很早以前,人们就曾寻求用电积法直接从含金银的氰化物溶液中提取金和银。那时采用铁板作阳极,铅板作阴极,但由于成本过高未能在工业上应用。随着技术的进步,新的提金方法不断出现,本世纪七十年代以来,采用活性炭吸附金的工艺越来越普 Long ago, people sought to use electrowelling to directly extract gold and silver from gold and silver-containing cyanide solutions. At that time, the iron plate was used as the anode and the lead plate was used as the cathode. However, due to the high cost, it was not industrially applicable. With the progress of technology, new methods of gold extraction continue to appear. Since the seventies of this century, the process of using activated carbon to adsorb gold has become more and more popular