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An Innovative Thiourea Gold Leaching Process

Mar 01, 1998  To achieve high gold recoveries, the values of the process parameters of thioureation may be: pH 1; temperature, 20°C; thiourea concentration, 100 g/kg; pulp density, 20% and leaching time, 6 h. When the leaching temperature has been fixed at 60°C, after 2 h of leaching high Au recovery (about 87%) was attained, but thiourea consumption

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