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从压热解吸活性碳上的金属得到的碱性溶液中,用流动孔多阴极(протогныйобьемнопористыйкатод)电解回收金和银的原则可能性早已被证明。本文研究的溶液组成如下,(毫克/升):Au 250—800;Ag 5—40;NaOH 800—4000;NaCN 30—300;某些难于控制的杂质:针状碎木屑,硅胶,碎碳片等。在循环制度下工作时,将碱性含金洗脱液放入容积为2立方米的容器1中(图1),洗脱液从容器1自流到两个并联的电解槽2中,在这里经部分脱除金属后,由泵3将其返回容器
The possibility of electrolytically recovering gold and silver by flow cell multi-cathodes from an autoclave-desorbed alkaline solution of metal on activated carbon has long been proven. The solutions studied in this paper are as follows (mg / L): Au 250-800; Ag 5-40; NaOH 800-4000; NaCN 30-300; some difficult to control impurities: acicular chips, silica gel, Wait. When working under a recycle system, the alkaline gold-containing eluent is placed in a container 1 having a volume of 2 cubic meters (Figure 1) and the eluate flows from the container 1 into two parallel electrolytic cells 2, where it is After partially removing the metal, it is returned by the pump 3 to the container