FIELD: gold refinement. SUBSTANCE: method involves dissolving of crude gold using iodate and/or iodide compound to form solution containing iodide compound of gold. The insoluble substances are removed from solution, ions containing gold are reduced using alkali for selective precipitation of gold with high purity. Iodine can be formed by electrolysis of iodide compound. EFFECT: improved method of gold refinement. 3 cl
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