	US 12,412,942 B2
	Battery recycling by reduction and carbonylation
Wolfgang Rohde, Ludwigshafen (DE); Torben Adermann, Ludwigshafen (DE); Kerstin Schierle-Arndt, Ludwigshafen (DE); Nuria Huguet Subiela, Ludwigshafen (DE); Andreas Kempter, Ludwigshafen (DE); and Birgit Gerke, Ludwigshafen (DE)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 17/906,750
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Mar. 23, 2021, PCT No. PCT/EP2021/057442 § 371(c)(1), (2) Date Sep. 20, 2022, PCT Pub. No. WO2021/191211, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 20164834 (EP), filed on Mar. 23, 2020.
Prior Publication US 2023/0155202 A1, May 18, 2023
Int. Cl. C22B 23/06 (2006.01); C22B 1/00 (2006.01); C22B 5/12 (2006.01); C22B 23/02 (2006.01); H01M 10/54 (2006.01)

CPC H01M 10/54 (2013.01) [C22B 1/005 (2013.01); C22B 5/12 (2013.01); C22B 23/021 (2013.01); C22B 23/065 (2013.01)]

15 Claims

1. A process for recovering transition metals from a battery material comprising:

(0.1) providing the battery material, wherein the battery material comprises oxidic nickel compounds, oxidic cobalt compounds, or combinations thereof,

(1.1) heating the battery material above 350° C. to yield a reduced material comprising nickel in elemental form, cobalt in elemental form, or combinations thereof,

(2.1) carbonylating the reduced material with carbon monoxide, optionally in the presence of a reactive gas, to yield a solid carbonylation residue and a volatile carbonyl, wherein the volatile carbonyl comprises nickel carbonyl containing compounds, cobalt carbonyl containing compounds, or combinations thereof, and

(3.1) separating the volatile carbonyl from the solid carbonylation residue by evaporation.