Gold cementation with zinc powder from leaching solutions with ammonia-thiosulphate
Keywords:Precipitation, Gold, Cementation, Cine, Thiosulphate
The cementation of gold with powder of zinc, from solutions with thiosulphate and ammonia, was studied. The variables evaluated were: thiosulphate concentration, ammonia concentration, pH, copper concentration and zinc concentration. The results have revealed the great importance of ammonia/thiosulphate relationship in this process and that the impurities presence like copper and zinc will to inhibit the cementation process.
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