Selective Separation and Extraction of Vanadium (V) Over Manganese (II) from Co-Leaching Solution of Roasted Stone Coal and Pyrolusite Using Solvent Extraction

被引：19

作者：

Cai, Z. L. ^{[1
,2
]}

Feng, Y. L. ^{[1
]}

Zhou, Y. Z. ^{[1
]}

Li, H. R. ^{[2
]}

Wang, W. D. ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Beijing 100083, Peoples R China

[2] Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China

来源：

JOM | 2013年 / 65卷 / 11期

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：

SPENT CATALYST; FLY-ASH; RECOVERY; MOLYBDENUM; ACID; TECHNOLOGY; MEDIA; IV;

D O I：

10.1007/s11837-013-0768-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on the novel technology for selective separation and extraction of vanadium (V) over manganese (II) from co-leaching solution of roasted stone coal and pyrolusite using solvent extraction, the extraction effect of vanadium (V) and manganese (II) has been studied and many technical conditions have also been optimized. Meanwhile, countercurrent simulation experiments were conducted to verify the results of the experiments. The results indicated that with three countercurrent extraction stages, 99.21% vanadium (V) was extracted using 5% (v/v) N235 and 5% (v/v) secondary octyl alcohol at initial aqueous pH of 3.0 and O/A phase ratio of 1.0. Vanadium (V) could be completely stripped after three-stage countercurrent experiments with 20 wt.% NH4Cl at O/A phase ratio of 1.0. The process flow sheet for the recovery of vanadium (V), as well as manganese (II), was proposed.

引用

页码：1492 / 1498

页数：7

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