer, -G. F. Nesbitt & Co. (1850). English: Sailing card for the clipper ship California, depicting scenes from the California gold rush. Retrieved from https://commons.wikimedia.org/wiki/File:California_Clipper_500.jpg USA, G. ([object HTMLTableCellElement]). Italiano: Grafico che rappresenta il picco di Hubbert della produzione petrolifera mondiale. Retrieved from https://commons.wikimedia.org/wiki/File:Hubbert_world_2004.svg Vance, R. H. (1850). English: “Photomechanical reproduction of the 1850(?) daguerreotype by R. H. Vance shows James Marshall standing in front of Sutter’s sawmill, Coloma, California, where he discovered gold.” Retrieved from https://commons.wikimedia.org/wiki/File:Sutters_Mill.jpg
Views: 82863 Bozeman Science
How To Recover Gold From Computer Scrap with Household Chemicals
 
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To contribute: https://paypal.me/sreetips?locale.x=en_US Computer scrap has an undeterminable amount of gold. This enables sellers to charge, and get, from two to ten times what the scrap is worth in terms of the amount of gold that it contains. This video shows that it's not easy to get the gold and that the amount of gold yielded is very low. Now you have a place to look BEFORE you spend your hard-earned money on this kind of over-priced scrap.
Views: 6310678 sreetips
The price of gold: Chinese mining in Ghana documentary | Guardian Investigations
 
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Ghana has had a gold rush but here, Afua Hirsch discovers how Chinese immigrants are profiting from industrialising the country's small-scale mining industry. She sees for herself that, for the many locals who chance losing life and limb for a piece of the same pie, the risks are rarely worth it, and explores where the responsibility for regulating this industry lies. The price of gold: Chinese mining in Ghana documentary Subscribe to the Guardian HERE: http://bitly.com/UvkFpD Afua Hirsch reports on Ghana's gold rush in a film that discovers how Chinese immigrants are profiting from industrialising the country's small-scale mining industry. She sees for herself that, for the many locals who chance losing life and limb for a piece of the same pie, the risks are rarely worth it, and explores where the responsibility for regulating this industry lies.
Views: 2836317 The Guardian
Gold Ore, Silver Ore and Platinum Group Metals Ore Explained
 
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Silver, Gold, and Platinum group metals ores are presented in this second video which educates viewers on exploration and mining of precious metals ores. This is the Mineralogist's focus on the world of precious metals. The series intends to showcase the variety of career opportunities across all disciplines within the unique and exciting world of the precious metals industry. ipmi.org
Views: 127015 TheIPMI
Iridium - The MOST RARE Metal on Earth!
 
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Chemical Elements: http://www.ebay.com /usr/novaelementscom?_trksid=p2047675.l2559 NOVAELEMENTS: https://www.novaelements.com/ Mel Science chemical sets: https://goo.gl/SxwFlQ Patreon: https://www.patreon.com/Thoisoi?ty=h Facebook: https://www.facebook.com/thoisoi2 Interesting page about chemical experiments: http://m.chemicum.com/ Instagram: https://www.instagram.com/thoisoi/ So today I will tell you about the most rare metal on Earth - iridium. Iridium is a transitional metal, which is located in the middle of the periodic table, below rhodium. If we take a look at the prevalence of all elements in the earth's crust, Iridium holds the last place, that is a billion atoms of all that there is and only one atom of iridium. This metal is 40 times rarer than gold. In much higher concentrations iridium is found in meteorites and also in the depths of the Earth, in magma. Interestingly enough, in the layers of rock sediments, though more precisely in the formation of clay, that is aged about 66 million years there were found high concentrations of iridium and this can indicate the collision of Earth with a huge meteorite in the past, which in theory was the cause of the death of the dinosaurs. In it’s appearance iridium is a shiny metal that does not oxidize in air. This metal has almost the highest density of all metals, just 0.12% lower than that of osmium - the most dense metal. In this tiny tiny metal droplet, which is of the size of a match head, we have 1 gram of iridium. To help you understand how high is the density of iridium, I will show other metals with the same mass for comparison. Lead, copper, gallium, zinc, magnesium, and the lightest metal - lithium. The volumes of the first and last metal differ by about 30 times, although their mass is the same. Iridium is also a very hard metal that is firmer than the solid steel in 1.5 (one and a half) times. Iridium, in addition to its rarity is even the most stable metal that does not oxidize in air up to 2000 degrees, and is not soluble in either acid or aqua regia. Iridium can only react with the fluorine at temperatures of about 600 degrees. Unfortunately, due to the low activity of iridium, I cannot conduct any chemical experiments or have quality reactions with it. The only thing that I can do is make a fine powder of iridium and set it on fire in the air, but as you can see, in this case iridium dust is burning quite slowly and also requires dispersing it in the air. For the first time on youtube, you can observe a burning iridium. Also, due to the low activity of iridium, the metal does not tarnish in air, even when heated to above 1,000 degrees. The only thing that the drop of iridium got covered with is a partially evaporated ceramic layer, the one that the forceps are made from. Iridium compounds are can be either brown or yellow, such as the complex of Vasca, which is used as a catalyst in organic chemistry. By the way, Iridium is the only element that can give away 9 electrons and form compounds with +9 (plus nine) oxidation state. Iridium now finds many uses in science and technology. In most cases, we will probably find iridium in spark plugs for vehicles, due to the high stability of iridium to oxidation under the influence of electric discharge. Pure iridium is used for making crucibles for growing single crystals, foil for making non-amalgam cathodes, as well as as a part of the highly resistant to corrosion alloys. The first standard of mass of one kilogram was created in 1889 using an alloy composition of 90% platinum and 10% iridium and is called the International Prototype Kilogram, it is still kept in the Paris Chamber of Weights and Measures. Now you know more about one more of the elements, if you would like the scientific series of the elements to continue, please subscribe to my channel and also throw in some likes if you can! Thank you for watching.
Silver Mine Processing Facility
 
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Processing Raw Silver More of our trip to the Troy silver mine. The processing facility was very interesting.
Views: 1484 NelsonStudios
Kenya Miners part 4: Recovering 2-3 times more gold using our shaker table than sluices
 
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This is our fourth video in our five part series of our trip to Kenya to install a shaker table to help eliminate the use of mercury by the smalls scale gold miners. We met with Julius who is the president of the MICA gold mining cooperative and donated a shaker table to MICA to show the miners a different technology for gold concentration other than the use of mercury. Once the shaker table was set up the miners were amazed! The shaker table on average recovered 2-3 times more gold from the same material they had been processing with their blanket/burlap sluices and mercury use. The table can also process the material up to 10 times faster than the blanket/burlap sluices. The result being in some cases 30 times more gold for the miners in the same amount of processing time. Stay tuned for more videos of our trip to Kenya. For more information about our shaker table or any of our other products email us at [email protected] or give us a call at 360-595-4445. http://www.mbmmllc.com
Views: 123891 mbmmllc
Precious Metal Refining & Recovery, Episode 13: Platinum From Spark Plugs
 
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I extract precious metals from spark plugs. Help me make videos by donating here: https://www.patreon.com/CodysLab
Views: 953488 Cody'sLab
Kenya Miners Part 3: Mercury recovering gold from sluice cons, then burning to get salable gold
 
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This is our third video in our five part series of our trip to Kenya to install a shaker table to help eliminate the use of mercury by the smalls scale gold miners. We met with Julius who is the president of the MICA gold mining cooperative and donated a shaker table to MICA to show the miners a different technology for gold concentration other than the use of mercury. Once the shaker table was set up the miners were amazed! The shaker table on average recovered 2-3 times more gold from the same material they had been processing with their blanket/burlap sluices and mercury use. The table can also process the material up to 10 times faster than the blanket/burlap sluices. The result being in some cases 30 times more gold for the miners in the same amount of processing time. Stay tuned for more videos of our trip to Kenya. For more information about our shaker table or any of our other products email us at [email protected] or give us a call at 360-595-4445. http://www.mbmmllc.com
Views: 40954 mbmmllc
Gold Fingers - How to Recover Gold from Electronic Scrap
 
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http://www.goldnscrap.com In this video tutorial i'm showing how to recover gold from electronic circuit board scrap. Specifically the gold plating that is found on the board connector edge - A.K.A the "fingers". This video is a complementary to the complete written tutorial on Gold-N-Scrap website (direct link below) The process applies to other kinds of gold plated itmes, given the substrate is unreactive (such as PCB, ceramic, glass etc'...). This process is less suitable for metallic items that are gold plated such as gold plated pins and gold filled items, though it will work with much effort and large consumption of acid. Post a comment and let us know how much gold do you think this recovery process yielded. Click here to view the complete tutorial on Gold-N-Scrap: http://www.goldnscrap.com/index.php/find-scrap-circuit-boards-auctions-at-ebay-and-learn-how-to-evaluate-prices/99-gold-fingers-how-to-recover-gold-from-electronic-scrap With special thanks to the fine members of the Gold Refining Forum: http://www.goldrefiningforum.com ----------------------------------------------------- Here's a list of all the required equipment and chemicals for the Copper Cholride etching process shown in this video: Pls note, the below links are an affiliation links to Amazon - Every purchase made through these links will help support Gold-N-Scrap. Although much work and thought was put in this list, you must keep in mind that the following listed products may not nessecerly be the best or the cheapest. PYREX Griffin Low Form 1000mL Beaker Graduated Ea - http://amzn.to/1sJH6eJ PYREX Griffin Low Form 1000mL Beaker Graduated 6pk - http://amzn.to/1w0X3kI PYREX Griffin Low Form 2000mL Beaker Graduated Ea - http://amzn.to/1r6sYsX PYREX Watch Glass 75 mm - http://amzn.to/1uyaK4S PYREX Watch Glass 100 mm - http://amzn.to/1COV6Xi PYREX Watch Glass 150 mm - http://amzn.to/1whqQmR Glass Erlenmeyer Flask Set - 3 Sizes - 50, 150 and 250ml - http://amzn.to/122AX4C Glass Erlenmeyer Flask Set - 5 Sizes - 50, 150, 250, 500, & 1000ml - http://amzn.to/1wsddC5 Clear Vinyl Flexible Tubing 5/32" ID 50 ft - http://amzn.to/1r6zDmZ DC 6V Mini Air Pump Motor for Aquarium Oxygen Circulation - http://amzn.to/1ziVfWg Stamped Steel Support Stand with 3 Rings, 8" Length x 5" Width Base Size - http://amzn.to/1s1FskQ Sprayer Bottles 24 Oz. Pack Of 3 Pcs - http://amzn.to/1tHGZUN HDPE Plastic Funnel 180 mm (Pack of 5) - http://amzn.to/1t87K2l Polypropylene 4 Piece Lab Funnel Assortment - http://amzn.to/1w1jKoR Whatman Qualitative Circle Filter Paper 8?m Pore Size, 150mm Diameter (Pack of 100) - http://amzn.to/1x3Nb6j Filter Paper Qualitative Medium 18cm - http://amzn.to/1nxGzxe Filter Paper Qualitative Medium 24cm - http://amzn.to/1w1mbI7 Single electric Hot Plate Black - http://amzn.to/1FvEsQE Double electric Hot Plate Black - http://amzn.to/1tHKLNZ Plastic Transfer Pipettes 3ml, Graduated, Pack of 100 - http://amzn.to/1yUozRQ HYDROCHLORIC ACID 20 Be. Technical grade One gallon bottle - http://amzn.to/1CPgXOb Nitric Acid 475ml/16oz 67.2% Industrial Grade - http://amzn.to/1vGxAeL Sulfuric Acid 98% 950ml Bottle - http://amzn.to/ZMnvjS Sodium Metabisulfite Food Grade 98.6+% 1 lb - http://amzn.to/1tHM7bv
Views: 7770928 indeedItdoes
Precious Metal Refining & Recovery, Episode 7: Fining Silver
 
19:47
I refine some silverware into a pure silver bar. There seems to be some missing video at around 7:12 not sure why... This has happened before. There is nothing important so I have instructed YouTube to just remove the blank segment, lets see if they do it. Water into acid: https://www.youtube.com/watch?v=_f0vK8Wffgg Help me make videos by donating here: https://www.patreon.com/CodysLab
Views: 820491 Cody'sLab
How to Refine and Melt Platinum - Tutorial part 1
 
09:12
http://www.goldnscrap.com Platinum Refining Tutorial - part 1. A complete process is demonstrated: - cleaning & Dissolution with Aqua Regia. - Precipitation. - Calcining. - Melting Learn more about Gold, Silver and Platinum group metals Recovery and Refining methods and process. http://www.goldnscrap.com Resource for this work: Refining Precious Metal Wastes - c.m. Hoke The Recovery and Refining of Precious Metals - C. W. Ammen The "gold refining forum"
Views: 622176 indeedItdoes
American Gold Miner - Centrifuge Gold Equipment
 
08:42
Testing the Neffco Bowl centrifuge with one ounce of fines ranging from 12 minus - 100 minus. Processing the extracted black sands and recovering our test sample proves to be one of the most efficient extraction methods. Please visit our website for more information on products and contact information: https://www.AmericanGoldMiner.com
Views: 32604 AmericanGoldMiner
Kenya Miners Part 2: Crushing, grinding the ore, and sluicing gold the traditional African way
 
08:07
This is our second video in our five part series of our trip to Kenya to install a shaker table to help eliminate the use of mercury by the smalls scale gold miners. We met with Julius who is the president of the MICA gold mining cooperative and donated a shaker table to MICA to show the miners a different technology for gold concentration other than the use of mercury. Once the shaker table was set up the miners were amazed! The shaker table on average recovered 2-3 times more gold from the same material they had been processing with their blanket/burlap sluices and mercury use. The table can also process the material up to 10 times faster than the blanket/burlap sluices. The result being in some cases 30 times more gold for the miners in the same amount of processing time. Stay tuned for more videos of our trip to Kenya. For more information about our shaker table or any of our other products email us at [email protected] or give us a call at 360-595-4445. http://www.mbmmllc.com
Views: 17136 mbmmllc
The Process of Excavating and Refining Gold
 
04:50
How gold is produced, from excavation to ingot-form.
Views: 439434 Triwood1973
Gold recovery of crushed motherboards from MBMMLLC
 
15:56
This video is the first of two to discuss the recovery process from motherboards that have been sent through a crusher and then a shaker table. Also are some other great gold bearing materials provided by Jason Gabor at Mount Baker Mining and Metals LLC. Here are some links to videos from MBMMLLC: Link to the hammer mill/shaker table board grinding process: https://www.youtube.com/watch?v=N5GBGbcDY6c Link to gold ore processing: https://www.youtube.com/watch?v=NlAXVFFFiEI Link to smelting black sands part 1: https://www.youtube.com/watch?v=ko608Ti7lcs Link to smelting black sands part 2: https://www.youtube.com/watch?v=cnJeK9CwkiU
Views: 26247 Moose Scrapper
Dissolving Gold in Mercury
 
06:11
Follow me on Instagram: https://goo.gl/5oQiWQ Follow me on Twitter: https://goo.gl/uCmnV4 ----------------------------------------- Okay, so we are not truly dissolving the gold, we are actually forming an alloy between the gold and the mercury (called an amalgam). This process is not only cool to look at, but it also is really useful to extract gold from ore. The gold-mercury amalgam can then be isolated and the mercury is boiled off or removed chemically. This leaves behind relatively pure gold. Outro music: https://soundcloud.com/sorrysines
Views: 1380068 NileRed
Precious Metal Refining & Recovery, Episode 5: Recovering gold from RAM
 
12:54
I use Cyanide and Iodine to remove gold from cold coated computer parts. Next week I'll tackle metal pins. Cyanide videos: Cody; https://www.youtube.com/watch?v=VUeooyhD5Xk NurdRage; https://www.youtube.com/watch?v=xz7i11XC9wk Help me make videos by donating here: https://www.patreon.com/CodysLab
Views: 1360045 Cody'sLab
Gold Extraction using Mercury (quimballet method)
 
02:04
This video is about the use of quimballets for amalgamating gold with mercury as part of Artisanal and Small Scale Gold Mining.
Views: 6954 Jack Caravanos
Finding Something Unexpected in an Abandoned Copper Mine
 
14:48
What an unexpected discovery! Paul and I never imagined finding what we found deep in this abandoned copper mine in Arizona. The Warren-Bisbee Mine's obscure entrance was basically a rabbit hole and didn't look too promising. However, once we gained entry by sliding in on our backs, the tunnels opened up and were surprisingly extensive. One tunnel led us deep into the mine to an inner area where we found -- something. Something impressive. Something rare that I've only seen a few times in abandoned mines over the last seven years or so. And it's all here in this video. Enjoy! Don't forget: New videos are released at midnight (Pacific Time) on the 1st, 10th, and 20th of each month. View and use the information in my videos at your own risk. All abandoned mines (especially the ones in my videos) are very dangerous and should not be entered under any circumstances. No potentially life-threatening, dangerous, or legal decisions and assumptions should be made based on information in my videos. #ExploringAbandonedMines #AbandonedMines #MineExploring #UndergroundExploration
The Devastating Effects Of Gold Mining
 
04:30
How Algae Could Change The Fossil Fuel Industry https://www.youtube.com/watch?v=yCNkmi7VE0I » Subscribe to NowThis World: http://go.nowth.is/World_Subscribe Gold has been a valuable commodity for centuries, but the process to obtain it has dangerous costs. So what is true price of gold? Learn More: National Geographic: The Real Price of Gold http://ngm.nationalgeographic.com/2009/01/gold/larmer-text/3 Business Insider: The Cost Of Mining An Ounce Of Gold http://www.businessinsider.com/the-cost-of-mining-gold-2013-6 Al Jazeera: The true price of gold http://america.aljazeera.com/watch/shows/techknow/articles/2015/6/4/the-true-price-of-gold.html More from NowThis: » Subscribe to NowThis News: http://go.nowth.is/News_Subscribe NowThis World is dedicated to bringing you topical explainers about the world around you. Each week we’ll be exploring current stories in international news, by examining the facts, providing historical context, and outlining the key players involved. We’ll also highlight powerful countries, ideologies, influential leaders, and ongoing global conflicts that are shaping the current landscape of the international community across the globe today. Like NowThis World on Facebook: https://go.nowth.is/World_Facebook Connect with Judah: Follow @judah_robinson on Twitter – Facebook: http://go.nowth.is/LikeJudah Connect with Versha: Follow @versharma on Twitter – Facebook: http://go.nowth.is/LikeVersha http://www.youtube.com/nowthisworld
Views: 144321 NowThis World
How to extract Silver from a Coin (or other silver containing material)
 
04:59
In this video I show you how to extract silver from a coin or other metallic material. The coin that I used is 50% copper and 50% silver. I loosely followed the procedure from here: http://www.abovetopsecret.com/forum/thread810904/pg1
Views: 269206 NileRed
XRF Gold Testing Machine by Fischer Measurement Technologies
 
02:13
Gold Testing Machine by Fischer Measurement Technologies - Precious metals are the basis for jewellery production however, they are also often used in high-tech industries such as electronics and medicine. Fischer Gold Testing machine is employed in various industry such as: - Jewellery Retail store - Hallmarking Centre - Assaying and Tunch Centre - Gold Refineries - Gold Wholeseller and Manufacturers - Banks - Gold Testing Centre The product cycle for precious metals ranges from the extraction of raw materials in mines via specific and at times very complex processing techniques all the way to recycling. Highest purity of the base metals, precise alloying and control of trace and minor elements is the basis of all precious metal products. FISCHER Spectrometer offers you the right solution for precise and reliable measurements in all these areas. This Karat Testing XRF Machine comes in 4 variants 1. Goldscope SD 510 with SI PIN Detector 2. Goldscope SD 515 with SI PIN Detector 3. Goldscope SD 520 with SDD Detector 4. Goldscope SD 550 with SDD Detector For More Information Contact Vijay Shankar Rai : 9970397225
Electrolytic Refining of Metals | #aumsum
 
05:28
Our topic for today is Electrolytic Refining of Metals. Electrolytic refining is the process of obtaining pure metals like gold, silver, copper etc. by the process of electrolysis. Let us learn how copper is refined electrolytically. Take acidified copper sulphate solution as the electrolyte. Take a thick rod of impure copper and a thin rod of pure copper. Make impure copper as the anode and pure copper as the cathode. When current is passed through the solution, the CuSO4 electrolyte splits into copper ions and sulphate ions. The copper ions from the electrolyte get attracted towards the cathode. The copper ions gain 2 electrons from the cathode and deposit as pure copper atoms on the thin copper rod. At the same time, the copper atoms from the anode lose 2 electrons, convert into copper ions and dissolve in the electrolytic solution. In this way, indirectly, copper atoms from the anode deposit on the cathode. Hence, size of anode decreases and size of cathode increases. In this way, all the pure copper from the anode deposits on the cathode. The impurities in the impure copper rod settle down as anode mud at the bottom of the container.
Views: 451439 It's AumSum Time
Making History - Medieval Mining
 
04:55
Since the Bronze age the strength and security of a civilization depended on their access to various metals such as gold, silver, copper, tin, and Iron. Finding and extracting these metals proved to be extremely difficult
Views: 14563 AllHistories
Tungsten  - The MOST REFRACTORY Metal ON EARTH!
 
05:46
Patreon: https://www.patreon.com/Thoisoi?ty=h Facebook: https://www.facebook.com/thoisoi2 Instagram: https://www.instagram.com/thoisoi/ So, today I will tell you about the top refractory metal on Earth – tungsten. Tungsten is one of the transition metals, and is located in group 6 of the periodic table of chemical elements. It got it’s name from the mineral wolframite, from which this mineral is obtained. Also, a tiny fun fact, wolfram is a Swedish word. Now if we look at the appearance, tungsten looks like a shiny metal with gray tint, though if you hold a rod of tungsten in the hand you may experience one special characteristic. The density of tungsten is almost 20 grams per cubic centimeter, which is very close to the density of gold. That is the reason why tungsten was used for faking gold bars. A couple of years ago there was news that some gold bars had a filling of tungsten inside, which of course is significantly cheaper than gold. Though the forgery causes skepticism among some scientists. To clearly demonstrate to you how much is 20 gram per cubic centimeter, I will compare the mass of a rod of tungsten and a rod of magnesium. As you can see, the tungsten rod is not only several times smaller than the magnesium one, but is also even heavier than the latter. Also, tungsten is a fairly brittle metal, it is plastic only when it has a very high purity. In addition, tungsten has the highest tensile strength. However, this is not the main feature of this metal. To melt a piece of tungsten, you need to reach an extremely high temperature of 3422 degrees Celsius. That is why this metal was at first used as the filament in incandescent bulbs. However, if you pass a current through the thin tungsten filament, it can overheat and then break, thereby ceasing any production of light . All is due to the fact that in air tungsten oxidizes at a high temperature, forming on its surface oxides of tungsten. Also, the tungsten rod after calcination with a gas burner obtains beautiful colored stains, caused by the different thickness of the oxide film on the metal surface. However, in light bulbs it’s not really about the beauty, more about the ability to actually produce light, hence all the oxygen from the bulb is pumped out and is replaced with a mixture of nitrogen and argon under reduced pressure. In these circumstances, the filament can shine for quite a long time. Also another fun fact, when taking pictures of the the filament in macro I’ve noticed the difference of the more powerful old light bulbs and the less powerful modern ones. In the old light bulbs the filament is made simply in the form of a spiral, but it turns out the modern ones have a double helix, making the filament thinner, which creates more sections of uneven thickness in the yarn, which then leads to the more rapid failure of the bulb. From a chemical point of view, tungsten is fairly stable, it is not soluble in hydrochloric or sulphuric acids. And the most stable compounds of hexavalent tungsten, such as, for example, the sodium tungstate are used as a catalyst of epoxidation in the organic synthesis, andin manufacturing of pigments. Sodium tungstate is soluble in water, but instead of water I will use the 30% acetic acid to obtain the so-called tungsten blue pigment that has a very intense color. To do this, we’ll add a piece of magnesium to the test-tube. Magnesium reacts with acetic acid, releasing hydrogen, which in turn recovers tungsten from the hexavalent state to tungsten oxide 3 with an admixture of other oxides. The formed particles of oxides are of a small size, allowing them to form colloidal solution of a bright blue or blue-green color. The shade depends mainly on the acidity of the environment. The obtained tungsten blue can be used as a good dye for fabric, paper or other items that have the ability to adsorb particles of tungsten blue. The metal tungsten has a very high hardness and is hardly turned on the grinding wheel. Today tungsten finds many applications. First and foremost, this metal is used in filaments for the halogen lamps, refractory electrodes for argon-arc welding, as well as in hard projectile cores in some military shells. The most common substance of the tungsten compounds is tungsten carbide, which also goes by the name Pobedit but mainly in Russia (which if you translate that to English means “will win”). It is mostly used as a cutter when machining metals or stones because of its high hardness. Quality high hardness steel would almost always be composed of tungsten. So that’s what this metal tungsten is like, which is found in practically every house and has the most interesting and unique properties.
From the Ash - Traditional Gold Panning
 
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#Gold #AFL #Grandfinal2018 #vogusprospecting #nosmallcreator Well its that time of year, the 2018 AFL Grand Final, I don't personally watch footy however I'm more than happy to provide the pre game entertainment! After last weeks video I took stock of where I was heading with this channel. And I realised something, I was pushing myself to the limit of my film making ability and whilst it produced some good videos it was also fraught with stress and oversights. So I have taken it back to basics in more ways than one. I took the opportunity to do something that's not often done, on the advice of one of my subscribers I took a metal gold pan and some basic tool along with Grizzly to a new creek and I found gold and a specimen all the while filing a video I truly enjoyed making. ***Apprentice Applications*** A future video of mine is going to tackle the 101 of gold prospecting, this video will require the assistance of a green horn. Someone who has limited experience Prospecting. For this I am taking applications to take someone out and show them the ropes over the course of a day. If you wish to apply please read the following carefully. I won't be able to reply to all applicants, so those who are picked will be the only ones receiving emails. If you're not picked no hard feelings, I just have limited space and time. APPLICATIONS: to be sent via email only! ***[email protected]*** 1 - write a short bio about yourself and your experience with gold. I want to know who you are, boils and all. You MUST have limited experience, this is not a time thing but an experience thing. If you have been going for 10 years and only have a gram you're just as eligible as some one who's been going for just a month. 2 - applicants must be available for a filming day during the week. To be decided upon. 3 - no kids, sorry but the terrain and danger of mine shafts and snakes is too high and filming days can be pretty intense affairs. 4 - Must be able to get to Beechworth, Victoria, Australia. 5 - include name, email and contact number. 6 - you really got to like dogs. 7 - if you're camera shy nows the time to work on that ☺😄 Send that information through and I'll let the applicant chosen the details in early October. SOCIAL MEDIA- Website: https://www.vogusprospecting.com/ Instagram: https://www.instagram.com/vo_gus_prospecting/ Join me on Facebook: https://www.facebook.com/vogus/ Follow my Volg Channel Challenge Chris: https://www.youtube.com/channel/UCbfVApyFE0_FDYhpdZE6a4w SUPPORT MY CHANNEL- Become a Patron: https://www.patreon.com/vogusprospecting Buy my book: https://www.facebook.com/vogus/posts/491742077854485 EQUIPMENT - Pans used: Gold Claw: https://www.goldclaw.com Detector: https://www.minelab.com/metal-detectors/treasure-detectors/equinox-600
Views: 15745 Vo-Gus Prospecting
What is COBALT?
 
02:16
What is COBALT? Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Cobalt-based blue pigments (cobalt blue) have been used since ancient times for jewelry and paints, and to impart a distinctive blue tint to glass, but the color was later thought by alchemists to be due to the known metal bismuth. Miners had long used the name kobold ore (German for goblin ore) for some of the blue-pigment producing minerals; they were so named because they were poor in known metals, and gave poisonous arsenic-containing fumes upon smelting. In 1735, such ores were found to be reducible to a new metal (the first discovered since ancient times), and this was ultimately named for the kobold. Today, some cobalt is produced specifically from various metallic-lustered ores, for example cobaltite , but the main source of the element is as a by-product of copper and nickel mining. The copper belt in the Democratic Republic of the Congo, Central African Republic and Zambia yields most of the cobalt mined worldwide. Cobalt is primarily used in the preparation of magnetic, wear-resistant and high-strength alloys. The compounds, cobalt silicate and cobalt aluminate give a distinctive deep blue color to glass, ceramics, inks, paints and varnishes. Cobalt occurs naturally as only one stable isotope, cobalt-59. Cobalt-60 is a commercially important radioisotope, used as a radioactive tracer and for the production of high energy gamma rays. Cobalt is the active center of coenzymes called cobalamins, the most common example of which is vitamin B12. As such, it is an essential trace dietary mineral for all animals. Cobalt in inorganic form is also a micronutrient for bacteria, algae and fungi.
Views: 15654 Knowledge Archive
See how diamonds are cut from rocks
 
02:17
Get a rare look at the entire process of how rocks are turned into magnificent sparkling diamonds in the hands of experienced craftsmen.
Views: 2287396 CNN Business
Metal Refining & Recovery, Episode 23: Recovering Inquart Silver
 
20:17
I recover the silver that I used in the process to purify gold from jewelry. Gold refining video: https://www.youtube.com/watch?v=wuwbwYNnAKA inquartation explained: https://www.youtube.com/watch?v=aX4Iq11j2dI Making pure silver from Sterling Silver: https://www.youtube.com/watch?v=IeLczpPCqV8 Help me make videos by donating here: https://www.patreon.com/CodysLab Follow me on Facebook: https://www.facebook.com/codydonreeder SubReddit: https://www.reddit.com/r/codyslab/
Views: 678815 Cody'sLab
How To Recover Gold From Computer Scrap is veritable gold mine with Household Chemicals. recycling
 
06:28
How To Recover Gold From Computer Scrap is veritable gold mine with Household Chemicals. recycling. Your old cpu computer is a veritable gold mine. Recovery of gold from e waste Electronic waste containing gold. Archimedes Channel Update new video clip. Gold Recycle Finding gold Electronic Waste hidden. rare animal bizarre. Computer scrap has an undeterminable amount of gold. This enables sellers to charge, and get, from two to ten times what the scrap is worth in terms of the amount of gold that it contains. This video shows that it's not easy to get the gold and that the amount of gold yielded is very low. Now you have a place to look BEFORE you spend your hard-earned money on this kind of over-priced scrap. The Gold Extraction Process. To recover recyclable Gold, professionals use a Gold extraction process to remove the metal from items such as computer mother boards and jewelry settings. ... Gold melting typically involves a crucible and the temperature required to melt it depends on its purity. Hope you like our compilation, please share it and SUBSCRIBE! Watch also our other videos! youtube Subscribe to this ►► Subscribe https://goo.gl/93XuWY ✔️ THANK YOU ✔️
Views: 402422 Archimedes Channel
Ghana’s gold diggers: Scramble comes at high cost
 
05:27
People have mined for gold in what is now Ghana for thousands of years. The precious metal has always been easy to find, hence the name the British gave the country when they colonised it: the Gold Coast. In this four-part film series, we investigate the role of illegal, small-scale mining — an increasingly important part of Ghana’s gold producing industry — and its impacts on human health and the environment. As a result of a modern-day gold rush induced by a spike in the price of the metal triggered by the 2008 financial crisis, Ghana is now the second largest producer of gold in Africa. More than 30 per cent of this gold is produced by small-scale miners, known as galamseys, who often work illegally. Despite the price of gold having fallen over the past year, there is no sign of an end to the galamsey activity. In this series, we travel to Ghana’s gold belt to meet the galamseys and learn about their struggle with poverty, pollution and stigma. The galamseys don’t know how to safely handle the mercury and other dangerous elements needed to extract and process gold, putting their health at risk, as well as that of those who eat fish from polluted rivers. As the mining industry keeps expanding, its toll on public health and the environment is morphing into a national crisis. During our trip, we explore potential ways to turn this challenge into an opportunity, tapping into the economic potential of the mining sector while making sure that the galamseys are protected from health hazards and exploitation. We also learn how Ghana’s gold rush has become an international race, with thousands of Chinese miners illegally entering the country over the past ten years. See our Mining with impact series here: http://www.scidev.net/global/article-series.mining-with-impact.html
Views: 44261 scidevnet
The Manado Method (English Version)
 
18:32
This video shows a environmentally-friendly method of gold recovery that can eliminate the use mercury in artisanal gold mining. It shows how gold recovery and incomes can be greatly improved while also saving the environment and protecting community health.
Views: 115817 YTSMedia
How to make iron in the old way
 
12:27
During the Viking market at Foteviken Museum in Sweden in 2011, one Danish and two Polish Blacksmiths made ​​iron in the same old way that the Vikings did it one thousand years ago.
Views: 295437 Sven Rosborn

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