Solubility Data for the KOH-K2CO3-K3VO4-H2O System at (313.15 and 353.15) K

被引：4
|
作者：
Yang, Na [1 ,2 ]
Du, Hao [1 ]
Wang, Shaona [1 ]
Zheng, Shili [1 ]
Zhang, Yi [1 ]
机构：
[1] Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
[2] Beijing Shenwu Environm & Energy Technol Co Ltd, Beijing 102200, Peoples R China
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2013年 / 58卷 / 03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：
VANADIUM;
D O I：
10.1021/je301157h
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The effective separation of K3VO4 and K2CO3 from KOH-K2CO3-K3VO4-H2O system plays an important role in a new vanadium production process developed by the Institute of Process Engineering, Chinese Academy of Sciences. In order to design an effective separation strategy, the dissolution behavior of K3VO4 and K2CO3 in KOH-K2CO3-K3VO4-H2O system at (313.15 and 353.15) K was investigated, and the solubility isotherms were plotted. In addition, the solubility of K3VO4 in KOH solutions was compared with that in K2CO3 saturated KOH solutions, and the solubility of K2CO3 in KOH solutions was also compared with that in K3VO4 saturated KOH solutions. From the solubility data analysis, a method of first separation K2CO3 via cooling crystallization followed by separation K3VO4 via cooling crystallization in the concentrated alkaline solution was proposed.
引用
收藏
页码：677 / 681
页数：5
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