Help Support Gold Refining Forum: ... As for the use of lye, I'd rule that out. When you shift a solution from acidic to basic, anything in solution will precipitate, so the selective precipitation so highly desired (for refining) is lost. ... Its a waste of time to leach 50 pounds of black sand if the best you might do is recover 1/1000 th of ...
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A mercury-gold amalgam then is formed because gold will dissolve in the mercury while other impurities will not. The mixture of gold and mercury is then heated to a temperature that will vaporize the mercury, leaving behind the gold. This process does not result in gold that is pure, but it does eliminate the bulk of the impurities.
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But there's no way to gauge just how strong your homemade caustic is, which can leave you with lye-heavy bars. It's really much easier (and safer) to buy lye. I've made soap for years, and have never made my own lye. And, unless the apocalypse hits and I'm in desperate need of some soap, I never will make my own lye. ...
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You will need a plastic gold pan, distilled water, lye, an ounce of mercury, nitric acid, a Pyrex measuring cup, safety goggles, rubber gloves, and a rubber apron, a flat copper bar or sheet of copper, and assorted sizes of gold vials.
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What kinds of materials can you refine yourself? Circuit boards and electronic scrap ("e-scrap") Jewelry, both regular jewelry and gold plated; Gold nuggets, black sand and flour; Catalytic converters, which contain platinum group metals (platinum, palladium, and rhodium) ... The white silver chloride is then oxidized by adding sodium hydroxide ...
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You can mix the gold ore with sodium cyanide, which will attach itself to the gold and separate other elements such as zinc. Or pan the gold manually in water to separate gold from the gravel and sand in a stream. Refine the gold you have extracted and separated. Use Miller and Wohlwill processes, which process gold chloride by …
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Once you have eliminated as much black sand as possible, you can use a suction bottle to transfer the gold particles into a vial. You can also pick up larger flakes through tweezers. Conclusion. Panning for gold can be an exciting activity that can also turn out to be very profitable, especially as you refine your panning skills.
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Sand panning for gold is similar to traditional gold panning, but instead of focusing on gravel, you must find suitable sand to extract gold. Black sand formed by iron metals such as hematite or magnetite is often a good indicator of gold presence. They can be found at beaches or placer deposits of river beds and streams.
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Thanks for the input. I need all the help I can get. Sam has suggested using Nitric acid for the Pd, which will require evaporation. Using HCl/H2O2 for the Pt will eliminate the use of nitrates when dissolving the Pt. Today I added nitric acid and H2O to a little of the black powder in a spot plate.
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If you are working with a large amount of lye, it is also important to wear an apron. #5 – Always Use The Proper Tools And Equipment When working with lye, you should always use the proper tools and equipment. If you are using a large amount of lye, it is important to have a container that can hold more than 10 gallons of liquid.
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What is Lye? Lye is a strong alkali, commonly known as sodium hydroxide.It is a caustic substance that can cause severe burns if not handled properly.Lye is used in various industrial applications, including the production of soap, paper, and textiles.. The Role of Lye in Bagel Making. In the context of bagel making, lye plays a …
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Soap made using lye may be formed using molds or cut into bars or other shapes. Most pure lye is w hite, allowing for the addition of dyes without diluting the hue. However, some lye may be off-white, yellow, or gray. …
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I have seen a few articles describing gold in pyrite. 70% of the gold now being procesed is in a sufide form. gold pyrite is paramagnetic and will only respond to a very strong magnet. you can make gold pyrite magnetic by roasting it in open air to dull red heat. this changes it from a sulfide to a oxide and makes it magnetic. also it drives off …
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Aqua regia is used to dissolve the gold into solution (the acids remove electrons from the gold atoms) and the gold forms a dissolved solution of yellow colored gold ions (a dissolved salt of gold), this also dissolve the very little metal impurity that the nitric could not get to, the nitric acid content of the aqua regia acts as an oxidizer ...
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A gold-iron phase diagram derived from the data of Seigle (1956) is shown in figure 5, and illustrates a number of features important to removing iron from gold. Firstly, no more than 27% Fe can be tolerated when the gold melts to avoid inclusion of refractory high-iron solid phase components in the bar.
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From my knowledge so far, Lye (NaOH) won't dissolve gold. But it will convert dissolved gold into a solid again. It will either make Au(OH)3 or sodium aurate (NaAuO2). It will make sodium aurate when you put in too much NaOH.
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Now, let's get into the specific ways that you can use to refine and purify gold. ... For example, you can use the Aqua Regia refining system, which has a knack for dissolving gold and weeding out the impurities. Important note: This method involves handling corrosive acids and doing reactions that produce deadly fumes. Make sure to use ...
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As the gold accumulates around the outer edge of the pan, you can use a snuffer to remove the backline of gold and then continue refining the black sand with gold. How To Use A Magnet To Remove Gold From Black Sand. Before using a magnet to recover gold from black sand, the sand must be completely dry and powdery or …
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What Is Black Sand? Black sands are concentrates of heavy materials that can be found in the streambed. These elements can be found near most creeks, rivers, or streams, but the composition of the concentrate might …
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How to Refine Black Sand | eHow. Black sand, also known as concentrate, consists of a variety of fine grain particles which are leftover residue from gold mining.Black sand can be magnetic … » More detailed! How to Use Lye to Refine Gold | eHow. How to Use Lye to Refine Gold.Lye is a common name for sodium hydroxide (NaOH) … Melt …
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Without the gold, the worth of the black sand can be estimated by analyzing its composition. Even though most people want to retrieve gold when looking to process their black sand concentrate further, it should be noted that it could contain many other valuable precious metals, such as platinum and silver.
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For every ounce of scrap gold you are going to refine you will need a capacity of 300 milliliter. So, for example, if you are refining 10 ounces, you need a 3,000 milliliter (3 liter or 3 quart) container. 3. Add your reagent to the container. If you are using nitric acid, add 30 ml to the container for each ounce of metal.
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Hi Charlie, first thing to do, is screen the concentrates into particles of a narrow size range, then run them trough a clean up sluice to get the gold as concentrated as possible. Also, it is easier to do than chemicals. Now after running though a sluice you can start to develope a process for recovering the gold, but, with proper seperation you …
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Learn how to use Geobrom 3400, a liquid bromine carrier, to leach gold from black sand concentrate. The web page also explains the kinetics of gold extraction and …
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Learn how to use nitric acid or its substitute MX3 to dissolve and recover gold from scrap metal. Follow the step-by-step instructions and safety precautions for this process.
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You can use homemade lye just like you would with any soap recipe. If you are using my how to make soap recipe, just add the two amounts of the lye and water together. So then it would be one cup total (¾ cup water and ¼ cup lye). If you are using weighed amounts, add the weights of the lye and water together and use this amount.
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Black Sand Magnet. If you have concentrated your material down to just black sand and gold, a magnet could be of great help. Since black sand mainly consists of magnetite and hematite, which both are magnetic, a magnet can be used to attract the black sand and leave the gold behind. Now, just picking your old horseshoe magnet won't do.
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You should see if it can be panned out gently in a gold pan, if so, then you should be able to sluice the material through a "beach box" which is a wide sluice with a thin veneer of water designed to extract gold from beach sand, tropical soils also typically carry very fine grained gold and they use a similar setup with two layers of burlap ...
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Learn how to determine if your black sand contains gold and how to extract it profitably. Find out the sources, methods and costs of black sand gold refining.
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ZINC-DUST PRECIPITATION OF GOLD. For many years precipitation by zinc dust, as by the Merrill-Crowe process, has been recognized as the most efficient and economical method of precipitating gold and silver from cyanide solutions.Embodying precipitate filters of the plate-and-frame type, of the vacuum-leaf type, or of the more …
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Separate the gold from unwanted rocks and minerals using one of several methods. You can mix the gold ore with sodium cyanide, which will attach itself to the …
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It did not smoke on melting so it definitely wasn't Silver Chloride. My guess is he made Silver oxide which, before melting breaks down to Silver metal and O 2 You can get the same result by adding liquid caustic to the Silver Chloride and melting the resultant Silver oxide. Easy to tell when the conversion is complete as the Silver oxide is black.
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You don't use lye and acid together, that would be a big mistake. ... Very fine particles of gold like brown or black powdered elemental gold (like cemented gold) or very fine flakes of gold will normally settle to the bottom of a vessel, unless the solution is dirty with things like oils from your hands, dirty solutions from circuit boards ...
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