期刊
INTERNATIONAL JOURNAL OF MINERAL PROCESSING
卷 148, 期 -, 页码 100-104出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.minpro.2016.01.013
关键词
Roasting; Calcium Iron; Stone coal; Reducing impurities
资金
- Natural Science Foundation of Hubei Province of China [2015CFB221]
- Fundamental Research Funds for the Central Universities (WUT) [2015IVA030]
- Ministry of Science and Technology of China [2011BAB05B01]
The behaviors of impurity elements Ca and Fe in vanadium-bearing stone coal during roasting were investigated in two aspects: combining with vanadium and reacting with other phases. As compared to Na, Ca was more easily combined with vanadium generating water-insoluble calcium-bearing vanadate during roasting. The phase distribution calculated by FactSage showed that Ca reacted with quartz and albite to form amorphous phases, resulting in the entrapment of vanadium, thereby decreasing vanadium recovery markedly. In contrast, Fe in stone coal did not affect vanadium recovery as it did not combine with vanadium and not react with other phases during roasting. In order to decrease the negative effects derived from the impurity elements such as Ca, a control measure of concentrating vanadium and reducing impurities treatment was carried out to decrease the dosage of Na2SO4 and improve vanadium recovery. (C) 2016 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据