Study on Extracting Vanadium by Adding Barium Sulfate Roasting-Acid Leaching from Clay Vanadium Ore

被引：0
|
作者：
Zhu J. [1 ,2 ]
Kang M. [1 ]
Li W. [1 ]
Wang B. [1 ,2 ]
Qi J. [3 ]
Li S. [1 ]
Liu D. [1 ]
机构：
[1] School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an
[2] Shaanxi Provincial Advanced Energy Storage and Vanadium New Materials Engineering Technology Research Center, Ankang
[3] Northwest Institute of Nonferrous Geology, Xi'an
来源：
Cailiao Daobao/Materials Reports | 2020年 / 34卷 / 24期
基金：
中国国家自然科学基金;
关键词：
Acid leaching; Barium sulfate; Clay vanadium ore; Mechanism; Roasting;
D O I：
10.11896/cldb.19100158
中图分类号：
学科分类号：
摘要：
The roasting-acid leaching method with barium sulfate is used to extract vanadium from clay vanadium ore in a certain place, Henan Pro-vince, and the influence of roasting and leaching conditions on the leaching rate of vanadium is analyzed. The results show that the roas-ting temperature has a significant effect on the leaching rate of vanadium. The leaching effect of vanadium is better in a proper calcination tempe-rature range. Vanadium ore is roasted at 900℃ with 12% barium sulfate for 4 h to obtain the roasted sample. The leaching rate of vanadium is up to 79.16% under the conditions of 8% sulfuric acid concentration, 60℃ leaching temperature, 2 h leaching time and 2: 1 liquid-solid ratio. The results prove that it is feasible to extract vanadium by roasting with barium sulfate as additive, and the research on roasting mechanism indicates that barium sulfate can destroy the crystal structure of the clay vanadium ore, and promote vanadium oxide form vanadate soluble in dilute sulfuric acid. © 2020, Materials Review Magazine. All right reserved.
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收藏
页码：24061 / 24067
页数：6
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