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由于贵金属价格的提高和从矿石中浸出、沉淀贵金属的工艺有了重要的改进,许多曾经认为不经济的金、银矿床现正在被开采。对一些使用活性炭吸附和解吸贵金属氰化物的系统进行了重大的改进,除了在堆浸槽浸操作、废水处理及尾渣返水等方面大量使用活性炭吸附柱外,也使得炭浆法(CIP)工厂遍布于世界范围。
Significant improvements have been made in the art of precious metal precipitation due to the increase in the price of precious metals and leaching from ores, and many gold and silver deposits, which were once considered uneconomical, are now being mined. Significant improvements have been made in some systems using activated carbon for adsorption and desorption of precious metal cyanides. In addition to extensive use of activated carbon adsorption columns in reactor dipping operations, wastewater treatment and tailings backwash, CIP, Factories throughout the world.