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<p>[QUOTE=&quot;LostDutchman, post: 2012842, member: 16994&quot;]I get a lot of scrap gold and gold filled items at the shop. We usually take the scrap gold 10k, 14k, 18k, ect. to our refiner and they process it. The gold filled was piling up and my refiner wont take anything but large quantities so I decided to start looking around for ways to process it to a level where I could take it to my refiner.</p><p><br /></p><p>I am using the aqua regia process to chemically disolve the gold filled and then reconstituting the solid gold back out of the solution using Sodium Metabisulfite to cause the pure gold to reconstitute.</p><p><br /></p><p>If there is enough interest in this thread I could do a write up of the entire process. So let me know if you want to know how it&#039;s done.... it&#039;s hazardous and dangerous so I don&#039;t recommend doing this unless you really plan on being safe about it. There are some good walk through websites out there.</p><p><br /></p><p>Till then I leave you with this. Discuss.</p><p><br /></p><p>[ATTACH=full]362906[/ATTACH][/QUOTE]</p><p><br /></p>

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