journal6 ›› 2011, Vol. 32 ›› Issue (3): 100-102.

• 化学化工 • 上一篇    下一篇

高碳镍钼矿催化氧化镍钼分离工艺条件

  

  1. (吉首大学化学化工学院,湖南 吉首 416000)
  • 出版日期:2011-05-25 发布日期:2012-04-08
  • 通讯作者: 颜文斌(1965-),湖南邵东人,吉首大学化学化工学院教授,主要从事无机材料及矿产资源加工与利用研究.
  • 基金资助:

    吉首大学大学生创新性实验计划资助项目,湖南省教育厅资助科研项目(09C824)

Catalytic Oxidation Separation of Nickel and Molybdenum in the High Carbon Nickel Molybdenum

  1. (College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,China)
  • Online:2011-05-25 Published:2012-04-08

摘要:研究了高碳镍钼矿催化氧化分离的工艺方法,并对工艺条件进行了探讨.通过单因素实验确定了高碳镍钼矿镍、钼分离的最佳条件:当硫酸浓度为15%,软锰矿的过量系数为20%,液固比3∶1,反应时间6 h,反应温度95 ℃,催化剂C与镍的质量比为4.4时,镍的浸出率可达到95.84%,钼的浸出率仅3.74%,钼主要以钼酸的形式富集于渣中,实现了镍、钼的初步分离.

关键词: 高碳镍钼矿, 催化氧化, 分离

Abstract: The craft method of catalytic oxidation separation of high carbon nickel molybdenum was studied,and the craft condition was discussed.The best separation condition of nickel and molybdenum in the high-carbon Nickel molybdenum was identified by the single factor test:the sulfuric acid concentration was 15%,excess coefficient of pyrolusite was 20%,liquid-solid ratio was 1∶3,response time was 6 h,and reaction temperature was 95 ℃; when the mass ratio of catalyzer C and nickel is 4.4,the leaching rate could reach 95.84%,the leaching rate of molybdenum was only 3.74%,and the molybdenum mainly gathered in the residue in the form of molybdic acid.In such conditions,the preliminary separation of nickel and molybdenum was realized.

Key words: high carbon nickel molybdenum, catalytic oxidation, separation

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