中文摘要：

采用低温固硫熔炼新工艺对辉锑矿一步熔炼进行研究。结果表明：在液固比为5（质量比）、聊（Na2C03）／m（KCl）为4（质量比）、粉煤质量过量系数为2倍、ZnO质量过量系数为1．2倍、熔炼温度为850℃、熔炼时间为2h的最优条件下，sb的直收率为90％（质量分数），粗锑品位为92％（质量分数），辉锑矿中的硫以ZnS的形态固定于渣中，渣中硫固定量为84％（质量分数）。较传统冶火法炼锑工艺，熔炼温度降低350℃以上，降低了能耗，解决了辉锑矿熔炼过程中低浓度S02污染的问题。

英文摘要：

A low-temperature and sulfur-fixing smelting process was applied to separate antimony from stibnite. The results show that the direct recovery rate of Sb is 90%（mass fraction）, and the grade of Sb is 92%（mass fraction）, and the sulfur fixing in solid slag is 84% （mass fraction） as ZnS under the following optimum conditions： liquid-solid ratio 5 （mass ratio）, m（Na2CO3）/m（KC1） for 4 （mass ratio）, quality excessive coefficient of pulverized coal for 2 times, quality excessive coefficient of ZnO for 1.2 times, smelting temperature for 850 ℃, smelting time for 2 h. Compared with the traditional methods of pyrometallurgy of antimony, this process can not only lower smelting temperature more than 350 ℃ and save energy consumption significantly, but also considerably reduce the atmospheric emissions of low-concentration sulfur dioxide.