Extraction of molybdenum from acidic leach solution of Ni-Mo ore by solvent extraction using tertiary amine N235

被引：6

作者：

Chen, Bianfang ^{[1
]}

Xian, Pengfei ^{[2
]}

Huang, Sheng ^{[1
]}

Liu, Biao ^{[1
]}

Ge, Qi ^{[1
]}

Wang, Mingyu ^{[1
]}

Wang, Xuewen ^{[1
]}

机构：

[1] Cent S Univ, Sch Met & Environm, Changsha, Hunan, Peoples R China

[2] China ENFI Engn Co Ltd, Beijing, Peoples R China

来源：

CANADIAN METALLURGICAL QUARTERLY | 2017年 / 56卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Molybdenum; acidic leach solution; Ni-Mo ore; solvent extraction; N235; SEPARATION; RECOVERY; VANADIUM;

D O I：

10.1080/00084433.2017.1361197

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Tertiary amine N235 diluted with sulphonated kerosene containing sec-octyl alcohol as a phase modifier was used to directly extract molybdenum from the acidic leach solution of Ni-Mo ore. The results indicated that the extraction of molybdenum can reach more than 88% using a solvent extraction system consisting of 10vol.-% N235 and 10vol.-% sec-octyl alcohol in sulphonated kerosene with an O/A ratio of 1:2 at room temperature for 20min. The extracted molybdenum species of Mo7O21(OH)(3)(3-), MoO2(SO4)(2)(2-) and MoO2(HSO4)(4)(2-) in loaded organic phase were identified, and the predominant species was Mo7O21(OH)(3)(3-). Molybdenum in the loaded organic phase can be stripped with ammonia solution, and the stripping of molybdenum can reach 95.8% at an O/A ratio of 7:1, phase contact time of 10 min, and the ammonia concentration of 6mol L-1.

引用

页码：426 / 431

页数：6

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