含砷高硫金精矿焙烧—氰化工艺研究  

Study on Roasting/Cyanidation Process for Treating Gold Concentrate with Arsenic and High Sulfur Content

作　　者：徐远志[1] 杨刘祥[1] 杨大锦[1] 左以专[1] 

机构地区：[1]昆明冶金研究院

出　　处：《云南冶金》1999年第4期30-36,共7页Yunnan Metallurgy

摘　　要：按焙烧—氰化方案对某含砷高硫金精矿的提金工艺进行了试验研究， 结果表明， 金精矿在模拟工业窑炉操作制度下焙烧氧化， 硫、砷脱除率和综合氧化率分别达９５％ 、９２％ 和９５％以上， 焙砂经细磨—碱洗后氰化， 金的浸出率超过９１％ 。Gold extraction from a gold concentrate with arsenic and high sulfur content are tested with roasting/cyanidation process as an option.Under conditions simulating commercial operations,roasting oxidation of the gold concentrate yields arsenic removal rate and comprehensive oxidation rate of 95% and 92% respectively,and sulfur,both over 95%.Cyanide leaching rate of gold is above 91% after fine grinding and alkaline washing of the roasted calcine.

关 键 词：含砷 金精矿 高硫 焙烧 氰化 

分 类 号：TF831.026[冶金工程—有色金属冶金] TF831.032