Formation behavior of CaTiO3 during electrochemical deoxidation of ilmenite concentrate to prepare Fe–Ti alloy

The formation behavior of CaTiO3 during electro-deoxidization of ilmenite concentrate to prepare Fe–Ti alloy was investigated by experiments and simulation.The results indicate that the formation and decomposition of intermediate products,CaTiO3,are inevitable steps during electro-deoxidization of i...

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Bibliographic Details
Published in:Rare metals 2016-03, Vol.35 (3), p.275-281
Main Authors: Liu, Xu-Yang, Hu, Mei-Long, Bai, Chen-Guang, Lv, Xue-Wei
Format: Article
Language:English
Subjects:
Biomaterials
CaTiO3
Chemistry and Materials Science
Energy
Materials Engineering
Materials Science
Metallic Materials
Nanoscale Science and Technology
Physical Chemistry
电化学反应
精矿
脱氧
行为
还原制备
钛合金
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Summary:The formation behavior of CaTiO3 during electro-deoxidization of ilmenite concentrate to prepare Fe–Ti alloy was investigated by experiments and simulation.The results indicate that the formation and decomposition of intermediate products,CaTiO3,are inevitable steps during electro-deoxidization of ilmenite concentrate.CaTiO3 can be generated through the hydrolyzation of molten salt and electrochemistry reaction during electrochemical process.The main reason for the generation of CaTiO3 is the electrochemistry reaction between Ca^2＋ from molten salt and TiO2 in the cathode.With the proceeding of the electro-deoxidization,CaTiO3 is further electrolyzed to form titanium sub-oxide.The current efficiency can be improved when CaTiO3 forms in the cathode by adding CaCO3 during sintering process.
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-014-0355-7