Fundamental study on synthesis and enrichment of titanium subchloride

Osamu Takeda; Toru H. Okabe

doi:10.1016/j.jallcom.2007.02.128

Fundamental study on synthesis and enrichment of titanium subchloride

Osamu Takeda, Toru H. Okabe

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

In order to establish a new high-speed/(semi-)continuous titanium production process based on the magnesiothermic reduction of titanium subchlorides (subhalide reduction process), a novel synthetic process for obtaining titanium subchlorides (TiCl_x, x = 2, 3) by the reaction of titanium tetrachloride (TiCl₄) with titanium metal at 1273 K was investigated. It was demonstrated that the efficiency of the TiCl_x formation improved drastically when molten salts were used as the reaction medium as compared with that of the synthesis by employing the direct reaction of TiCl₄ gas with solid titanium. The feasibility of the enrichment process of TiCl_x in molten salt was also demonstrated. The method for producing the titanium subchlorides investigated in this study can be applied to the new high-speed production process of titanium.

Original language	English
Pages (from-to)	376-383
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	457
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2007.02.128
Publication status	Published - 2008 Jun 12
Externally published	Yes

Keywords

Molten salt
Subhalide reduction process
Synthesis
Titanium
Titanium subchloride

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2007.02.128

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title = "Fundamental study on synthesis and enrichment of titanium subchloride",

abstract = "In order to establish a new high-speed/(semi-)continuous titanium production process based on the magnesiothermic reduction of titanium subchlorides (subhalide reduction process), a novel synthetic process for obtaining titanium subchlorides (TiClx, x = 2, 3) by the reaction of titanium tetrachloride (TiCl4) with titanium metal at 1273 K was investigated. It was demonstrated that the efficiency of the TiClx formation improved drastically when molten salts were used as the reaction medium as compared with that of the synthesis by employing the direct reaction of TiCl4 gas with solid titanium. The feasibility of the enrichment process of TiClx in molten salt was also demonstrated. The method for producing the titanium subchlorides investigated in this study can be applied to the new high-speed production process of titanium.",

keywords = "Molten salt, Subhalide reduction process, Synthesis, Titanium, Titanium subchloride",

author = "Osamu Takeda and Okabe, {Toru H.}",

note = "Funding Information: The authors are grateful to Professors Masafumi Maeda, Susumu Nanao Yoshitaka Mitsuda, and Kazuki Morita of the University of Tokyo and Professor Tetsuya Uda of Kyoto University for their valuable discussions throughout this project. The authors also thank Mr. Susumu Kosemura, Mr. Masanori Yamaguchi, and Mr. Yuichi Ono of Toho Titanium Co. Ltd. for their valuable discussions and for providing the samples. This work was financially supported by a Grant-in-Aid for Scientific Research (B) from the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT, Project ID #18360365). One of the authors, O. Takeda, is grateful for the financial support provided by a Grant for the 21st Century COE Program “Human-friendly Materials based on Chemistry” from MEXT and the financial support provided by Research Fellowships of the Japan Society for the Promotion of Science (JSPS) for Young Scientists.",

year = "2008",

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doi = "10.1016/j.jallcom.2007.02.128",

language = "English",

volume = "457",

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journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

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AU - Takeda, Osamu

AU - Okabe, Toru H.

N1 - Funding Information: The authors are grateful to Professors Masafumi Maeda, Susumu Nanao Yoshitaka Mitsuda, and Kazuki Morita of the University of Tokyo and Professor Tetsuya Uda of Kyoto University for their valuable discussions throughout this project. The authors also thank Mr. Susumu Kosemura, Mr. Masanori Yamaguchi, and Mr. Yuichi Ono of Toho Titanium Co. Ltd. for their valuable discussions and for providing the samples. This work was financially supported by a Grant-in-Aid for Scientific Research (B) from the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT, Project ID #18360365). One of the authors, O. Takeda, is grateful for the financial support provided by a Grant for the 21st Century COE Program “Human-friendly Materials based on Chemistry” from MEXT and the financial support provided by Research Fellowships of the Japan Society for the Promotion of Science (JSPS) for Young Scientists.

PY - 2008/6/12

Y1 - 2008/6/12

N2 - In order to establish a new high-speed/(semi-)continuous titanium production process based on the magnesiothermic reduction of titanium subchlorides (subhalide reduction process), a novel synthetic process for obtaining titanium subchlorides (TiClx, x = 2, 3) by the reaction of titanium tetrachloride (TiCl4) with titanium metal at 1273 K was investigated. It was demonstrated that the efficiency of the TiClx formation improved drastically when molten salts were used as the reaction medium as compared with that of the synthesis by employing the direct reaction of TiCl4 gas with solid titanium. The feasibility of the enrichment process of TiClx in molten salt was also demonstrated. The method for producing the titanium subchlorides investigated in this study can be applied to the new high-speed production process of titanium.

AB - In order to establish a new high-speed/(semi-)continuous titanium production process based on the magnesiothermic reduction of titanium subchlorides (subhalide reduction process), a novel synthetic process for obtaining titanium subchlorides (TiClx, x = 2, 3) by the reaction of titanium tetrachloride (TiCl4) with titanium metal at 1273 K was investigated. It was demonstrated that the efficiency of the TiClx formation improved drastically when molten salts were used as the reaction medium as compared with that of the synthesis by employing the direct reaction of TiCl4 gas with solid titanium. The feasibility of the enrichment process of TiClx in molten salt was also demonstrated. The method for producing the titanium subchlorides investigated in this study can be applied to the new high-speed production process of titanium.

KW - Molten salt

KW - Subhalide reduction process

KW - Synthesis

KW - Titanium

KW - Titanium subchloride

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Fundamental study on synthesis and enrichment of titanium subchloride

Abstract

Keywords

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