高碳镍钼矿碱性还原熔炼-水浸分离与提取镍钼

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陈龙，唐朝波*，陈永明，李云，杨建广，何静，杨声海

难冶有色金属资源高效利用国家工程实验室，中南大学冶金与环境学院，湖南长沙 410083

收稿日期:2017-12-07修回日期:2018-07-13出版日期:2018-10-22发布日期:2018-10-12
通讯作者:唐朝波

基金资助:国家自然科学基金重点基金

Separation and extraction of nickel and molybdenum by alkaline reduction smelting-water leaching from high carbon Ni-Mo ore

Long CHEN, Chaobo TANG*, Yongming CHEN, Yun LI, Jianguang YANG, Jing HE, Shenghai YANG

National Engineering Laboratories for Nonferrous Metal Resources Efficient Utilization, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China

Received:2017-12-07Revised:2018-07-13Online:2018-10-22Published:2018-10-12

摘要/Abstract

摘要： 在理论分析的基础上，以贵州遵义镍钼矿为原料，提出了镍钼矿碱性还原熔炼?水浸提钼的清洁冶金新工艺，考察了Na2CO3用量、温度、还原剂用量、反应时间对镍还原率及钼浸出率的影响，在最优条件下进行了扩大实验. 结果表明，在碱性介质及强还原气氛下，镍钼矿中的镍被还原成高品位镍铁合金，钼转化为可溶性的钼酸盐；最佳工艺条件为Na2CO3用量为理论量的2倍、熔炼温度1000℃、还原剂添加量为镍钼矿的5wt%、反应时间1.5 h. 最佳条件下扩大实验金属镍回收率为94.92%，金属钼挥发率为9.36%，浸出率为99.94%，固硫率接近100%，得到了高品位镍铁合金和含钼浸出液，镍钼有效分离.

引用本文

陈龙唐朝波陈永明李云杨建广何静杨声海. 高碳镍钼矿碱性还原熔炼-水浸分离与提取镍钼[J]. 过程工程学报, 2018, 18(5): 981-988.
Long CHEN Chaobo TANG Yongming CHEN Yun LI Jianguang YANG Jing HE Shenghai YANG. Separation and extraction of nickel and molybdenum by alkaline reduction smelting-water leaching from high carbon Ni-Mo ore[J]. Chin. J. Process Eng., 2018, 18(5): 981-988.

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