摘要
针对某些单质硫含量较高的硫精矿中硫磺的提取进行实验和工艺过程研究,得到了硫单质完全分离的时间-温度曲线,确定最适分离温度为300℃—350℃,并比较了不同气氛下(N2气氛和还原性气氛)硫精矿样品热处理前后组分的变化,发现在500℃还原性气氛下可以得到纯度较高的FeS产物.根据实验结果,提出了一种适用于某些单质硫含量较高的硫精矿中硫磺提取的工艺过程,该过程含有重力场和温度梯度,并可连续操作.
This work focused on the experimental and technological investigation of sulfur extraction from sulfur concentrate which contained large quantity of sulfur.The time-temperature curve of complete sulfur separation was obtained.The optimum separation temperature was 300 ℃—500 ℃.The composition change before and after heating treatment of sulfur concentrate in different atmosphere（N2 atmosphere and reducing atmosphere） was compared.Higher purity product FeS was obtained at 500 ℃ under reducing atmosphere.Based on the experiment results,a process was developed for sulfur extraction from sulfur concentrate which contained large quantity of sulfur.The process involved gravitational field and temperature gradient,and it can be operated continuously.
出处
《环境化学》
CAS
CSCD
北大核心
2011年第6期1063-1067,共5页
Environmental Chemistry
基金
国家自然科学基金项目(20877088
21007082)
