Chemical dismantling of permanent magnet material and battery material

US11764416B2 · kind B2 · utility

Assignee

• IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. · US

Inventors

• Viktor Balema · Ames, US
• Ihor Hlova · Ames, US
• Oleksandr Dolotko · Karlsruhe, DE
• Vitalij K. Pecharsky · Ames, US

Key dates

• Filing date: Jul 23, 2020
• Grant date: Sep 19, 2023
• Expiry date: Jun 28, 2041

Classification

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

Abstract

Certain method embodiments are described and useful for recycling permanent magnet materials (e.g. permanent magnet alloys) and battery materials (e.g. battery electrode materials) to extract critical and/or valuable elements including REEs, Co and Ni. Method embodiments involve reacting such material with at least one of an ammonium salt and an iron (III) salt to achieve at least one of a liquid phase chemical reaction and a mechanochemical reaction.