中文摘要：

研究脆硫铅锑矿在真空条件下的热解行为,对真空冶金法处理脆硫铅锑矿具有重要意义。本文采用实验研究的方法,对各个条件下脆硫铅锑矿真空炉热解产物的物相结构和主要金属元素含量进行了分析,研究结果表明,脆硫铅锑矿（Fe Pb4Sb6S14）在真空炉内较低温度下会发生分解,当温度达到500℃时已经完全分解。分解产物Pb S、Sb2S3、Fe S在实验条件下较稳定并不会发生分解,他们的优先挥发次序依次为：Sb2S3、Pb S、Fe S。

英文摘要：

We addressed the decomposition behavior of jamesonite （FePb4Sb6S14） in vacuum. The influence of the decomposition conditions, including but not limited to the decomposition temperature and time, the contents of jamesonite concentrate, and pressure, on the volatilization of PbS, Sb2S3, and ZnS was theoretically analyzed and experimentally evaluated with X-ray diffraction, differential scanning calorimetry-thermogravimetry, and conventional chemical analysis. The major compounds of the jamesonite concentrate include jamesonite, pyrite and stibnite. The preliminary results show that at 500℃,jamesonite can be completely decomposed into the stable compounds of Sb2S3 ,PbS and ZnS at a pressure in 1 - 10 Pa range. Complete volatiIization of the Sb2S3, PbS and ZnS was observed at 500,600 and 900℃, respectively. We suggest that the results be of some technological interest in vacuum metallurgy