中南大学学报（自然科学版）2012，Vol.43Issue(9)：3338-3343,6.
硫化锑精矿低温熔炼新工艺
Separation antimony from stibnite concentrate through a low temperature smelting
摘要
Abstract
In view of serious shortcomings existing in current antimony pydrometallurgical process such as complex operation, high smelting temperature and low concentrations SO2 fume pollution, a low-temperature molten salt smelting process to directly produce antimony was proposed in this work. Effects of molten salt composition, smelting temperature, reaction time, salt amount, and ZnO addition on the molten salt smelting of stibnite concentrate were investigated. The optimum conditions is determined as follows: w(Na2CO3)/w(NaCl)=0.75, temperature 850 °C, reaction time 1 h, w(Na2CO3)/w'(solids)=6:l, w(ZnO)/w(theory)=1.0. Under above-mentioned optimum conditions, the average direct recovery ratio of antimony is 84.42%, and the average grade of crude antimony is 86.66%.关键词
硫化锑精矿/低温熔盐熔炼/固硫/清洁冶金Key words
stibnite concentrate/low-temperature molten salt smelting/sulfur fixing/clean metallurgy分类
矿业与冶金引用本文复制引用
叶龙刚,唐朝波,唐谟堂,杨建广,陈永明,杨声海,何静..硫化锑精矿低温熔炼新工艺[J].中南大学学报（自然科学版）,2012,43(9):3338-3343,6.基金项目
国家自然科学基金资助项目(50774099,51104128) （50774099,51104128）
五矿湖南有色基金项目资助(2010年) （2010年）
十二五国家科技支撑计划项目(2012BAC12802) （2012BAC12802）
