|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Magnesium Technology 2017
||Experimental Investigation of Continuous Magnesium Production by Carbothermal Reduction
||Boris Chubukov, Scott Rowe, Aaron Palumbo, Illias Hischier, Alan Weimer
|On-Site Speaker (Planned)
Magnesium production by carbothermal reduction (CTR) has the potential to significantly reduce operational costs relative to reduction by ferrosilicon or magnesium chloride electrolysis. As magnesium is gaseous at CTR reaction temperatures the challenge remains effective separation of magnesium vapor and CO by-product, which can recombine unproductively. Our preliminary investigations focused on carbothermal kinetics and magnesium yield in batch reactions at isothermal and isobaric conditions. To simulate continuous production, magnesium metal was boiled in a thermogravimetric system and mixed with CO in a tubular condenser. Monitoring of the CO signal by IR allowed for determination of the extent of reversion, and analysis of deposits revealed the purity of the product Mg. The effect of pressure and temperature were investigated in both systems. Based on these results a continuous moving bed condenser was fabricated to determine the feasibility of vapor product capture from CTR.