碳钼矿中钼升华特性的研究  

Study on Sublimation of Molybdenum in Carbon Molybdenite

作　　者：符剑刚[1] 钟宏[1] 贾丽娟[1] 王晖[1] 王浩[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《稀有金属与硬质合金》2008年第2期15-18,28,共5页Rare Metals and Cemented Carbides

基　　金：国家自然科学基金资助项目(50704036);湖南省自然科学基金资助项目(08JJ3027)

摘　　要：采用管式电阻炉研究了不同钼含量的碳钼矿样品中钼的升华特性。试验结果表明:钼的升华率随着温度的升高和碳钼矿中钼品位的增加而明显增加,当焙烧温度达到1 200℃时,w(Mo)≥3%的碳钼矿均可获得很好的升华效果,其钼升华率在88%以上;当焙烧温度达到1 400℃时,各种品位的碳钼矿均可获得92%以上的钼升华率,而且品位越高,钼升华率也就越大,w(Mo)≥35%的碳钼矿中钼升华率高达99.6%。同时,焙烧温度对升华得到的MoO3的纯度影响很大,当焙烧温度低于1 200℃时,MoO3纯度大于96.9%;而当焙烧温度升高到1 400℃时,MoO3纯度降到87.3%。The sublimation characteristics of molybdenum in the sample is studied with tube electric furnace. The result shows that the rate of sublimation of molybdenum is distinctly increased with higher temperature and higher molybdenum grade in carbon molybdenum. At 1 200 ℃ ,the sublimation of Mo in carbon molybdenum ore （with Mo≥3 %） can reach 〉88 %. And molybdenum sublimation of various grade of carbon molybdenum ore can reach 99.6% at 1 400 ℃. The higher the ore grade,the higher the sublimation rate. Temperature has a great impact on purity of MoO3. When the temperature is lower than 1 200 ℃,purity of MoO3 is over 96. 9%. And when the temperature is over 1 400 ℃, purity of MoO3 decreases to 87.3%.

关 键 词：碳钼矿 钼升华 MOS2 MOO3 综合回收 

分 类 号：TF841.2[冶金工程—有色金属冶金]