Chlorination and purification of vanadium pentoxide with anhydrous aluminum chloride
Jiang, Dan-dan1,2,3; Zhang, Hong-ling1,2; Xu, Hong-bin1,2; Zhang, Yi1,2
2017-06-30
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
卷号709页码:505-510
摘要A novel chlorination process was investigated to prepare high-purity vanadium pentoxide (V2O5). Anhydrous aluminum chloride (AlCl3) instead of toxic and corrosive chlorine (Cl-2) was used as the chlorination agent. The chlorination temperature was decreased as low as 160 degrees C-170 degrees C. By adding sodium chloride (NaCl) into the chlorination system, the reaction rate and purity of the intermediate product, vanadium oxytrichloride (VOCl3) were both remarkably improved. Additionally, hydrolysis conditions were also discussed. It was found that the precipitation rate reached 93.56% under the conditions of vanadium concentration of 13.4-68.8 (V2O5)g/L and the ammonium adding coefficient of 0.8-1.0. Based on the optimal conditions, V2O5 with a purity of 99.95 wt% at least was obtained, the content of Fe, Al, Si, K, Na, Zn, P and other impurities were effectively reduced. Compared with the preparation method currently used in the industrial process, the novel chlorination method proposed is an environmently-friendly process with the low cost, high selectivity, and simplified operation advantages. Therefore, the novel chlorination method exhibits a competitive potential in industrial application. (C) 2017 Elsevier B.V. All rights reserved.
关键词High-purity Vanadium Pentoxide Anhydrous Aluminum Chloride Sodium Chloride Chlorination Vanadium Oxytrichloride
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jallcom.2017.03.123
收录类别SCI
语种英语
关键词[WOS]SOLVENT-EXTRACTION ; FLY-ASH ; RECOVERY ; SLAG ; SEPARATION ; MECHANISM ; OXIDATION ; CATALYSTS ; NICKEL ; MEDIA
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者National Basic Research Program of China (973 Program)(2013CB632606)
WOS记录号WOS:000401042300061
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22534
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Jiang, Dan-dan,Zhang, Hong-ling,Xu, Hong-bin,et al. Chlorination and purification of vanadium pentoxide with anhydrous aluminum chloride[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,709:505-510.
APA Jiang, Dan-dan,Zhang, Hong-ling,Xu, Hong-bin,&Zhang, Yi.(2017).Chlorination and purification of vanadium pentoxide with anhydrous aluminum chloride.JOURNAL OF ALLOYS AND COMPOUNDS,709,505-510.
MLA Jiang, Dan-dan,et al."Chlorination and purification of vanadium pentoxide with anhydrous aluminum chloride".JOURNAL OF ALLOYS AND COMPOUNDS 709(2017):505-510.
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