Toru H. Okabe

Toru H. Okabe (born December 4, 1965) is a Japanese scientist specializing in materials science, environmental science, resource circulation engineering, and rare metals process engineering, particularly for electronic waste. His most recent work involves the advancement of new processing technology to recycle rare metals like niobium, titanium, yttrium, rhenium, neodymium, other lanthanides and precious metals. He is also involved in sustainable urban mining.

Biography Toru H. Okabe graduated from The Japanese School in London, in 1981, and from Senior High School at Otsuka, University of Tsukuba, Japan, in 1984. He then received his Bachelor's and master's degrees in engineering, Metallurgy, from Kyoto University, Japan, in 1988 and 1990 respectively.

In 2021, Toru H. Okabe received the Degree of Doctor Honoris Causa at the Norwegian University of Science and Technology (NTNU), for working closely with researchers at NTNU for many years, and was appointed an Honorary Doctor at NTNU.

Awards Source: 13th Honda Frontier Prize (Honda-Frontier -shou) from the Honda Memorial Foundation, May 27, 2016 86th Hoko Prize (Hattori-Hoko-Shou) from the Hattori Hokokai Foundation, October 7, 2016. The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science, and Technology (MEXT), Prizes for Science and Technology, Public Understanding Promotion Category, April 17, 2019 TMS Extraction & Processing Division Pyrometallurgy Best Paper Award, February 26, 2020 The Degree of Doctor Honoris Causa at NTNU, Honorary Doctor of the Norwegian University of Science and Technology (NTNU), March 26, 2021 The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology (MEXT), Prizes for Science and Technology, Research Category, April 14, 2021

Noteworthy publications

Original articles

'Preparation and Characterization of Extra-Low-Oxygen Titanium', T. H. Okabe, T. Oishi, and K. Ono: J. Alloy. Compound., vol.184 (1992) pp. 43–56. doi:10.1016/0925-8388(92)90454-H 'Electrochemical Deoxidation of Titanium', T. H. Okabe, M. Nakamura, T. Oishi, and K. Ono: Met. Trans. B, vol.24B, (1993) pp. 449–455. doi:10.1007/BF02666427 'Electrochemical Deoxidation of Yttrium-Oxygen Solid Solution', T. H. Okabe, T. Deura, T. Oishi, K. Ono, and D. R. Sadoway: J. Alloy. Compound., vol.237 (1996) pp. 150–154. doi:10.1016/0925-8388(95)02129-9 'Metallothermic Reduction as an Electronically Mediated Reaction', T. H. Okabe and D. R. Sadoway: J. Mater. Res., vol.12, no.13 (1998) pp. 3372–3377. doi:10.1557/JMR.1998.0459 'Production of Niobium Powder by Electronically Mediated Reaction (EMR) Using Calcium as a Reductant', T. H. Okabe, Il Park, K. T. Jacob, and Y. Waseda: J. Alloy. Compound., vol.288 (1999) pp. 200–210. doi:10.1016/S0925-8388(99)00130-9 'Direct Extraction and Recovery of Neodymium Metal from Magnet Scrap', T. H. Okabe, O. Takeda, K. Fukuda, and Y. Umetsu: Materials Trans. (JIM), vol.44, no.4 (2003) pp. 798–801. doi:10.2320/matertrans.44.798 'Titanium Powder Production by Preform Reduction Process (PRP)', T. H. Okabe, T. Oda, and Y. Mitsuda: J. Alloy. Compound., vol.364 (2004) pp. 156–163. doi:10.1016/S0925-8388(03)00610-8 'Effective Dissolution of Platinum by Using Chloride Salts in Recovery Process', C. Horike, K. Morita, and T. H. Okabe: Metall. Mater. Trans. B, vol.43, no.6 (2012), pp. 1300–1307. doi:10.1007/s11663-012-9746-z 'Direct Oxygen Removal Technique for Recycling Titanium Using Molten MgCl2 Salt', Toru H. Okabe, Y. Hamanaka, and Y. Taninouchi: Faraday Discussions, 190 (2016) pp. 109–126. doi:10.1039/C5FD00229J 'Bottlenecks in Rare Metal Supply and the Importance of Recycling: a Japanese Perspective', Toru H. Okabe: Mineral Proces. Extract. Metall., vol.126, no.1–2, (2017) pp. 22–32. doi:10.1080/03719553.2016.1268855 'Thermodynamic Considerations of Direct Oxygen Removal from Titanium by Utilizing the Deoxidation Capability of Rare Earth Metals', T. H. Okabe, C. Zheng, and Y. Taninouchi: Metall. Mater. Trans. B, vol. 49, no. 3, (2018) pp. 1056–1066. doi:10.1007/s11663-018-1172-4 'Thermodynamic Analysis of Deoxidation of Titanium Through the Formation of Rare Earth Oxyfluorides', T. H. Okabe, Y. Taninouchi, and C. Zheng: Metall. Mater. Trans. B, vol. 49, no. 6, (2018), pp. 3107–3117. doi:10.1007/s11663-018-1386-5

Review articles

'Producing Titanium Through an Electronically Mediated Reaction', T. H. Okabe and Y. Waseda: J. Metal., vol.49 (1997) pp. 28–32. doi:10.1007/BF02914710 'Current Status on Resource and Recycling Technology for Rare Earths', O. Takeda, T. H. Okabe: Metall. Mater. Trans. E, vol.1, no.2, (2014) pp 160–173. doi:10.1007/s40553-014-0016-7 'Current Status of Titanium Recycling and Related Technologies', O. Takeda, T. H. Okabe: J. Metal., vol.71, no.6 (2019) pp. 1981–1990. doi:10.1007/s11837-018-3278-1 'Recent Progress in Titanium Extraction and Recycling', O. Takeda, T. Ouchi, and T. H. Okabe: Metall. Mater. Transact. B, (2020) pp. 1315–1328. doi:10.1007/s11663-020-01898-6

Books

'Removal of Oxygen in Reactive Metals' in Purification Process and Characterization of Ultra High Purity Metals, T. H. Okabe (Shared author): edited by Y. Waseda and M. Isshiki, Springer, Berlin (2001) (total 411 pages) pp. 3–37. ISBN 978-3-642-56255-6 Extractive Metallurgy of Titanium, 1st Edition: Conventional and Recent Advances in Extraction and Production of Titanium Metal, T. H. Okabe (Shared author): Editors: Z. Z. Fang, F. Froes, Y. Zhang, Elsevier (2019) (Page Count: 436). Paperback ISBN 9780128172001, eBook ISBN 9780128172018 Chapter 5 - Fundamentals of thermochemical reduction of TiCl4 (T. H. Okabe and O. Takeda) pp. 65–96. Chapter 8 - Metallothermic reduction of TiO2 (T. H. Okabe) pp. 131–164. Chapter 16 - Recycling of Ti (O. Takeda and T. H. Okabe) pp. 363–388.

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