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refining gold process with washing machine for slag removal

refining gold process with washing machine for slag removal

Gold(along with silver) is then precipitated with zinc dust according to the reaction: 2KAU(CN)2 + Zn = K2Zn(CN)4 + 2Au Thegoldprecipitate is then filtered out of the solution, mixed with fluxes and smelted to form crude and impure bars which are sent to arefinerytoremovethe copper and silver, theprocessused depending on the impurities in thegold.

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