摘要
一步法炼锑工艺属酸性湿法炼锑，在同一设备完成辉锑矿的电氯化浸出与电积。锑一次浸出率大于９８％，阴极电效大于９５％，吨锑直流电耗低于１２５０ｋｗｈ，阴极锑质量达国标（ＧＢ１５９９－７９）二号锑。研究了浸出反应机理和影响浸出率的主要因素，选择了一种适用的新型阴离子交换膜ＭＲ８６６，同时该工艺避了爆锑生成。
A new direct method of antimony production was reported. The methodmay be classified as a branch of acid hydrometallurgy for antimony. The electrochloridizing,leach of stibnite and electrowinning of antimony were carried out in anidentical equipment. The single leaching efficiency of 'antimony is over 98%,cathodecurrent efficiency over 95%,the energy consumption of direct current is below 1250kwh per ton cathode antimony,and the quality of cathode antimony corresponds tothe #2 antimony according to the national stsndards of China (GB 1599-79). Themechanism of leaching reactions and the main factors effecting leaching efficiencyhave been investigated. A new anion--exchange membrane was selected as the membrane of electrolytic cell. The method can avoid the generation of explosive antimony.
基金
贵州省科学基金
关键词
炼锑
辉锑矿
电氯化浸出
一步炼锑法
爆锑
stibnite
electrochloridlying leach
anion-exchange membrane
explosiveantimory
