US 12,110,573 B2
Sulfide reactive vacuum distillation, absorption, stripping, and extraction for metal and alloy production
Antoine Allanore, Brentwood, NH (US); and Caspar R. Stinn, Medford, MA (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US)
Filed by Massachusetts Institute of Technology (MIT), Cambridge, MA (US)
Filed on Oct. 27, 2023, as Appl. No. 18/384,722.
Application 18/384,722 is a continuation of application No. PCT/US2022/035296, filed on Jun. 28, 2022.
Claims priority of provisional application 63/216,832, filed on Jun. 30, 2021.
Prior Publication US 2024/0052456 A1, Feb. 15, 2024
Int. Cl. C22B 5/04 (2006.01)
CPC C22B 5/04 (2013.01) 19 Claims
OG exemplary drawing
 
1. A method comprising:
dissolving at least a portion of a sulfide of a first metal in a solvent comprising molten aluminum;
aluminothermically reducing at least a portion of the sulfide through reactive vacuum distillation to form gaseous aluminum sulfide distillate and elemental first metal that remains in the molten aluminum; and
reacting the aluminum sulfide distillate with at least one material in the molten aluminum.