| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Process Metallurgy and Environmental Engineering: An EPD Symposium in Honor of Takashi Nakamura
|
| Presentation Title |
Up-grade Recycling of Titanium and Its Alloys |
| Author(s) |
Toru H. Okabe, Takanari Ouchi |
| On-Site Speaker (Planned) |
Toru H. Okabe |
| Abstract Scope |
It is necessary to develop a new process to efficiently remove oxygen in Ti directly from Ti scrap in order to promote the recycling of Ti scrap. However, it is difficult to remove oxygen directly from solid Ti and its alloys. In this study, we developed new techniques to remove dissolved oxygen directly from Ti through thermochemical or electrochemical reactions using rare-earth metals or a combination of rare-earth metals and molten salts. Based on the thermodynamic analysis and experimental verifications, we found that it is possible to remove oxygen in Ti and Ti alloys below 100 mass ppm level directly from high-oxygen-containing metals. This technology is expected to be a new process to remove oxygen directly and efficiently from Ti scrap. Furthermore, the proposed deoxidation technique can be applied to a new smelting process of Ti from its oxide feeds. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Extraction and Processing, Titanium, Recycling and Secondary Recovery |