201157 · Here is what i did. What i usually do is i burn the polishing waste from my gold factory. I use red rouge for polishing. After burning, i then sieve the materials using a size 40 sieve. I get about 2.5kg of the sieved material and mix it with 50% assay grade litharge (1.25kg) I mix in 400% borax (10kg) I melt this material in my furnace and add ...
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view more2009107 · Wrote a new tutorial demonstrating the complete refining process of silver from scrap sterling silver via the AgCl method.
view more20231227 · I was given 2 kilos of RF connectors that would have normally been soldered on to a board. They have very heavy gold plating that completely covers them. So there is no exposed base metal (copper). My concern is that AP wouldn't be able to attack the underlying metal and release the plating. And...
view more2016728 · There is much talk of burning gold activated carbon. That is very difficult but if first ground and form a pellet in the following proportion can be performed easily. The coal is agglomerated with a mixture of. 5 liters of water. 600g of sodium nitrate. 200g maltodextrin. The pellet dry and burn easily. Good luck.
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view more2022123 · Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. Any questions about other precious metals.
view more201281 · I am new to refining have an recently disemboweled a cell phone and have ended up with many gold-plated contacts and pins. I don't have the means to use chemicals neither do I want to, but I can melt gold. I am wondering how to separate the gold plating from these pins/contacts effectively...
view moreGold Refining, Recycling, Recovery Machines. We build complete systems and teach how to operate through operating trainings. We provide know-how and consulting services. We design and produce all kinds of machines and equipment using plastic materials (like corrosion proof, pp, pvc) and metals (like stainless steel, titanium ), on which we have ...
view more202344 · Newbie here. I am trying to determine on my needed smelting method for raw gold from the field - propane torch with ceramic crucible and borax flux or gold smelting furnace, graphite crucible and borax flux. I got the story with the small inexpensive ceramic crucible and either scraping out...
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