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试验研究了用乙醚萃取法净化金龟解废液的原理及工艺方法．将合Au180g／l，Ag0．5g／l，HCl210g／l，Pt9．40g／l，Pd10．25g／l及其它贱金属元素的金电解废液，稀释后的料液，经过两段萃取－反萃取，得到含Au153g／l，Ag0．0025g／l，HCl180g／l和微量铂族元素及其它贱金属元素的电解液.在阳极含Au＞90％以上的条件下进行金电解精炼，可产出品位大于99．99％的电金．生产实践证明重视性，再现性良好．
The principle and process of purifying scytate waste liquid by ether extraction were studied experimentally. The gold electrolysis waste liquid of the mixture of Au180g / l, Ag0.5g / l, HCl210g / l, Pt9.40g / l, Pd10.25g / l and other base metal elements is diluted by two stages of extraction- To obtain an electrolytic solution containing Au153g / l, Ag0.0025g / l, HCl180g / l and traces of platinum group elements and other base metal elements, gold electrolytic refining under the condition that the anode contains Au> 90% Grade more than 99.99% of the gold. Production practice proves importance and reproducibility is good.