利用煤还原硫酸钾的研究

Study on the reduction of K_2SO_4 by coal

介绍了在高温下用煤作还原剂还原硫酸钾生成硫化钾的新方法。当ｍ（还原煤）：ｍ（硫酸钾）为０．３０：１、炉温为９２０℃、反应时间为１．２５ｈ时，转化率可高达８０％。

A new process to produce K_2S through reduction of K_2So_4 by using coal as the reductant at high temperature is introduced. The conversion rate can reach as high as 80%when the reaction lasts 1.25 hours with the ratio between the coal and K_2SO_4 being 0.30:1 and the stove temperature 920℃.