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Selective hydrolysis of trace TiCl4 from VOCl3 for preparation of high purity V2O5
Fan, Chuanlin1; Yang, Haitao1; Zhu, Qingshan1,2
2017-09-12
发表期刊SEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
卷号185页码:196-201
摘要Given the strong demands for high purity vanadium products dedicated for all-vanadium redox flow battery (VRFB), numerous preparation technologies have been developed. One of them, the chloride process that using vanadium oxytrichloride (VOCl3) as purification intermediate presents distinct technical advantages. The intermediate is readily purified via distillation process to remove most of the impurities. However, the trace titanium tetrachloride (TiCl4) is difficult to be removed, due to close saturated vapor pressures. In present work, based on thermodynamic calculation and analyses, we found that TiCl4 reacts with water significant preferentially to form the corresponding oxide, compared with VOCl3. Then we proposed a novel method to remove trace TiCl4 from VOCl3 by selective hydrolysis - distillation. The related experiments were conducted and validated the feasibility of the innovative process. Vanadium pentoxide (V2O5) with purity higher than 99.99 wt% (4N) was further prepared from the purified VOCl3 by precipitation calcination. (C) 2017 Elsevier B.V. All rights reserved.
关键词High Purity Vanadium Pentoxide Chlorination Process Vanadium Oxytrichloride Titanium Tetrachloride Selective Hydrolysis
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.seppur.2017.05.002
收录类别SCI
语种英语
关键词[WOS]REDOX FLOW BATTERIES ; VANADIUM ; ELECTROLYTE ; PERFORMANCE ; SEPARATION ; EXTRACTION ; STORAGE ; ENERGY
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Natural Science Foundation of China(51504232 ; 51504231 ; 21325628)
WOS记录号WOS:000404310900020
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22709
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Fan, Chuanlin,Yang, Haitao,Zhu, Qingshan. Selective hydrolysis of trace TiCl4 from VOCl3 for preparation of high purity V2O5[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2017,185:196-201.
APA Fan, Chuanlin,Yang, Haitao,&Zhu, Qingshan.(2017).Selective hydrolysis of trace TiCl4 from VOCl3 for preparation of high purity V2O5.SEPARATION AND PURIFICATION TECHNOLOGY,185,196-201.
MLA Fan, Chuanlin,et al."Selective hydrolysis of trace TiCl4 from VOCl3 for preparation of high purity V2O5".SEPARATION AND PURIFICATION TECHNOLOGY 185(2017):196-201.
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