RECOVERY OF METALS FROM MOLYBDENITE CONCENTRATES BY HYDROMETALLURGICAL TECHNOLOGIES

被引：0

作者：

Wang, Yufang ^{[1
]}

Jiang, Kaixi ^{[1
]}

Zou, Xiaoping ^{[1
]}

Zhang, Lei ^{[1
]}

Liu, Sanping ^{[1
]}

机构：

[1] Beijing Gen Res Inst Min & Met, Beijing 100070, Peoples R China

来源：

T.T. CHEN HONORARY SYMPOSIUM ON HYDROMETALLURGY, ELECTROMETALLURGY AND MATERIALS CHARACTERIZATION | 2012年

关键词：

Molybdenite Concentrate; Rhenium; Molybdenum; Pressure Oxidative Leaching; Solvent Extraction;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Molybdenite concentrates are usually treated by roasting, but low concentration SO2 pollution is a problem. Extraction of molybdenum and rhenium from molybdenite concentrates with a pressure oxidative leaching (POX) and solvent extraction (SX) process was studied. A series of POX-SX laboratory and pilot tests were carried out on the molybdenite concentrate. In the POX stage, more than 95% rhenium and 15-20% molybdenum were leached into solution. Solvent extraction recovered the rhenium and molybdenum from the POX solution. The extraction rates of Re and Mo were above 98%. The loaded organic reagent is stripped with ammonia. The stripping ratio of Mo is more than 98%. Compared to the roasting process, the total recovery of Mo increased from 93% to 97%, and Re from 60% to 90%. In the coming five years, POX-SX technology will be competitive in China.

引用

页码：315 / 322

页数：8