【摘要】 依据氧化剂和络合剂,分析溴化物浸金体系。在标准条件下,只要氧化剂的标准电极电位大于0.88 V,金将以三价金溴络合物的形态浸出;当氧化剂的标准电极电位高于0.94 V,金将以一价金溴络合物的形态浸出。热力学上更有利于金以三价金溴络合物的形态浸出。通过选择非溴水氧化剂,有可能避免溴化物浸金过程中溴的挥发。更多还原

【Abstract】 The gold bromide leaching systems were discussed in detail according to oxidants and ligands.The leaching of gold in the form of bromo-complex of gold(III) can be performed spontaneously under standard conditions while that the standard electrode potential of oxidants is larger than 0.88 V,and when the standard electrode potential of oxidants is larger than 0.94 V,gold bromide leaching in the form of bromo-complex of gold(I) can be carried out.The leaching of gold in the form of bromo-complex of gold(III) is performed more easily in respect of thermodynamics.The vapor of bromine in gold bromide leaching processes may be avoided by selecting non-liquid bromine oxidizing agents.更多还原