NON-POLLUTION PROCESS FOR COMPLEX REFRACTORY SILVER-GOLD ORES

来源期刊：中国有色金属学报(英文版)1995年第4期

论文作者：Xu Shengming Zhang Chuanfu Zhao Tiancong Li Zuogang

文章页码：69 - 72

Key words：complex ore; carbonaceous substances; silver-gold concentratem; lime roasting

Abstract: Chemistry of lime roasting process for complex sulfided concentrate was described briefly,the chemical phases of gold,silver and carbonaceous substances in the concentrate were also investigated,and the influences of roasting temperature,time and stoichiometic ratio of hydrated lime on sulfur retention and silver extraction of the calcine were studied finally.Under the optimized conditions,gold-silver extractions exceeded 93% and 83%,respectively.