Search results “Gold mining refining process of silver”
silver ore smelting
Smelting Silver Ore with the KK-6
Views: 425126 microwavegoldkiln.com
How Gold Is Made The Mining and Refinement Process Basics
Gold is a soft metal which is not effected by water or oxygen. The process of mining, with the help of Geologists, and then the Refinement process is very interesting. This short video explains the basics, however, it is not about the investing of or costs, etc of gold. Thank you for supporting our channel.
Views: 97215 FreedomForceUSA
Silver Mining Process / How is Silver Bullion Mined?
This video shows in detail how silver is extracted from mines and turned into an industrial silver bar. Thanks for watching, Subscribe below! Silver mining process How is silver mined?
Ancient gold smelting rare today. extract recovery process of refining gold to remove any impurities
►► 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 #ArchimedesChannel
Views: 1206474 Archimedes Channel
Silver Refining at G&S Metals and Refiners, Creating a Silver Ingot
In this video G&S Metals takes you inside our refining process with the first step in our refining procedure with the melting of 21 pounds of mixed silver, and the casting of a silver ingot. The silver ingot will later be further refined into pure silver and will be used in the manufacturing of our silver mill products. For more information, including how to register as a refining customer with G&S Metals visit our website https://www.gsgold.com
Gold Mining Process / How is Gold Mined?
This video goes through a mine and shows how they mine their GOLD. Thanks for Watching, Subscribe Below! Gold mining How is gold mined?
Views: 123640 Millennial Entrepreneur
DIY Melting gold silver Ore on a budget - Moon Shiner
Here we go into basic detail of how to melt your own ore the cheapest and effective ways, with minimal tools, some basic cheap fire power, and in 10 minutes or less
Views: 15037 Skyline Fabrication
Complete gold recovery processing line for gold ore
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: 85349 mbmmllc
Silver Mining Documentary - How Silver Is Mined and Reformed - Prehistoric TV
Silver Mining Documentary - How Silver Is Mined and Reformed - Prehistoric TV Silver is a chemical element with symbol Ag (from the Latin argentum, derived from the Greek ὰργὀς: "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of the seven metals of antiquity, silver has had an enduring role in most human cultures. Silver is used in numerous applications other than currency, such as solar panels, water filtration, jewellery, ornaments, high-value tableware and utensils (hence the term silverware), and as an investment medium (coins and bullion). Silver is used industrially in electrical contacts and conductors, in specialized mirrors, window coatings, and in catalysis of chemical reactions. Silver compounds are used in photographic film and X-rays. Dilute silver nitrate solutions and other silver compounds are used as disinfectants and microbiocides (oligodynamic effect), added to bandages and wound-dressings, catheters, and other medical instruments. Read More: https://en.wikipedia.org/wiki/Silver
Views: 5478 Pre Historic TV
Free Gold, Silver, Copper & Minerals From Mine Slag!
Imagine finding high grade free gold, silver & copper ore. Then finding those same elements in something that's already been refined? Old refining techniques at this onsite refinery only yielded as high as 60% recovery rate for this sulphide ore that was mined. Some of these elements are found as free mill and some appear to still be in there sulphide form. We found a small waste pile of mine slag while gold prospecting one of our properties in BC, near an old mine on one of our hardrock mining claims. About 3-5% would be graded about the same as the assay done at the end of the video. These are left in a pile near the old mine dump. Pieces of almost pure copper can still be found as melted nuggets. Slag is the glass like by product left over after a desired such as gold, silver, copper, lead....ect.. metal has been separated or smelted from its natural ore. Slag is usually a mixture of metal oxides and silicon dioxide. However, slags can contain metal sulfides and elemental metals. Just for fun an assay was done on a small sample. Yeilding some good gold, silver, copper and lead values the results are at the end of the video! This video was made possible by our patrons listed below! Chuck Preston, Brian Hollingshead, Cathy Speidel & Mi$fitrick-Ugly Thumb Prospecting, Donnie Young, Ian Mays, Rigo Tolentino, John Granholm & Matthew Keener. Here is the link if you want to help support us and win some prizes like gold, mineral samples and prospecting tools in our frequent giveaways: https://www.patreon.com/911mining Thank you to all the patrons who currently support us!! Also don't forget to follow us on Facebook! https://m.facebook.com/911mining Website: https://911mining.com/ Thank you & Enjoy! 911 Mining & Prospecting Co
Extracting gold and silver from ore
So next week or something we will refine it tell me what you thought in the commets.please like,share,comment,and subscribe for science and exploration. Also when we were panning the was a lot of sulfites to where the water was really weak sulfuric acid. Music-https://m.youtube.com/playlist?list=PL1OrIZZB1-p3vFzxJnZFqI-fVszJGoy_i Twitter-https://twitter.com/RedclawHorazona
Views: 20753 Cavan Horazona
Precious Metal Refining & Recovery, Episode 7: Fining Silver
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: 793676 Cody'sLab
Gold Mining How Gold is mined, refined and formed. A Documentary Film
Gold Mining - How Gold is mined, refined and formed. A Documentary Film Gold mining is the process of mining of gold or gold ores from the ground. There are . Gold Mining - How Gold is mined, refined and formed. A Documentary Film Gold Mining - How Gold is mined, refined and formed. A Documentary Film Gold . Gold Mining - How Gold is mined, refined and formed. A Documentary Film Gold Mining - How Gold is mined, refined and formed. A Documentary Film Gold . Gold Mining - How Gold is mined, refined and formed. A Documentary Film Gold Mining - How Gold is mined, refined and formed. A Documentary Film Gold .
Views: 52737 Merid Kense
Refiner's Fire - How is Silver Refined
Silver mined and refined in just over 3 min
Views: 239 Josh Ronaldo
Gold and Silver Recovery - Refining Computer Parts
Short video on 2-step process of stripping gold plating from high-grade computer CPUs, pins and edge connectors. First is removing silver and base metals, second is dissolving gold plating. Small batch only made a few grams of powder, about 70% by weight turns to metal when smelted. More details are in ebooks availabe at www.bestgoldbuyers.com/products.html Also the Yahoo Group at GoldandPlatinumRecycling has tips on refining and recycling precious metals. From goldmetalx.com --GoldMetalsExpress. Video is for informational purposes only. Any refining should be done in a well-equipped lab by trained personnel. C2008 TCS - GMX Media Comments or refining questions can be left at the refining Group. Thanks for viewing!
Views: 589714 tcsnet
Newmont Mining Corporation: How Gold is Made
This 15-minute Newmont documentary outlines the process of how gold is mined and how the process has changed over the past 150 years. Visit our website to learn more: http://newmont.com/
Views: 88664 Newmont Mining
The Process of Excavating and Refining Gold
How gold is produced, from excavation to ingot-form.
Views: 435305 Triwood1973
High Grade Gold & Silver Ore From A Mine Dump!
High grade gold and silver ore from an old mine dump. Assay results at the end of the video. This last set of assays completes our geochemical sampling program for the property. Hope everyone enjoys the prospecting video and stay tuned for gold nuggets and mineral exploration! This video was made possible by our patrons support! Thank you to all our supporters! Here is the link: Patreon: https://www.patreon.com/911mining Facebook: https://m.facebook.com/911mining Website: www.911mining.com Business Inquiries: [email protected] Thank you and happy gold mining! 911 Mining & Prospecting Co
How to extract silver from mine
Views: 92283 ginzan2009
How gold is produced
This video was produced by Newmont Mining Corporation and gives a general overview of gold mining in Nevada from extraction to reclamation.
Views: 417347 nevadamining
💰 gold refining process method. e book Gold extraction process. aqua regia 24k pure 99.99% refine.
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 ✔️ Archimedes Channel http://www.goldextractionprocess.com We are told how The processes used to refine gold methods of refining gold are refining use of chemicals. ebook gold refining process. e book gold recovery. aqua regia refine gold refining recovery 24k pure 99.99% Aqua regia chalcogenides. Subscribe to this ►► Subscribe https://goo.gl/93XuWY ✔️ THANK YOU ✔️ Aqua regia (Latin, lit. "royal water" or "king's water") is a mixture of nitric acid and hydrochloric acid,optimally in a molar ratio of 1:3. Aqua regia is a yellow-orange fuming liquid. Aqua regia was so named by alchemists because it can dissolve the noble metals gold and platinum. However, aqua regia does not dissolve or corrode silver, titanium, iridium, ruthenium, rhenium, tantalum, niobium, hafnium, osmium, or rhodium. Applications Aqua regia is primarily used to produce chloroauric acid, the electrolyte in the Wohlwill process. This process is used for refining the highest quality (99.999%) gold. Aqua regia is also used in etching and in specific analytic procedures. It is also used in some laboratories to clean glassware of organic compounds and metal particles. This method is preferred over the "traditional" chromic acid bath for cleaning NMR tubes, because no traces of paramagnetic chromium can remain to spoil spectra. While chromic acid baths are discouraged because of the high toxicity of chromium and the potential for explosions, aqua regia is itself very corrosive and has been implicated in several explosions due to mishandling. Due to the reaction between its components resulting in its decomposition, aqua regia quickly loses its effectiveness (yet remains a strong acid), so its components are usually only mixed immediately before use. While local regulations may vary, aqua regia may be disposed of by careful neutralization, before being poured down the sink. If there is contamination by dissolved metals, the neutralized solution should be collected for disposal. Chemistry Dissolving gold. Pure gold precipitate produced by the aqua regia chemical refining process Aqua regia dissolves gold, though neither constituent acid will do so alone, because, in combination, each acid performs a different task. Nitric acid is a powerful oxidizer, which will actually dissolve a virtually undetectable amount of gold, forming gold ions (Au3+). The hydrochloric acid provides a ready supply of chloride ions (Cl−), which react with the gold ions to produce tetrachloroaurate(III) anions, also in solution. The reaction with hydrochloric acid is an equilibrium reaction which favors formation of chloroaurate anions (AuCl4−). This results in a removal of gold ions from solution and allows further oxidation of gold to take place. The gold dissolves to become chloroauric acid. In addition, gold may be dissolved by the free chlorine present in aqua regia. Appropriate equations are.
Views: 33081 Archimedes Channel
Silver from Galena. The Parkes Process. ask Jeff Williams
We use Zinc in the process of removing the Silver from the Lead Sulfide because zinc is not very soluble with lead but very soluble with silver When zinc is added to liquid lead that contains silver as a contaminant, the silver migrates into the zinc. The zinc remains in a separate layer and is easily removed. The zinc-silver solution is then heated until the zinc vaporizes, leaving nearly pure silver behind. Cupellation can also be used for the removal of Zinc If gold is present in the liquid lead, it can also be removed and isolated by the same process. We use iron from a skillet to aid in oxidation of lead sulfide which pulls the sulfur from the lead sulfide and creates Sulfur Dioxide. The carbon from the charcoal is added to reduce it down to lead matte all in one step Now we know this is an older vid but it got pulled down for some reason and we are re posting it. If you liked this vid....well then Sonny Jim give it a Big thumbs Up and leave us a comment cause we love to read them...... So you know what I am gonna say huh... So C'mon.....Let's Go !!!!!!
Views: 13126 Ask Jeff Williams
Metal Refining & Recovery, Episode 23: Recovering Inquart Silver
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: 628541 Cody'sLab
Gold Ore, Silver Ore and Platinum Group Metals Ore Explained
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: 122162 TheIPMI
Refining Pure Gold By Inquartation With Silver Only
To contribute: https://paypal.me/sreetips?locale.x=en_US High purity gold with no aqua regia refining - this entire process took only 4 hours to complete
Views: 31168 sreetips
Difficulty in Refining Cobalt Silver ore. Don't try this at home!
Me & me buddy showing the difficulties & dangers in Refining Cobalt Silver. Do not try this at home. This is an informative video only.
Views: 3668 OntarioRocks&Relics
Mining for Precious Metals explained: Gold, Silver, Platinum, Palladium
This is the 3rd video in a serious focusing on precious metals recovery from primary sources (ore). ipmi.org
Views: 38550 TheIPMI
Silver Mining | The Search for the Gleaming Metal | World Documentary Films
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: 32454 HD Documentary Films
How to extract Silver from a Coin (or other silver containing material)
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: 255788 NileRed
Information secret Formula Silver Recovery Methods video Easy, recycling Contact Relay Magnetic
how to recycling Silver. http://www.goldextractionprocess.com Information secret Formula Silver Recovery Methods. video Easy and Quick. Silver Recovery From Contact Silver Relay Magnetic Circuit Breaker, Jewelry Silver, X-Ray/ Ultrasound Films. You can literally. Recovering Silver, silver recovery from scrap,Refining Silver, silver extraction,and Silver mining. refining silver with nitric acid. Archimedes Channel Update new video clip. Gold Recycle Finding gold Electronic Waste hidden, refining silver process. 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 ✔️ วิดีโอข้อมูลลับ สูตรวิธีการสกัดเงิน ทำง่ายและรวดเร็ว สกัดเงินจากเงินติดรีเลย์เบรกเกอร์ เครื่องประดับเงิน, X-Ray ฟิล์ม เอกซเรย์ ฟิล์มภาพยนตร์
Views: 176888 Archimedes Channel
सोना(Gold) कैसे निकाला जाता है? Process for Discovering, Mining & Refining Gold
धरती के अंदर तेल और गैस के भंडारों का पता कैसे लगाया जाता है? How to find oil and gas? Link : https://www.youtube.com/watch?v=IsgYLbhCUaA #gold #Gold_in_India #Gold_mining Some people cover their cars with Gold, some wear clothes made of gold wire, someone designs Gold their mobile , there are many people in the world who use gold in different way. women of India are also addicted to gold ornaments. people had bought gold to hide their money. But do you know how gold is formed inside the earth? What are the ways to find Gold? How Gold prepared? From which places of India does gold come out? Which countries is the largest gold source? How the gold came inside the earth or how? Humans would never have got the chance to be ashamed of gold. Millions of years ago when the earth was being built. Along with these extraordinary conflicts, billions of tons of molten gold and platinum fell into the center of the Earth and became part of its crude. But today the human race has become so clever that he is in search of everything and is in the process of getting it. So something like this Gold come on earth and today its prices are high. How to find Gold in Under Ground ? So this work happens in the same way as the oil and gas deposits in the ground are detected, in which ground penetration radar (GPR) is used to find out what is in the ground. In fact, it records the physical properties of the soil such as density, magnetic properties, registration, on which the graph is prepared and it is estimated that the core analysis is done under the soil, then the core analysis is done. Drilling it under the ground and removing a little debris and analyzing it. It gives accurate information about what is below. Apart from this, hidden property, metal, i.e. gold, silver, copper etc. are detected through VLF technology. For this the waves are sent within the ground. Once after hitting these waves, the VLF receiver creates an electromagnetic field around that object and produces a sequestration by collision the special metal. This kind of survey is carried out by the team of Archaeological Survey of India (ASI) and Geological Survey of India (GSI). There are 7 different ways to find gold. 1) break the rocks by exploding 2) Milling of stones 3) the process of wetting sand 4) process of cyanide 5) Amalgamation 6) Flotation So by this process, you can guess that finding gold is a very difficult task, this is the reason why gold prices are so high in the market. Gold is very solid and it is very difficult to actually make ornaments. Usually gold is found either in the form of alloy with either pale or silver or alone. It is also found in the form of Calvarites, Sylvainite, Petjite and Cranerite ores. And the gold which is extracted from the mine is in the form of ore, which is absolutely pure gold. Which places of India are extracted gold? Most of the production of gold in India is in the state of Karnataka, where gold is extracted from the mines called Kolar, Hutti and Uti. Apart from this, gold is also extracted from Andhra Pradesh and Jharkhand's Hirabuddin and Kendraakocha mines. If we talk about a mine of Jharkhand, then about 4 grams of gold is extracted from a ton of stone and on average, 7 kg of gold is extracted from a mine here every year. The biggest gold mines in the world. In which Kimberley mine is in Africa, after Grasberg mine which is in Papua, Carlin Nevada mine which is in the US, weladero mine which is in Argentina and the writer's quarry is in Papua New Guinea. 5 countries that produce the most gold or produce gold. 1. China which has been ahead in gold production for many years, China produces 426 tons of gold in about a year. But his government has seen a decline of 6 percent in the past year due to the efforts taken to fight pollution and increase environmental awareness. However, due to the excavation of several mines in existing projects, this year's production is expected to begin. 2. Australia Australia produces 295.1 tons of gold in a year. The mineral industry is more than half of Australia's total exports and generates about 8 percent of GDP. 3. Russia A large part of European gold comes from Russia, which has been increasing its production every year since 2010. Russia produced 17 tons more than last year, And Russia produces 270 tonnes of gold every year. 4. United States America also pulled 8 tonnes more gold this year compared to the previous year. Where the production was supported by Project Ramp-up in the Long Canyon Project in Nevada and the Hail project in South Carolina. And the United States produces 230 tonnes of gold every year. And about 78 percent of the US gold comes from Nevada alone. 5. Canada Fall of a glacier in north British Columbia in Toronto, Sebrija Gold stumbled upon an important golden area and estimated to be estimated at 780 metric tons. Canada produces 175 tons of gold every year.
Gold Refinery Refining Gold Recycle Gold extraction
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 ✔️ e-waste recycling gold recovery from all kinds of electronic scrap, like computer mother boards, different kinds of processors, RAMs, hard drives, scrap gold, cellphones old,and all other devices in which these precious metals are used. Electronic waste of gold. Recycle Gold pin connector circuit board. Gold Refinery Refining Gold Recycle Gold extraction. Teaching How to gold extraction process Recovery Refining How to recover and refine computer scrap with acid .Gold Refinery Refining Gold Recycle Gold extraction value of gold in cpu computer scrap circuits board.
Views: 3791359 Archimedes Channel
Empire Gold Mining Show Silver Ore Smelting
just showing how to smelt silver ore . Remember the only way to get pure silver is to use nitric acid . ok so here is what this ended up being galina like mineral lead with rhodium .
Views: 5320 Empire Gold Mining
Make gold extraction process refining recycle ic circuit boards connectors CPU old computer phone
You can donate to support us, to fund research and development. ►► https://goo.gl/bZDnWJ youtube Subscribe to this ►► Subscribe https://goo.gl/93XuWY ✔️ THANK YOU ✔️ Archimedes Channel http://www.goldextractionprocess.com How to Recover Gold from ewaste Electronic computer Scrap. recover and refine with acid If the mixed nitric acid and table salt can be readily dissolved gold. This is my new method is well suited for the extraction of gold at home! gold refining complete process for the home refiner. electronics gold recycle circuit boards connectors from old mobile cell phone. Teaching How to gold extraction process Recovery Refining From Electronics Waste CPU recycling old computer scrap. At Chips Etc. we often get inquires into what is the value of gold found in vintage computer chips and other electronic items. How to Recycle Gold From Old Computer Cpu mobile phone recycling process. There is very little profit from extracting the gold content found in most computer chips and electronic components yourself unless you have significant quantities of them to be processed. Refining Gold & other precious metals (including silver, palladium & platinum) from CPU's & electronics is typically not profitable unless it's done professionally and in large quantities on a large scale; when processing just a few items the cost is often higher than the value of the gold that is reclaimed. More importantly, the process of refining gold involves working closely with hazardous materials including nitric and hydrochloric acids, as well as Mercury, and should only be performed safely by experienced Gold refiners. gold recycle circuit boards, gold cpu recycler, recycle ic chips, gold recycling of ic chips, gold recovery ic chips, process gold refining. http://www.goldextractionprocess.com youtube Subscribe to this ►► Subscribe https://goo.gl/93XuWY ✔️ THANK YOU ✔️ Archimedes Channel
Views: 169427 Archimedes Channel
Gold Mining & Refining: "South Dakota Saga" 1941 Homestake Mining Company
Support this channel: https://www.patreon.com/jeffquitney Metals playlist: https://www.youtube.com/playlist?list=PL64F10A579EB0A526 more at http://scitech.quickfound.net/geology... "Gold mining and the life of gold miners in South Dakota, as seen by the mining company." Originally a public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original). https://en.wikipedia.org/wiki/Gold_mining Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/ Gold mining is the removal of gold from the ground. There are several techniques and processes by which gold may be extracted from the earth. Placer mining Panning Gold panning is mostly a manual technique of separating gold from other materials. Wide, shallow pans are filled with sand and gravel that may contain gold. The pan is submerged in water and shaken, sorting the gold from the gravel and other material. As gold is much denser than rock, it quickly settles to the bottom of the pan. The panning material is usually removed from stream beds, often at the inside turn in the stream, or from the bedrock shelf of the stream, where the density of gold allows it to concentrate, a type called placer deposits. Gold panning is the easiest technique for searching for gold, but is not commercially viable for extracting gold from large deposits, except where labor costs are very low or gold traces are substantial. Panning is often marketed as a tourist attraction on former gold fields. Before large production methods are used, a new source must be identified and panning is useful to identify placer gold deposits to be evaluated for commercial viability. Sluicing Using a sluice box to extract gold from placer deposits has long been a common practice in prospecting and small scale mining. A sluice box is essentially a man made channel with riffles set in the bottom. The riffles are designed to create dead zones in the current to allow gold to drop out of suspension. The box is placed in the stream to channel water flow. Gold bearing material is placed at the top of the box. The material is carried by the current through the box where gold and other dense material settles out behind the riffles. Less dense material flows out of the box as tailings. Larger commercial placer mining operations employ screening plants, or trommels, to remove the larger alluvial materials such as boulders and gravel, before concentrating the remainder in a sluice box or jig plant. These operations typically include diesel powered, earth moving equipment, including excavators, bulldozers, wheel loaders, and rock trucks. Dredging Although this method has largely been replaced by modern methods, some dredging is done by small scale miners using suction dredges... Gold ore processing In placer mines, the gold is recovered by gravity separation. For hard rock mining, other methods are usually used. Cyanide process Cyanide extraction of gold may be used in areas where fine gold bearing rocks are found. Sodium cyanide solution is mixed with finely ground rock that is proven to contain gold or silver, and is then separated from the ground rock as gold cyanide or silver cyanide solution. Zinc is to precipitate out residual zinc as well as the silver and gold metals. The zinc is removed with sulfuric acid, leaving a silver or gold sludge that is generally smelted into an ingot then shipped to a metals refinery for final processing into 99.9999% pure metals. Advancements in the 1970s have seen activated carbon used in extracting gold from the leach solution. The gold is absorbed into the porous matrix of the carbon. Activated carbon has so much internal surface area,[5] that fifteen grams (half an ounce) has the equivalent surface area of the Melbourne Cricket Ground (18,100 square metres (195,000 sq ft)). The gold can be removed from the carbon by using a strong solution of caustic soda and cyanide, a process known as elution. Gold is then plated out onto steel wool through electrowinning... The cyanide technique is crude and is commonly used in low grade gold and silver ore processing. There are many environmental hazards associated with this extraction method in addition to the high toxicity of the cyanide itself. An acute example was demonstrated in the 2000 Baia Mare cyanide spill environmental disaster when a break in a waste pond dam gold mine reprocessing facility near Baia Mare in northern Romania released approximately 100,000 cubic metres (3,500,000 cu ft) of waste water contaminated with heavy metal sludge and up to 120 long tons (122 t) of cyanide into the Tisza River...
Views: 1614 Jeff Quitney
Basic silver identification. What I look for in tailings and then slice 3 examples - - to see what they have inside. One is dendritic.
Views: 66427 meMiner
How to Refine and Melt Platinum - Tutorial part 1
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: 608521 indeedItdoes
Smelting Gold/Silver Sulfides Part 1: Testing Different Collector Metals For Gold Recovery
I wanted to show some of the experiments we are working on here at MBMM. I want to determine the best collector metal for recovering gold from black sand/sulfide concentrates when smelting. Using a basic flux and metallic iron we have been successful at eliminating the matte phase and ending up with two phases, slag and collector metal. The goal for this video series is to find out the best collector metals for gold and silver when smelting shaker table concentrates without roasting. Stay tuned for part 2
Views: 39073 mbmmllc
How to make gold 24k. Teach process gold refining 99.99%. tips refine gold scrap fine gold recovery.
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 ✔️ Teach how to refined gold 24k 99.99% fine gold recovery. Gold extraction Refined gold is gold that has been separated from any other metals or impurities. It is not an alloy. Anything metal that is not pure, is an alloy. Thus, for example, 18K gold is an alloy that is 18 parts out 24 parts pure. Refining gold is scientific process. It involves chemistry and metallurgy. How to make gold process gold refining 99.99%. tips refine gold scrap. #MakeGold #ArchimedesChannel
Views: 578966 Archimedes Channel
HOW TO REFINE PURE GOLD ||  Gold extraction
HOW TO REFINE PURE GOLD||Gold extraction Gold Refinery Refining Gold Ornament Gold extraction One of the methods of converting gold from gold ornaments to pure gold. use method (example) gold ornament weight =1gm and pure silver-2gm Gold and Silver must be swallowed together.then used Nitric acid Gold ornaments weight + double pure silver weight =24 ct pure gold please subscribe my channel https://www.youtube.com/channel/UCgchmvbatdwkxAvqka8kTIQ
Alaskan Placer Gold Silver Button Refining
To contribute: https://paypal.me/sreetips?locale.x=en_US I refine the silver button from the Alaskan Placer Gold video
Views: 2309 sreetips
Crushing hi grade gold ore to melt a gold bar
This is some Hi Grade gold ore that I crushed to get the gold out and make a bar. I kept some of the gold in its natural state to sell as a gold specimen
Views: 313492 Dave Varabioff
How to Refine Precious Metals - Electrolysis: Hydrometallurgy Part 4
This video shows the refining process steps using electrolysis of precious metals used by professional refining companies. Silver, Gold, Platinum, Palladium and the other platinum group metals. Electrowinning and electrorefining are presented. Part 4 will focus on the hydrometallurgical electrolysis processes. ipmi.org
Views: 108842 TheIPMI
Silver refining process with emew
Offering the original 'vortex' emew electrowinning and green technologies for a variety of applications in mining, refining, and environmental sectors. Silver refining demands technology that can offer the highest purity coupled with advanced security features and low working capital or Work-in-Progress. Silver purity exceeding 999.99 (also referred to as 5N’s) can be achieved with emew. No other technology can produce this purity of silver in the presence of impurities such as copper, lead, selenium and others. A completely enclosed system, emew eliminates acid mist and promotes a safer environment for operators and management. The emew silver refining system is low maintenance, worry-free, and fully automatic with minimal labour requirements. The high purity silver powder is automatically harvested using a flush through technology to a single collection point ensuring the utmost security, with no losses and simplified metallurgical accounting. Our website: https://emew.com Free technical documentation: https://emew.com/downloads/
Views: 411 emewCorporation
Heap Leaching of Gold and Silver Ores
HEAP LEACHING OF GOLD & SILVER ORES Heap leaching is the process to extract precious metals like gold, silver, copper etc, from their ore by placing them on a pad (a base) in a heap and sprinkling a leaching solvent, such as cyanide or acids, over the heap.. This process dissolves the metals and they collect at the bottom of the pad. The metal is then further processed. This methodology is mostly used for low-grade ores, and the basic processing steps involve crushing and sometime grinding.. The stages for heap leaching can be described as: 1. Ground Preparation and pad construction: Here the soil on a slightly sloping ground is compacted and covered by an impermeable pad (can be made of plastic). 2. Ore stacking: Then the crushed ore is stacked in the form of big heaps. Amount of fines is decreases as low as possible to improve permeability. 3. Then the leaching agent such as cyanide or acid is sprayed over the heap. 4. As, the reagent passes through the heap; the valuable metals get dissolved in it. 5. The solution containing metal is drained from the heap and collected in a pond and the solution is sent for subsequent process for metal recovery.. Is there any investors who are interested to cooperate for gold mining area in my village, actually typical of the material in my village is good proses by Heap Leaching Method process.. E-mail: [email protected] Cell Phone: +62-821-8827-6807
Views: 6863 Muhammad Murjani
Smelting and Gold Refining Part 2: Electroplating copper to recover gold and silver
This is a continuation video on our smelting series of videos. In this video we use a solution of copper sulfate and sulfuric acid to electroplate (electrorefine) out our copper collector metal and leave us with the precious metals in the form of anode slimes in the bottom of the refining vessel. After we have collected the anode slimes we can then smelt them into a gold/silver dore which gives us a higher value product than selling the copper/precious metals to a refiner.
Views: 39310 mbmmllc
Non-Toxic Gold Extraction | Research at Curtin
Curtin University scientists solve a century-old problem: how to refine precious gold and silver without using highly toxic cyanide. Discover http://curtin.edu.au/research
Views: 11226 Curtin University
This gives the assurance that the bar contains the quantity and purity of gold as stamped on the bar. It involves removing impurities that remain after the smelting process. Refining companies receive doré bars, as well as scrap gold, and reliquefy the metal in a furnace. Workers add borax and soda ash to the molten metal, which separates the pure gold from other precious and less precious metals. A sample is then taken to a lab for tests, or assays, that measure the gold content. In most cases, the gold is 99.9 percent pure. Workers cast the gold produced during refining into bars.This information is from different site for my study purpose.
Views: 49300 Rajesh Kumar V
A-Z Documentaries - Precious Metals - Gold, Platinum, Silver, Steel etc
A precious metal is a rare, naturally occurring metallic chemical element of high economic value. Chemically, the precious metals tend to be less reactive than most elements (see noble metal). They are usually ductile and have a high lustre. Historically, precious metals were important as currency but are now regarded mainly as investment and industrial commodities. Gold, silver, platinum, and palladium each have an ISO 4217 currency code. The best known precious metals are the coinage metals, which are gold and silver. Although both have industrial uses, they are better known for their uses in art, jewelry, fine jewelry and coinage. Other precious metals include the platinum group metals: ruthenium, rhodium, palladium, osmium, iridium, and platinum, of which platinum is the most widely traded.[1] The demand for precious metals is driven not only by their practical use but also by their role as investments and a store of value. Historically, precious metals have commanded much higher prices than common industrial metals.
Views: 3555 A-Z Documentaries
Refining of Silver and Gold
extraction of gold and silver
Views: 11559 AQILMKHAN

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