The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2024
Filed:
Apr. 01, 2019
Basf SE, Ludwigshafen am Rhein, DE;
Wolfgang Rohde, Ludwigshafen am Rhein, DE;
Torben Adermann, Ludwigshafen am Rhein, DE;
Thomas Michael Ryll, Ludwigshafen am Rhein, DE;
Kerstin Schierle-Arndt, Ludwigshafen am Rhein, DE;
Fabian Seeler, Ludwigshafen am Rhein, DE;
Sabine Weiguny, Ludwigshafen am Rhein, DE;
Michael Zeilinger, Ludwigshafen am Rhein, DE;
BASF SE, Ludwigshafen Am Rhein, DE;
Abstract
Process for the recovery of transition metal from spent lithium ion batteries containing nickel, wherein said process comprises the steps of (a) heating a lithium containing transition metal oxide material to a temperature in the range of from 400 to 1200° C., (b) treating said heat-treated material with water, (c) treating the solid residue from step (b) with an acid selected from sulfuric acid, hydrochloric acid, nitric acid, methanesulfonic acid, oxalic acid and citric acid, (d) adjusting the pH value to 2.5 to 8, (e) removing compounds of Al, Cu, Fe, Zn or combinations of at least two of the foregoing from the solution or slurry obtained in step (d).