Cupellation is a process where ores or alloyed metals are treated under high temperatures and controlled operations to separate noble metals, like gold and silver, from base metals like led, copper, zinc, and others present in the ore or alloyed metal. The process is based on the principle that precious metals do not oxidize or react chemically, like the base metals; so when they are heated at high temperatures, the precious metals remain apart and the others react forming slags or other compounds. This process has been in use since the Bronze Age and still used today able to raise the gold and silver content to 95%, however the process cannot separate silver from gold, but this is good enough for me.
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Mr. Ree 11 year s ago
Don't forget to take into account how much you spent on chemicals and tools. I bet you lost money.
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pitterpat 11 year s ago
Yup, not to mention the investment of time it takes to extract so little yield.
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Cancamuso 11 year s ago
I think he might be a jew or a gipsy. And I'd say a jew because gipsies'd steal it.
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gigantes 11 year s ago
going around for three months scavenging old electronics, then slowly giving yourself cancer by use of the stripping chemicals...... yea, i think i'll pass.
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hbmaciel 11 year s ago
And I think in the end that little thing in his hand is mostly not gold. Because the golden aspect of those circuit contacts is merely a few atoms transfered to the surface of the copper.
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Escape 4 year s ago
haters, you people should be ashamed of your hater attitudes, this person went out of their way to teach others some knowledge they have, thank you computer recycling person for sharing your knowledge with me
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