Discover the intricate process of refining gold, from ore preparation to the final purity checks. Learn about the two main purification methods, aqua regia and electrolytic refining, and their …
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I am doing tests with a gold ore sample that contains a high content of copper, around 270g/t. I am studying to do a pretreatment with some reagent to block this copper before a cyanide leaching process. Does anyone have a suggestion of what I can do? If I do a direct leach, the copper is all available together with the gold.
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After smelting, I can get a general idea of how much gold I have by dissolving some of the iron with nitric acid, a messy bit of work. Mixed in with the flour gold (post grinding), I can see chunky, shiny, bits of higly reflective silvery material along with pyrite. Not sure if there is gold entrained with the pyrite.
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My question is, and maybe for people just starting up, is the first step is to get a assay of your ore. Of course every expert or tradesman in the business on this forum needs to start with that to answer novice questions about "end of rainbow" dreams of gold. A lot come in the forum ask "I have X product how do I get the X valued material out?"
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The gold is mostly in the ore with a small amt in the dirt. We've been using SSN, butyl and oxalic to recover it, as well as a thiosulfate leach, but the mud that's created makes it very difficult to filter and recover all of the leach, especially in the SSN leach.
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Refining jewelry or scrap gold that has already been refined from ore, but is in a less than pure alloy can be done at home. First collect old rings, necklaces, earrings, dental …
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Larger ores will have to be sledged/jackhammer down to this size. The jaw will be rocked by an eccentric camshaft that's powered by a 2 hp electric motor. ... 4 Hole Sizes Metal Silver Casting Melting Templates Ingot, for Melting Casting Refining Gold Silver Copper Aluminum Brass Precious Metals DerJingX. $99.49. kececo Smartwatch, Built-in ...
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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 chloride (2 x 303.325g ) or 606.65 …
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You're referring, of course, to the provision in the 2009 Mining Law which required primary ore to be processed in-country, effectively banning export of unprocessed ore (not just galena) from 2014. You might be pleased to hear that this provision was postponed last week until 2017, with partial bans coming into effect in stages until that date.
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Gold refining might come across as some serious rocket science, but trust us, with the right techniques, it's totally doable. In this guide, we've cruised through 3 pretty straightforward ways to purify gold: Using a refining kit; Purifying gold using electricity; Gold-melting furnace;
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Hello Refiners, I am new to refining and wanting to learn more, recently downloaded Hoke's book from one of Lasersteve's posts in this section. Anxious to start reading, I tried to go through and read it in its' current format, which was made to print with 2 pages per sheet. I tried to print...
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Common impurities found in gold ore include silver, copper, iron, and sulphur. These impurities need to be separated and removed through various refining processes to obtain pure gold. Refining Process Steps to Follow. The initial …
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I have access to some of the richest rhodium ore on earth. I have 300 pounds of this material at my house right now and can get tons more. This material comes from the South American "platina belt" and is material the Spanish tried to smelt and couldn't do it. Finally they abandoned millions...
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Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. jadedalex Active member. Joined Feb 20, 2017 ... They smelted silver-lead ore into a metal mix, then did a giant cupellation to separate the lead into the giant cupel and recover the silver left behind, then they ...
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Extracted gold rarely has adequate quality to avoid a refining process----depending on the objective of the individual at hand. Some guys may enjoy recovering and are happy to melt and sell. Others, with an objective of producing the best possible quality, understand that even one refining is generally not sufficient.
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The ores containing Native Gold erode due to weathering, and as the encasing rock breaks down, it produces Elluvial Placer Deposits (Bench Placer). These deposits form on the slopes of hillsides where a depression or wide level spot occurs downslope of the eroding In Situ (In Place) Hard Rock Deposit from which the gold is eroding from.
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Depending on how much silver you used as a collector to the amount of platinum or platinum group and gold in the ore, can make a big difference in how these would react to some acids later, or if you used enough silver to make very high silver percentage of silver anode, the PGM and gold could be collected in an electro-refining cell as anode ...
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Further, you don't really want to leave them in gold, for each of them toughen gold considerably. That's why they're used in dental gold. Once alloyed with gold, the gold is not very desirable for use in jewelry. In order to process platinum group metals, you almost have to get involved in silver refining----assuming your source is dental or ...
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Some miller table tips, links to buy a nice one for $125 and a link to build your own. thinking of building one if i ever get a big supply of IC's (right now i only have a couple pounds). panning is a pain without a river of water, and just a pain all around for IC concentrate. the tips below are for gold mining concentrates and not exactly eScrap but i think the principles are …
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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 Colorado? Harold
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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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I have about 20 gold ore specimen that are from Australia. Some are gold in quartz, but most are gold in dark brown rock. The gold is clearly visible in all specimen.
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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 …
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Washed it according to Gold Refining Forum. One refiner sent back a tiny bead which I had XRFed locally as 60% Au. ... I used HCL with H2O, at pH3, 90 degrees plus a T-6 sulfur process from GoldMineWorld circa 2008. Strained out ore and precipitated gold with FeSo4 (Iron Sulfate). Washed with hot water, boiling HCL, washed with more hot water ...
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Gold refining transforms raw gold into pure, valuable metal. This process involves several steps and requires specialized knowledge and gold refinery equipment. Understanding …
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1) How should I refine/purify any metals (particularly gold) that may be present both in both flakes/plates and within the solution? 2) What material should I use to filter the flakes? I fear the solution will disintegrate a coffee filter, and I don't want to make a mess.
WhatsApp: +86 18221755073I am trying to figure out the steps to smelt gold ore, which contains also silver, copper and platinum, into something I can sell. The ore has been assayed @ 60 ounces per …
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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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The recommended flux recipes in refining are: 1) Mostly gold concentrates, heating at 1980F: 2 parts Borax 1 part Sodium Carbonate 1 part Manganese Dioxide 1 part Silica 1 part flourospar ... (This lead me to believe that ore from that mine had a lot of that type of that material in their ore). fluorspar would be harder on most crucibles ...
WhatsApp: +86 18221755073I sent off several ore samples for assay. They done six assays three on the head ore, one on the 20mesh, one on 50mesh and one on 100mesh. What we found was the head ore yielded just over .5 ppm until the 100mesh. It yielded over 15ppm. My question is; Do you guys think this assay is good...
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