High and New Technology Industrial Development Zone, Zhengzhou, China
copper ore gold ore extraction equipment with
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copper ore gold ore extraction equipment with

The Hunt method-calls for the direct treatment of theorewith a solution of potassium cyanide to which ammonium hydroxide has been added. Thegoldis thus extracted together with somecopper, and the metals are recovered by electrolytic precipitation, thegold, silver and copper falling to the bottom of the vats as a sludge.

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