摘要
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-oxidation 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 recover 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.
出处
《黄金》
CAS
2013年第7期58-60,共3页
Gold
关键词
生物氧化
氰化炭浸
含金微细粉矿
含金粉炭
重选
bio-oxidation
CIL after cyanidation
gold-containing micro-fine ore powder
gold-containing carbon powder
gravity separation
