有色金属科学与工程Issue(2)：25-29,5.
焙烧-酸浸-氰化法从复杂金精矿中回收金银铜
Recovery of gold, silver and copper from complex gold concentrate by roasting-acidic leaching-cyanidation process
摘要
Abstract
Gold, silver and copper were extracted from complex gold concentrate by roasting-acidic leaching-cyanidation process. The experimental results show that the roasting temperature, time, additive and its dosage have great influence on the leaching of gold, silver and copper. The optimal conditions were further determined as follows: NaOH dosage of 6 %(ω), roasting temperature of 630 °C, roasting time of 3 h, sulfuric acid concentration of 1 mol/L, liquid to solid ratio of 5∶1 in acidic leach, leaching temperature of 50 °C, leaching time of 4 h, sodium cyanide concentration of 3 ‰, liquid to solid ratio of 5∶1 in cyanidation, room temperature and cyanidation time of 72 h. Under above-mentioned conditions, the leaching rate of gold, silver and copper achieved at 93.53%, 75.37%and 94.23%respectively.关键词
复杂金精矿/添加剂/焙烧/酸浸/氰化浸出Key words
complex gold concentrate/additive/roasting/acidic leaching/cyanide leaching分类
矿业与冶金引用本文复制引用
吴在玖..焙烧-酸浸-氰化法从复杂金精矿中回收金银铜[J].有色金属科学与工程,2013,(2):25-29,5.基金项目
国家自然科学基金资助项目(51164011)；福建省区域科技重大合作项目 （51164011）
