| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
REWAS 2022: Recovering the Unrecoverable
|
| Presentation Title |
Recycling of Tungsten by Molten Salt Processes |
| Author(s) |
Tetsuo Oishi |
| On-Site Speaker (Planned) |
Tetsuo Oishi |
| Abstract Scope |
Tungsten(W) is one of the most important metals in various industries, especially in the machining industries. At least 60% of W is consumed in cemented carbide or super hard alloy in Japan and the US. Most major recycling method for cemented carbides is the hydrometallurgical process combined with the roasting step, which oxidizes W in the scrap into tungsten oxide. On the other hand, molten salt process has certain advantages in terms of processing rate, simplicity and so on. In this presentation, recycling processes for W using molten salt will be reviewed. After that, our new recycling process using molten hydroxide will be introduced and the recent progress on this process will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electrometallurgy, Recycling and Secondary Recovery, Pyrometallurgy |