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绿色节能型黄金电解精炼技术研究与应用

Research and application of green and energy-saving technology in gold electrolytic refining

  • 摘要: 针对传统黄金电解精炼过程存在的高污染、高损耗、高能耗和高成本问题,引入绿色、环保的离子交换膜电解技术、粉末冶金技术、湿法无氨工艺和Ag-Ti双金属复合材料,实现了黄金电解精炼从铸板、造液、电解到废电解液净化、金阳极泥处理整个过程的提质降耗。该技术的成功应用使得总金回收率从99.85 %提高到99.95 %,银回收率从66 %提高到99 %,能耗降低了约30 %,从源头上杜绝了氮氧化物的产生及氨水的使用,为企业带来了显著的经济效益和环境效益。

     

    Abstract: In response to the issues of high pollution,high losses,high energy consumption,and high costs in traditional gold electrolytic refining processes,green and environmentally friendly technologies such as ion exchange membrane electrolysis,powder metallurgy,wet ammonia-free processes,and the use of Ag-Ti bimetallic composite materials were introduced.This enabled the improvement of quality and reduction of consumption throughout the entire process of gold electrolytic refining,from ingot casting,solution preparation,electrolysis,to the purification of spent electrolytes and gold anode slime treatment.The successful application of this technology increased the gold recovery rate from 99.85 % to 99.95 % and the silver recovery rate from 66 %  to 99 %,while reducing energy consumption by about 30 %.It effectively eliminated the generation of nitrogen oxides and the use of ammonia water from the source,bringing significant economic and environmental ecological benefits to enterprises.

     

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