can someone explain me how stannous chloride work | Gold Refining
ericrm, I do not know if I can answer this, but here is how I see it. The tin chloride (stannous chloride) does reduce the gold (gold from solution gains an electron), and goes back to being a metallic gold, the gold does not precipitate (at least not for a very long time), as this tin kind of makes a gel in solution holding the very small fine flakes of …
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Gold from bleach,vineger and hydrogen peroxide | Gold Refining …
The gold is not dissolved gold ions, but gold metal atoms locked up as a gold compounds chemically in the carbon based concoction. if tin (from solder) was in the metals which also were dissolved, the gold is no longer gold ions, but atoms of colloidal gold locked up in solution in the carbon based mess, most likely along with lead acetate …
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As simply as possible; where can I get ORE assayed? | Gold Refining
Depends on the ore, Lou. I processed one that ran in excess of 300 ounces/ton gold. Run the numbers on that and the 3% doesn't look all that unreasonable. It should be noted, in the ore I ran, gold was readily visible to the naked eye. I would expect that with 3% ore, it would be obvious. I wonder----was the ore in question from …
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dissolving rhodium
When working with ore and its complications of the chemistry involved, it can be much different than working with more pure metals or scrap in recovery, most every mine with their ore, the chemistry involved in the ore, and the chemistry involved in recovering values from the ore can be different, here some of the solvent extraction's or ...
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recovery of gold from ores with chlorine in 1898 | Gold …
From "Getting Gold: A practical treatise for prospectors, miners and students" Written by J.C.F. Johnson, F.G.S. (1898) The most scientific and perfect mode …
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Gold in Arsenopyrite
Hi-I have some gold ore (that I can get a LOT more of) that is roomered to contain 16+oz of gold per ton. Im getting an assay, but until then I would like to know a good way recoverying the gold out of the ore if it proves to be worth while based on the assay. It is arsenopyrite, It contains arsenic, Iron, Gold, and cobalt to my understanding.
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Cannot precipitate gold from HCL and bleach | Gold Refining …
Just remember, there is hardly any gold in the first place so don't expect much from just a handful of glassware. I have washed gold from well over 100 pieces and barely have a couple grams to refine. I will use just enough HCL to stand plates in the container and just cover the gold trim.
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Can a metal detector help in finding Galena ore? | Gold Refining
The only galena ore I have ever seen was a solid piece of metal. Since it is lead I would assume it should be easy to find, if you have the right detector. My XLT would find it in a heartbeat (if it reacted the same a lead sinkers) I …
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How do I refine "Hi Sulphide Ore"?
Paige, I'm no expert on refining ore, but the idea behind heating is to drive off the sulfur before processing. I have a prospecting book at the house that has some testing procedures for sulfide gold ores. I'll post some realitive information when I get home here in a few hours. Steve . Reply. P. Paige Well-known member. Joined Mar 18, 2007 ...
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Crushed ore-microscope pictures-help please | Gold Refining …
I should crush up that ore from the first vein and take micro pics of the panned minerals in it also. The reason I chose to crush the other ore from the sedimentary vein and take the micro pics of it is because it broke up very easily and the cracked surface looked so mineralized with all the pyrites etc.
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refining gold with a propane forge
This is the best information i could get. Please help me to refine this ore . I need some help with a propane forge to smelt out the gold. Ventilation is no problem, got a large roll up door and fans. i need to know what kind or borax and flux to use. How much of each per ounce of crushed ore. I am building a rock crusher and 4" diameter forge.
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Bernzomatic
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. J. jmdlcar Well-known member. Joined Jul 19, 2011 ... Prospecting, Mining, Ore & Geochemical. Hi newby here, I'm wanting to start up a leaching process using Jin Chan and carbon, so far I have the …
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Blue Clay
For the record---in all my years of refining, I never, ... The gold ore of which I speak was purchased (most likely under the table) from a mine known to produce high grade gold and silver ore. I related a tale some time ago that parallels this one, and the ending was sad. Three men worked a claim for a few summer months, resulting in one …
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Separating gold from quartz
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. A. Agmix Member. Joined May 5, 2017 ... we are talking about smelting ore concentrates that are primarily gold/silver ore with "maybe" some traces of PGMs When melting a combination of metals (in a smelt) ...
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rhodium dissolution
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. A. arthur kierski Well-known member. Joined Feb 10, 2008 ... Ore & Geochemical. G. If you are serious about refining, this is a good read. Latest: galenrog; Saturday at 9:55 PM; General Gold Refining …
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Arc Smelting Precious Metal Ores Concentrates
Hi Folks, Would any forum members help provide some guidance to me on; 1. smelting different PM ore types. 2. dealing with refiners. 3. doing inhouse chemical intermediate refining before sending to big boy refiners 4. uses of fluxes to get lower melt temps 5. uses of fluxes to get separation of pm from non-pm metals 6. finding folks that …
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Processing arsenopyrite gold ore
I want to personally "Thank You" for deciding to post your questions to the open forum :!: Its what this forum is all about - the open discussion of ALL aspects of the recovery & refining of gold (& other PMs) so that we can ALL benefit from the questions & answers of the open discussions in this field - regardless of the source the PMs are …
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Precious Metal Refining Using Hydrochloric Acid
A General Outlook for Hydrochloric Acid Use. Hydrochloric acid, an extremely powerful and highly caustic compound, has been indispensable in the purification of metal and precious metal extraction. …
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Gold processing
Gold processing - Refining, Smelting, Purifying: Gold extracted by amalgamation or cyanidation contains a variety of impurities, including zinc, copper, silver, and iron. Two …
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Extracting Gold from Ore by Aqua Regia method
Oct 4, 2017. #17. Step one is to have the ore tested by Assay. This will tell you if there is actually gold in the ore. What you have is quartz, one of the most common minerals on …
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GOLD in SAND refining
Some of the particles float when panning, so I am looking for a quick way to get the gold from all the other useless stuff. We did pan a few pounds of the sand and ended up with black sand then removed anything attracted to a magnet. We are left with a black sand with LOTS of gold like...
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Use of Nitric to get rid of base metals | Gold Refining
Roasting sulfide is a must, adding iron (like nails) to the roast can help to convert the sulfides and drive off the sulfide as SO2 gas, sulfide can lock up you're gold in the ore keeping a leach from getting to it. sulfide can be handy when concentrating the ore as they like to float in a froth of air and oil, but for leaching sulfides are trouble.
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Using mercury to recover gold from plated pins | Gold Refining …
As the others mentioned, using mercury for gold recovery on pins isn't a good idea. You're right, it will amalgam with gold but it also bonds to copper, lead, tin and others. And the process you propose will work to some degree. What you'll end up with is a soup of metals and the task of trying to figure out a way to separate them.
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Gold Ore and Bleach Insight
Trying to adapt the HCl/Clorox method, designed for refining gold, to leaching gold from ore is a waste of time. Plus, you will lay out more money in acid to try and remove base metals from ore than you will likely ever hope to recover from that ore in gold. Most patents show leaching with sodium hypochlorite to be done at a pH closer to ...
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Getting silver from Galena
Hi all, I've just found a local mine which is stated to assay for silver at 900 oz/ton - or 3%. Ie every kilo of ore, contains an once of silver This seems very economical to me for processing but I'm not sure how would be the best way. What I'm thinking is first separating aragonite/calcite host rock by grinding, Then using the latest method for …
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Documented Gold Bearing Telluride/Oxide Ores
Auriferrous ores contain Silicate, Vanadate, Sulfate, Nitrate, Phosphate, Carbonate, Hydrate, and Arsenate compounds as secondary inclusions. Common Telluride ores are: Calaverite - can assay from 20- 70% gold and it is easy to recover Hessite - Resembles Petzite. Usually about 60% silver Petzite - A telluride that is mostly silver. …
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Sulphuric Acid AP | Gold Refining & Metal Extraction Forum
You basically made a "Piranha solution" or "Peroxomonoschwefelsäure" as they might say in Germany. A typical mixture is 3:1 concentrated sulfuric acid to 30% hydrogen peroxide solution; The resulting reaction it called Peroxymonosulfuric acid or Caro's acid H2O2 + H2SO4 ⇌ H2SO5 + H2O However do take note of it's Dangers; 8) …
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How Gold Is Refined: A Step-By-Step Guide
It might surprise you to know that gold jewelry isn't all pure gold. Because of this, a refiner must assess the material to calculate what percentage pure gold it is. The reason that gold jewelry isn't always pure gold is that gold is soft. To make it harder and stronger, manufacturers use other metals such as platinum, palladium, silve…
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planning to use aqua regia on ore
Aqua regia on ores is not suitable. 0.2-0.5% cyanide solution is used in industry. Healthier altenative is to use 0.5 % of thiourea mixed with about the same amount of Ferric Sulfate Fe2(SO4)3. Yet another option is 0.2% of …
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Help with HCl and Bleach
2Au + 6HCl + 3NaClO --> 2AuCl3 + 3NaCl + 3H2O From the equation theoretically, two moles of gold (2 x 196.97 grams) or 393.94 grams of gold will react with six moles of HCl acid (6 x 36.46g) or 218.77 grams of HCl and three moles of sodium hypochlorite (3 x 0.0134g) or 0.0402 grams of NaClO -----> to yield two moles of gold …
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