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绪言现有炼铜流程处理高砷铜矿时,砷广泛地分散于各产品、半产品、烟尘、废水及废渣中,既不能脱除,也不易回收,不但会使制酸的钒催化剂活性下降,而且使环境受到严重污染。因此,国内外有关单位对高砷铜矿的处理均在进行试验研究。如美国矿务局采用氧压二氯化铁浸出黝铜矿,加拿大国际镍公司采用氧压浸出高砷铜精矿,西德、奥地利采用氧压酸浸高砷高锑铜矿。其共同特点是氧压浸出,浸出结果铜的浸出率可达98％,As、Sb、Fe等不被浸出,几乎全部进入残渣。
INTRODUCTION In the current copper smelting process for treating high-arsenic copper ores, arsenic is widely dispersed in various products, semi-products, soot, waste water and waste residue, and can not be removed nor easily recovered. This not only reduces the activity of the vanadium catalyst , But also to pollute the environment. Therefore, the relevant units at home and abroad for the treatment of high-arsenic copper are undergoing experimental study. For example, the United States Bureau of Mines uses oxygen pressure ferric chloride leaching tetrahedrite, Canadian International Nickel Company using oxygen pressure leaching high arsenic copper concentrate, West Germany, Austria, oxygen pressure acid leaching high arsenic high antimony copper. Its common feature is oxygen pressure leaching, the leaching results of copper leaching rate of up to 98%, As, Sb, Fe, etc. are not leached, almost all into the residue.