湿法冶金(如混汞、氯化、氰化等)是提取金的主要方法,其中起主导作用的是氰化法.近三十年来,混汞法的作用大大降低了.但是混汞法作为从重选精矿中回收游离金的辅助方法仍有很大现实意义.氯化法在十九世纪末期,即在开始采用氰化法的同时几乎被淘汰.最近又有许多国 Hydrometallurgy (such as amalgamation, chlorination, cyanidation, etc.) is the main method of gold extraction, of which cyanation is the dominant method. The role of amalgamation has been greatly reduced over the past three decades. However, As an adjunct to the recovery of free gold from gravity concentrates, there is still a great deal of realism. The chlorination process was almost eliminated at the same time as the cyanidation process began in the late nineteenth century, and many other countries