Recycling of Ti

Osamu Takeda; Toru H. Okabe

doi:10.1016/B978-0-12-817200-1.00016-8

Recycling of Ti

Osamu Takeda, Toru H. Okabe

ENG - Metallurgy

The University of Tokyo

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

3 Citations (Scopus)

Abstract

At present, the major resource for recycling titanium (Ti) is in-house Ti scraps generated during smelting and fabrication processes instead of post-consumer Ti products. Although the nominal recycling ratio of post-consumer Ti products is low, the actual recycling rate including cascade recycling in the smelting and fabrication industry is high. The major impurities in Ti scrap are oxygen (O) and iron (Fe). High-grade Ti scrap with low O and Fe concentrations is used for remelting Ti and its alloys. However, low-grade Ti scrap with high O and Fe concentrations is used as ferro-titanium in the steel industry (cascade recycling). However, if the demand for Ti drastically increases, the amount of generated low-grade Ti scrap will exceed the demand for ferro-titanium. Considering this situation, technologies for the anti-contamination or efficient O and Fe removal must be developed for the efficient utilization of Ti. In this chapter, the current status of Ti scrap generation and its recycling flow are reviewed. New developments in Ti recycling technology are also discussed.

Original language	English
Title of host publication	Extractive Metallurgy of Titanium
Subtitle of host publication	Conventional and Recent Advances in Extraction and Production of Titanium Metal
Publisher	Elsevier Inc.
Pages	363-387
Number of pages	25
ISBN (Electronic)	9780128172001
ISBN (Print)	9780128172018
DOIs	https://doi.org/10.1016/B978-0-12-817200-1.00016-8
Publication status	Published - 2019 Nov 8

Keywords

Contamination
Recycling
Refining
Scrap
Titanium

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10.1016/B978-0-12-817200-1.00016-8

Cite this

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title = "Recycling of Ti",

abstract = "At present, the major resource for recycling titanium (Ti) is in-house Ti scraps generated during smelting and fabrication processes instead of post-consumer Ti products. Although the nominal recycling ratio of post-consumer Ti products is low, the actual recycling rate including cascade recycling in the smelting and fabrication industry is high. The major impurities in Ti scrap are oxygen (O) and iron (Fe). High-grade Ti scrap with low O and Fe concentrations is used for remelting Ti and its alloys. However, low-grade Ti scrap with high O and Fe concentrations is used as ferro-titanium in the steel industry (cascade recycling). However, if the demand for Ti drastically increases, the amount of generated low-grade Ti scrap will exceed the demand for ferro-titanium. Considering this situation, technologies for the anti-contamination or efficient O and Fe removal must be developed for the efficient utilization of Ti. In this chapter, the current status of Ti scrap generation and its recycling flow are reviewed. New developments in Ti recycling technology are also discussed.",

keywords = "Contamination, Recycling, Refining, Scrap, Titanium",

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

note = "Funding Information: The authors are grateful to Professor Toshiyuki Obikawa and Professor Akira Hashimoto of The University of Tokyo, Mr. Rob Henderson of Boeing Japan KK, Mr. Osamu Koike and Mr. Kazuhiro Kinoshita of the Japan Titanium Society, Mr. Kazuhiro Taki of Toho Technical Service Co. Ltd., Mr. Yuichi Ono of Toho Titanium Co. Ltd., Mr. Kotaro Watanabe of the Japan Association for Trade with Russia & New Independent States (NIS), and Associate Professor Yuki Taninouchi of Kyoto University for their valuable comments and suggestion. This research was partly funded by a Grant-in-Aid for Scientific Research (S) (KAKENHI Grant #26220910, and 19H05623) by JSPS. Publisher Copyright: {\textcopyright} 2020 Elsevier Inc. All rights reserved.",

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AU - Okabe, Toru H.

N1 - Funding Information: The authors are grateful to Professor Toshiyuki Obikawa and Professor Akira Hashimoto of The University of Tokyo, Mr. Rob Henderson of Boeing Japan KK, Mr. Osamu Koike and Mr. Kazuhiro Kinoshita of the Japan Titanium Society, Mr. Kazuhiro Taki of Toho Technical Service Co. Ltd., Mr. Yuichi Ono of Toho Titanium Co. Ltd., Mr. Kotaro Watanabe of the Japan Association for Trade with Russia & New Independent States (NIS), and Associate Professor Yuki Taninouchi of Kyoto University for their valuable comments and suggestion. This research was partly funded by a Grant-in-Aid for Scientific Research (S) (KAKENHI Grant #26220910, and 19H05623) by JSPS. Publisher Copyright: © 2020 Elsevier Inc. All rights reserved.

PY - 2019/11/8

Y1 - 2019/11/8

N2 - At present, the major resource for recycling titanium (Ti) is in-house Ti scraps generated during smelting and fabrication processes instead of post-consumer Ti products. Although the nominal recycling ratio of post-consumer Ti products is low, the actual recycling rate including cascade recycling in the smelting and fabrication industry is high. The major impurities in Ti scrap are oxygen (O) and iron (Fe). High-grade Ti scrap with low O and Fe concentrations is used for remelting Ti and its alloys. However, low-grade Ti scrap with high O and Fe concentrations is used as ferro-titanium in the steel industry (cascade recycling). However, if the demand for Ti drastically increases, the amount of generated low-grade Ti scrap will exceed the demand for ferro-titanium. Considering this situation, technologies for the anti-contamination or efficient O and Fe removal must be developed for the efficient utilization of Ti. In this chapter, the current status of Ti scrap generation and its recycling flow are reviewed. New developments in Ti recycling technology are also discussed.

AB - At present, the major resource for recycling titanium (Ti) is in-house Ti scraps generated during smelting and fabrication processes instead of post-consumer Ti products. Although the nominal recycling ratio of post-consumer Ti products is low, the actual recycling rate including cascade recycling in the smelting and fabrication industry is high. The major impurities in Ti scrap are oxygen (O) and iron (Fe). High-grade Ti scrap with low O and Fe concentrations is used for remelting Ti and its alloys. However, low-grade Ti scrap with high O and Fe concentrations is used as ferro-titanium in the steel industry (cascade recycling). However, if the demand for Ti drastically increases, the amount of generated low-grade Ti scrap will exceed the demand for ferro-titanium. Considering this situation, technologies for the anti-contamination or efficient O and Fe removal must be developed for the efficient utilization of Ti. In this chapter, the current status of Ti scrap generation and its recycling flow are reviewed. New developments in Ti recycling technology are also discussed.

KW - Contamination

KW - Recycling

KW - Refining

KW - Scrap

KW - Titanium

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SN - 9780128172018

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EP - 387

BT - Extractive Metallurgy of Titanium

PB - Elsevier Inc.

ER -

Recycling of Ti

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Keywords

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