公开(公告)号：US20250034676A1

公开(公告)日：2025-01-30

申请号：US18717133

申请日：2022-12-06

Applicant: BASF SE

Inventor： Vincent Smith ,  Till Gerlach ,  Bernard Muller ,  Wolfgang Rohde ,  Nils-Olof Joachim Born ,  Kerstin Schierle-Arndt ,  Mark Jablonka ,  Alex Syrma

IPC: C22B7/00 ,  C22B1/02 ,  C22B3/00 ,  C22B47/00 ,  H01M10/54

Abstract: Disclosed herein are methods for leaching a material comprising one or more metals in a zero oxidation state and one or more chosen from metal oxides, metal hydroxides, and combinations thereof, wherein the method comprises contacting the material with an oxidizing acidic aqueous solution having a pH less than 6, and subsequently reducing the one or more chosen from metal oxides, metal hydroxides, and combinations thereof with a reducing agent. Also disclosed are methods comprising leaching a material to obtain an aqueous solution comprising metal ions, and separating the metal ions to obtain at least one essentially pure metal ion solution and/or at least one essentially pure solid metal ion salt. Further disclosed are methods comprising mechanically comminuting a material to obtain a black mass, and leaching the black mass.