Thermodynamics of vanadium-sulfur-water systems at 298 K

被引：111

作者：

Zhou, Xuejiao ^{[1
]}

Wei, Chang ^{[1
]}

Li, Minting ^{[1
]}

Qiu, Shuang ^{[1
]}

Li, Xingbin ^{[1
]}

机构：

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

来源：

HYDROMETALLURGY | 2011年 / 106卷 / 1-2期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

Thermodynamics; Vanadium; Eh-pH diagrams; Sulfate complexes; Ion exchange resin; ION-EXCHANGE-RESIN; LEACH SOLUTION; RECOVERY; EXTRACTION; REMOVAL;

D O I：

10.1016/j.hydromet.2010.12.003

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The thermodynamics of vanadium-sulfur-water systems are summarized in the form of potential-pH and activity-pH diagrams, calculated from published standard Gibbs energies of formation of the various species and phases considered. The potential-pH diagrams for V-S-H2O show that SO42- and HSO4- ions obviously enlarge the regions of stability of V3+, VO2+ and VO2+ ions, forming VSO4+, VOSO4(aq) and VO2SO4- at low pH range 0-5. Combining data in the existing literature with thermodynamic analysis, some examples of vanadium extraction and removal from vanadium stock solutions are discussed. Rational explanations are given for the behavior of vanadium. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.

引用

页码：104 / 112

页数：9

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