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https://www.specialtymetals.com/blog/2021/2/4/how-to-separate-the-gold-silver-and-platinum
Feb 04, 2021 · Thermocouples If you have a quantity of thermocouple wire that contains silver and/or other precious metals, we can apply high heat to them to separate out the metals they contain. (Note that there will probably also be copper, sometimes tin, and other secondary metals.)
https://www.starcojewellers.com.au/h-jewelry/how-to-separate-gold-from-other-metals-in-jewelry.html
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Aug 05, 2011 · Separating gold from other metals 2002. I have a bunch of "old gold" laying around and I've decided to melt it into something else. I would like to separate the gold from the other metals in the pieces of jewelry to make it more pure. How can this be done? David Hann - Corner Brook, NF, Canada ^
https://www.doityourself.com/stry/how-to-separate-precious-metal
Apr 13, 2011 · Continue to heat the slag until you can observe the molten gold begin to dissolve away from the rest of the slag. This occurs because of the melting point and the density of the gold as compared with the different melting points and densities of the other metal components of the slag. The gold should slip down into the smelting vessel.Estimated Reading Time: 3 mins
https://www.finishing.com/238/42.shtml
May 27, 2009 · 1). One way is by 'panning'; since gold is heavier than most other substances, you can swirl water just fast enough that the gold stays in the pan while the other substances wash out.
https://www.leaf.tv/articles/how-to-take-the-impurities-out-of-gold/
The lead combines with other metals and forms oxide compounds that separate from the gold. This process works best with small quantities of gold ore. Submerge the unrefined gold in a mixture of nitric and hydrochloric acids. This method will dissolve the ore and separate the gold from the impurities, which can later be washed away.
https://www.911metallurgist.com/blog/gold-smelting-at-home
Mar 08, 2015 · Extraction of gold by smelting is done with metallic mix gold. Scrap gold, jewelry gold, With gold components for more than 25%. Not suitable for metal gold plated surfaces. If you want to do.Estimated Reading Time: 4 mins
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