A novel method to extract vanadium from vanadium-bearing steel slag using sodium carbonate solution

被引：14

作者：

Gao, Ming-lei ^{[1
,2
]}

Xue, Xiang-xin ^{[1
]}

Li, Lan-jie ^{[2
]}

Yang, He ^{[1
]}

Bai, Rui-guo ^{[2
]}

Wang, Hai-xue ^{[2
]}

机构：

[1] Northeastern Univ, Sch Met, Shenyang 110004, Liaoning, Peoples R China

[2] Inst Vanadium Titanium Technol, HBIS Grp ChengSteel, Chengde 067102, Hebei, Peoples R China

来源：

PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING | 2018年 / 54卷 / 03期

基金：

中国国家自然科学基金;

关键词：

vanadium-bearing steel slag; leaching; vanadium; kinetics;

D O I：

10.5277/ppmp1893

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new method using sodium carbonate solution to treat a vanadium-bearing steel slag is proposed. The effects of the particle size, solid-to-liquid ratio, initial concentration of sodium carbonate solution, leaching temperature and stirring speed on the leaching rate of vanadium were investigated. The leaching kinetics of vanadium from the vanadium-bearing steel slag was studied, which indicated that the leaching rate was controlled by the step of diffusion through the solid layer around the unreacted core. The apparent activation energy for the process was 13.75 kJ/mol. By using this process, vanadium could be extracted effectively with the leaching rate of more than 80%.

引用

页码：911 / 921

页数：11

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