Selective extraction of Mo from a Ni-Mo ore using pressure alkaline leaching

被引：16

作者：

Wang, Mingshuang ^{[2
]}

Wei, Chang ^{[1
]}

Fan, Gang ^{[1
]}

Li, Minting ^{[1
]}

Deng, Zhigan ^{[1
]}

Wang, Sifu ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Peoples R China

[2] Refinery Shondong GoldMining LaiZhou Co Ltd, Laizhou 261441, Peoples R China

来源：

HYDROMETALLURGY | 2015年 / 153卷

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Ni-Mo ore; Mo; Selective extraction; Pressure alkaline leaching; CAMBRIAN BLACK SHALES; PGE-AU MINERALIZATION; SOUTH CHINA; NICKEL-OXIDE; MOLYBDENUM; SOLUBILITY; WATER; OXIDATION; RECOVERY;

D O I：

10.1016/j.hydromet.2015.01.008

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Pressure alkaline leaching of a Ni-Mo ore for selective extraction of Mo was investigated. Thermodynamic analysis of Mo-S-H2O and Ni-S-I-H2O indicated that pressure alkaline leaching of Ni-Mo ore is technically feasible for selective extraction of Mo. The effects of NaOH concentration, temperature, leaching duration, liquid/solid ratio and particle size on the leaching of Mo and Ni were studied. The results showed that Mo extraction was improved significantly by NaOH concentration, temperature or leaching duration, but not by liquid/solid ratio or particle size. The optimum parameters were: NaOH concentration of 100 g/L, temperature of 120 degrees C, leaching duration of 5 h, liquid/solid ratio of 3 mL/g and particle size of 74-98 mu m. Under these conditions, about 95.7% of Mo and 13% of Ni could be extracted. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：6 / 11

页数：6

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