含铜金氧化矿石回收金银铜试验研究  

Experimental study on recovery of gold, silver, and copper from copper-bearing gold oxide ores

作　　者：孔令强 张涛 郭建东 Kong Lingqiang;Zhang Tao;Guo Jiandong(Shandong Guoda Gold Co.,Ltd.;No.6 Geological Team of Shandong Provincial Bureau of Geology and Mineral Resources)

机构地区：[1]山东国大黄金股份有限公司 [2]山东省地质矿产勘查开发局第六地质大队

出　　处：《黄金》2023年第2期51-55,共5页Gold

摘　　要：某含铜金氧化矿石采用氰化工艺回收金、银,氰化钠消耗较高,金、银浸出率低,其中的铜等有价金属难以有效回收,氰化尾矿处置困难。通过试验提出一种从含铜金氧化矿石中综合回收金、银、铜的工艺方法。在磨矿细度-0.074 mm占90%时,用10%硫酸加热酸浸浸铜,含金酸浸渣采用铵盐+环保提金剂BK516浸出金、银,金、银、铜回收率分别达到88.85%、82.59%、83.77%,金、银、铜等有价金属得到了有效回收,为该类矿石的综合处理提供了新的工艺方法。The cyanide process to recover gold and silver from a copper-bearing gold oxide ore is characterized by high consumption of sodium cyanide and a low leaching rate of gold and silver.Copper, among other valuable mine-rals, is difficult to efficiently recover, and cyanide tailings are difficult to dispose of.A process for recovering gold, silver, and copper from the copper-bearing gold oxide ore is proposed through experiments.When the grinding fineness of-0.074 mm accounts for 90 %,10 % sulfuric acid is used for heated acid leaching of copper, and gold and silver are leached from the gold-bearing acid residue by ammonium salts+environmentally friendly gold leaching reagent BK516,the gold, silver, and copper recovery rates are 88.85 %,82.59 %,and 83.77 % respectively.Valuable metals such as gold, silver, and copper are effectively recovered.Meanwhile, the study provides novel processes for the comprehensive treatment of similar ores.

关 键 词：铜金氧化矿 酸浸 铵盐 环保提金剂 综合回收 

分 类 号：TF831[冶金工程—有色金属冶金]