公开(公告)号：US5061459A

公开(公告)日：1991-10-29

申请号：US428277

申请日：1989-10-27

申请人： Charles A. Bennett ,  Elizabeth A. Crathorne ,  Raymond Edwards

发明人： Charles A. Bennett ,  Elizabeth A. Crathorne ,  Raymond Edwards

IPC分类号： C22B11/08

CPC分类号： C22B11/08

摘要： A process for treating copper containing precious metal ores prior to cyanidation and recovery of the precious metal eg gold. The process involves addition to the ore before or after milling of a water soluble or water dispersible surface active agent in the form of a fatty alkyl amine preferably an ethoxylated fatty alkyl amine. The agent reduces the high cyanide consumption, which is caused by copper dissolution, by passivating the mineral surface.

摘要翻译： 在氰化和贵金属例如金的回收之前处理含铜贵金属矿石的方法。 该方法包括在研磨以脂肪烷基胺，优选乙氧基化脂肪烷基胺形式的水溶性或水分散性表面活性剂之前或之后加入矿石。 通过钝化矿物表面，该试剂降低了由铜溶解引起的高氰化物消耗。