Thermodynamic analysis for separation of vanadium and chromium in V(Ⅳ)-Cr(Ⅲ)-H_2O system

作     者：Bian-fang CHEN Sheng HUANG Biao LIU Qi GE Shu-shan XIE Ming-yu WANG Xue-wen WANG 陈边防;黄胜;刘彪;葛奇;谢舒珊;王明玉;王学文

作者机构：School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China 

基　　金：Project(51104186)supported by the National Natural Science Foundation of China Project(2016JJ2142)supported by the Natural Science Foundation of Hunan Province,China Project supported by the Open-End Fund for the Valuable and Precision Instruments of Central South University,China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2018年第28卷第3期

页      码：567-573页

摘      要：To recycle vanadium and chromium from the V?Cr-bearing reducing slag,the thermodynamics of separating V(IV)and Cr(III)at 298 K was summarized in the form of potential-pH diagram and activity-pH *** potential-pH diagrams of V-Mn-H2O and Cr-Mn-H2O systems show that the electrode potential of MnO2/Mn2+is higher than that of VO2+/VO2+but lower than that of Cr2O7 2-/Cr3+,which proves that it is feasible to selectively oxidize low valent vanadium using *** activity-pH diagrams of V(V)-H2O and Cr(III)-H2O systems show that the precipitation pH of V(V)is far lower than that of Cr(III),and therefore V(V)and Cr(III)can be separated through precipitation *** on the thermodynamic analysis,the flowsheet of recovery of vanadium and chromium from the V-Cr-bearing reducing slag is designed.

主 题 词：V-Cr-H2O system vanadium chromium selective oxidation selective precipitation 

学科分类：080602[080602] 080603[080603] 0806[工学-电气类] 08[工学] 0818[工学-交通运输类] 0815[工学-矿业类] 0805[工学-能源动力学] 0813[工学-化工与制药类] 0703[理学-化学类] 0814[工学-地质类] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1016/S1003-6326(18)64689-8

馆 藏 号：203284322...