|About this Abstract
|2022 TMS Annual Meeting & Exhibition
|Historical Developments and Status of Carbothermal Reduction Technology to Produce Magnesium Metal
|Aaron Palumbo, Boris A Chubukov
|On-Site Speaker (Planned)
Carbothermal reduction (CTR) technology for Mg metal production was realized by F.J. Hansgirg in the 1930’s, but the process was unprofitable after the end of the WWII. Since then, many attempts have been made to demonstrate inherent advantages of CTR: low energy intensity and corresponding economic value proposition by reducing the production costs. The operating paradigms of historical and current attempts used to prove technical feasibility have been centralized on the condenser, where Mg-vapor and byproduct CO-gas are separated by phase change. Preventing reversion, or re-oxidation of Mg-products, was the focus of most efforts as embodied by the development of a converging-diverging nozzle and the use of inert solvents, such as oils, molten metals, and salts. These historical developments in CTR-technology provide context to guide a holistic approach to designing a robust and economically viable CTR-process where the condenser is just one part.
|Magnesium, Pyrometallurgy, Process Technology