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。
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.
出处
《吉首大学学报（自然科学版）》
CAS
2011年第3期100-102,111,共4页
Journal of Jishou University(Natural Sciences Edition)
基金
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)
关键词
高碳镍钼矿
催化氧化
分离
high carbon nickel molybdenum
catalytic oxidation
separation
