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目前国内外生产黄金均采用氰化法,其主要问题是:氰化物有剧毒,氰化后“废水”不易处理;国内氰化物生产满足不了需要;对含砷、碲、铋、碳等元素的矿物不能直接氰化;只能回收金及少量银,其它有价金属白白浪费。由于上述几个问题没有很好解决,造成全国金精矿大量积压,阻碍着黄金生产的发展。为了寻求金精矿的冶炼新工艺,我们进行了试验研究。通过流程对比,决定选择金
At present, the production of gold both at home and abroad adopts cyanide method. The main problems are as follows: Cyanide is highly toxic and “waste water” after cyanidation is not easy to handle; domestic cyanide production can not meet the needs; for arsenic, tellurium, bismuth, carbon and other elements Of the minerals can not be directly cyanidation; gold and silver can only be recovered, other valuable metals wasted. Due to the above problems are not well resolved, resulting in a large backlog of gold concentrate, hinder the development of gold production. In order to seek a new gold smelting process, we conducted a pilot study. Through the process of comparison, decided to choose gold