It especially investigated the supplement role of some ammonium salts and their consumption for cyanide leaching of gold. ( 3) The experiment shows that, due to the presence of dissolubility copper in the ore, gold leaching has been restarted in the cyanide process. 试验数据表明,由于矿石中可溶性铜的存在,金在氰化过程中受到了较大的影响。