Battery recycling by reduction and carbonylation

US12412942B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Wolfgang Rohde · Speyer, DE
• Torben Adermann · Ludwigshafen, DE
• Kerstin Schierle-Arndt · Zwingenberg, DE
• Nuria Huguet Subiela · Ludwigshafen, DE
• Andreas Kempter · Neustadt, DE
• Birgit GERKE · Ludwigshafen, DE

Key dates

• Filing date: Mar 23, 2021
• Grant date: Sep 9, 2025
• Expiry date: Jul 2, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/84
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the recovery of transition metals from battery materials comprising (0.1) providing a battery material which comprises oxidic nickel and/or cobalt compounds, (1.1) heating the battery material above 350° C. to yield a reduced material which contains nickel and/or cobalt in elemental form, (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 which comprises nickel and/or cobalt carbonyl containing compounds, and (3.1) separating the volatile carbonyl from the solid carbonylation residue by evaporation.