对三和金业生物氧化-氰化炭浸提金工艺进行了优化改造。通过优化生物氧化作业参数，使其处理能力提高了42．49 t/d；增设氧化洗涤液二段沉淀回收高品位含金微细氧化渣、采用二段沉淀-压滤工艺回收粉炭、增设摇床重选工艺回收氰渣中的金等，金的总回收率提高了0．46％。企业年增产黄金884．4 kg，取得了显著的经济效益。
Optimization of bio-oxidation-CIL after cyanidation process gold leaching process was carried out in Sanhe gold mining company .The processing capability was increased by 42 .49 t/d with the optimization of bio-oxida-tion operation parameters .Through adding a two-staged process for precipitating oxidation elution solution to recover high grade gold-containing micro fine oxidation residues ,applying two-staged precipitation-filter pressing process to re-cover carbon power and supplementing with a gravity separation process using tables to recover gold from cyanidation slags.Thanks to these measures , total recovery of gold was increased by 0.46 % and annual gold production by 884.4 kg,achieving notable economic benefits .
参考文献
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