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Slow Roast Sweeps process — material is processed separately ensuring nothing is lost. Low Grade Process. We can remove stones from gold, platinum or silver and get them to you sorted, cleaned and ready for sale without any use of cyanide.

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We can recover even the smallest melee with our process. Direct-Buy Diamond Buying: While we do not purchase and resell your diamonds, we can present stone lots to North American diamond buyers for bids.

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Meltable services include karat gold, casting sprues, buttons, miscasts, wire, foil, alloys and bench grindings. Low-Grade Processing: Our furnaces eliminate any precious metal loss. Solutions Recovery: We offer recovery services with no material loss, reduced variability and the ability to recover even trace metals. You can save more than 50 percent on refining and associated fees.

This process produces gold to a purity of The key output of the chlorine refining process is silver chloride, which enters a silver leaching process to remove the base metals. The silver chloride is then reduced to metallic silver and is then refined by electrolysis. If there is demand in the market for a higher purity gold, then the The anodes are placed into a bath of hydrochloric acid and an electric current is passed through it, which causes the gold to dissolve and then deposit on a cathode at purity of The resulting cathodes are melted, granulated and the then granules are used to measure out exact weights of gold for casting into bar sizes from kilo As with gold dore, the silver dore is weighed, melted, assayed and outturned.

How to Refine Precious Metals - Hydrometallurgy: Part 1- Leaching

The electrolytic silver refining process is similar to gold, except that the silver anodes are dissolved in a bath of nitric acid. The resulting cathodes are