Recycling titanium and its alloys by utilizing molten salt

Toru H. Okabe; Yu Ki Taninouchi

doi:10.1007/978-3-319-48769-4_80

Recycling titanium and its alloys by utilizing molten salt

Toru H. Okabe, Yu Ki Taninouchi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

It is commonly believed that the deoxidation of titanium (Ti), or the direct removal of oxygen (O) dissolved in metallic Ti, is practically impossible when magnesium (Mg) is used as the deoxidizing agent. In recent years, it has been experimentally demonstrated that O dissolved in Ti can be directly removed using MgCl₂molten salt electrolysis. By the electrochemical deoxidation technique, Ti wires containing 0.12 mass% O were deoxidized to less than 0.02 mass% O. In some cases, the concentration of O in the Ti wires was reduced to the level of 0.01 mass% O, which cannot be attained using the current Kroll process. The possible application of this deoxidation technique to practical industrial recycling processes is also discussed.

Original language	English
Title of host publication	Advances in Molten Slags, Fluxes, and Salts
Subtitle of host publication	Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016
Editors	Ramana G. Reddy, Pinakin Chaubal, P. Chris Pistorius, Uday Pal
Publisher	Springer International Publishing AG
Pages	751-760
Number of pages	10
ISBN (Print)	9783319486253
DOIs	https://doi.org/10.1007/978-3-319-48769-4_80
Publication status	Published - 2016
Externally published	Yes
Event	10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016 - Seattle, United States Duration: May 22 2016 → May 25 2016

Publication series

Name	Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016

Conference

Conference	10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016
Country/Territory	United States
City	Seattle
Period	5/22/16 → 5/25/16

All Science Journal Classification (ASJC) codes

Mechanical Engineering
Mechanics of Materials
Materials Chemistry
Metals and Alloys

Access to Document

10.1007/978-3-319-48769-4_80

Cite this

Okabe, T. H., & Taninouchi, Y. K. (2016). Recycling titanium and its alloys by utilizing molten salt. In R. G. Reddy, P. Chaubal, P. C. Pistorius, & U. Pal (Eds.), Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016 (pp. 751-760). (Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016). Springer International Publishing AG. https://doi.org/10.1007/978-3-319-48769-4_80

Recycling titanium and its alloys by utilizing molten salt. / Okabe, Toru H.; Taninouchi, Yu Ki.

Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016. ed. / Ramana G. Reddy; Pinakin Chaubal; P. Chris Pistorius; Uday Pal. Springer International Publishing AG, 2016. p. 751-760 (Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Okabe, TH & Taninouchi, YK 2016, Recycling titanium and its alloys by utilizing molten salt. in RG Reddy, P Chaubal, PC Pistorius & U Pal (eds), Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016. Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016, Springer International Publishing AG, pp. 751-760, 10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016, Seattle, United States, 5/22/16. https://doi.org/10.1007/978-3-319-48769-4_80

Okabe TH, Taninouchi YK. Recycling titanium and its alloys by utilizing molten salt. In Reddy RG, Chaubal P, Pistorius PC, Pal U, editors, Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016. Springer International Publishing AG. 2016. p. 751-760. (Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016). doi: 10.1007/978-3-319-48769-4_80

Okabe, Toru H. ; Taninouchi, Yu Ki. / Recycling titanium and its alloys by utilizing molten salt. Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016. editor / Ramana G. Reddy ; Pinakin Chaubal ; P. Chris Pistorius ; Uday Pal. Springer International Publishing AG, 2016. pp. 751-760 (Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016).

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abstract = "It is commonly believed that the deoxidation of titanium (Ti), or the direct removal of oxygen (O) dissolved in metallic Ti, is practically impossible when magnesium (Mg) is used as the deoxidizing agent. In recent years, it has been experimentally demonstrated that O dissolved in Ti can be directly removed using MgCl2molten salt electrolysis. By the electrochemical deoxidation technique, Ti wires containing 0.12 mass% O were deoxidized to less than 0.02 mass% O. In some cases, the concentration of O in the Ti wires was reduced to the level of 0.01 mass% O, which cannot be attained using the current Kroll process. The possible application of this deoxidation technique to practical industrial recycling processes is also discussed.",

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Recycling titanium and its alloys by utilizing molten salt

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