Electrochemical Reduction Behavior of Soluble CaTiO3 in Na3AlF6-AlF3 Melt for the Preparation of Metal Titanium
Weng, Wei1; Wang, Mingyong2; Gong, Xuzhong2; Wang, Zhi2; Wang, Dong2; Guo, Zhancheng1
2017
发表期刊JOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN0013-4651
卷号164期号:9页码:D551-D557
摘要Direct preparation of metal titanium from soluble CaTiO3 in the Na3AlF6-AlF3 melt by electrolysis was confirmed, providing a short route for the high value utilization of CaTiO3 concentrates obtained from the titanium bearing blast furnace slag. The solubility of CaTiO3 in the Na3AlF6-AlF3 melt at 1253 K was determined by the isothermal saturation method and the electrochemical reduction behavior of TiO32-was investigated by cyclic voltammogram, square wave voltammogram, open circuit potential and potentiostatic electrolysis. The results indicated that the solubility of CaTiO3 in the melt was 2.4% at 1253 K. The TiO32-ions were reduced to metal titanium by the consecutive three-step reduction reactions: TiO32--> TiO -> Ti2O -> Ti. The diffusion coefficient of TiO32-in the Na3AlF6-AlF3 melt was 6.7 x 10-(6) cm(2)s-(1) at 1253 K. The deposited metal titanium was successfully separated with Na3AlF6 by evaporation at 1823 K. (C) 2017 The Electrochemical Society. All rights reserved.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1149/2.0611709jes
收录类别SCI
语种英语
关键词[WOS]CRYOLITE-ALUMINA MELTS ; MOLTEN CACL2 ; PEROVSKITE PHASE ; CAO-TIO2-SIO2-AL2O3-MGO MELT ; SUPER GRAVITY ; SOLUBILITY ; TIO2 ; OXIDES ; ELECTROLYSIS ; OXIDATION
WOS研究方向Electrochemistry ; Materials Science
WOS类目Electrochemistry ; Materials Science, Coatings & Films
WOS记录号WOS:000413256400164
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/122111/23284
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
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Weng, Wei,Wang, Mingyong,Gong, Xuzhong,et al. Electrochemical Reduction Behavior of Soluble CaTiO3 in Na3AlF6-AlF3 Melt for the Preparation of Metal Titanium[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2017,164(9):D551-D557.
APA Weng, Wei,Wang, Mingyong,Gong, Xuzhong,Wang, Zhi,Wang, Dong,&Guo, Zhancheng.(2017).Electrochemical Reduction Behavior of Soluble CaTiO3 in Na3AlF6-AlF3 Melt for the Preparation of Metal Titanium.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,164(9),D551-D557.
MLA Weng, Wei,et al."Electrochemical Reduction Behavior of Soluble CaTiO3 in Na3AlF6-AlF3 Melt for the Preparation of Metal Titanium".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 164.9(2017):D551-D557.
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