摘要
研究了辉钼精矿在Na2 CO3 Na2 MoO4 Na2 SO4 体系的熔盐氧化过程 ,探索了不同工艺参数对钼的转化率和脱硫率的影响 .结果表明 ,在熔盐组成为 1∶1,配料比为 1∶10 ,740℃ ,鼓风速度为 5 .95L/min ,鼓风时间为 10min的条件下 ,钼的转化率和脱硫率均可达 99%以上 .熔炼产物经水浸后 ,钼精矿中的钼和硫分别以Na2 MoO4 和Na2 SO4 形态进入溶液 ,以SO2 形态进入熔炼尾气中的硫不超过总硫量的 0 .8% .
The melting salt oxidation of molybdenite in Na 2CO 3 Na 2MoO 4 Na 2SO 4 system has been studied. The effect of processing parameters on the conversion ratio of molybdenum and sweetening ratio has been explored. The results express that, under the conditions of melting salt constitution 1∶1, burden ratio 1∶10, 740 ℃,the velocity of air blast 5.95 L/min, the time of air blast 10 min, the conversion ratio of molybdenum and sweetening ratio could reach over 99%. When melting products are leached with water, molybdenum and sulfur in the concentrate can be dissolved in the form of Na 2MoO 4 and Na 2SO 4 separately. The amount of sulfur in flue gas as the form of SO 2 is less than 0.8% of total sulfur amount. [
出处
《中南工业大学学报》
CSCD
北大核心
2000年第5期407-410,共4页
Journal of Central South University of Technology(Natural Science)
关键词
辉钼精矿
熔盐氧化
焙烧
二氧化硫
moybdenite concentrate
Na 2CO 3 Na 2MoO 4 Na 2SO 4 system
melting salt oxidation
