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.

公开(公告)号：US20240360001A1

公开(公告)日：2024-10-31

申请号：US18291277

申请日：2022-07-28

Applicant: BASF SE

Inventor： Stefan Pichlmair ,  Ralf Boehling ,  Sabine Frischhut ,  Vincent Smith

IPC: C01G53/10

CPC classification number: C01G53/10

Abstract: The present disclosure is directed to processes and systems for dissolving elemental nickel in sulfuric acid solutions to produce nickel sulfate products, and for example. nickel sulfate products suitable for battery materials production.

公开(公告)号：US20250003099A1

公开(公告)日：2025-01-02

申请号：US18576396

申请日：2022-07-07

Applicant: BASF SE

Inventor： Nils-Olof Joachim Born ,  Arnd Garsuch ,  Kerstin Schierle-Arndt ,  Wolfram Wilk ,  Sigmar Braeuninger ,  Regina Vogelsang ,  Bastian Opitz ,  Daniel Malko ,  Vincent Smith

IPC: C25C1/02 ,  C22B26/12 ,  H01M10/54

Abstract: Disclosed herein are processes comprising electrolyzing an aqueous solution comprising lithium, wherein the aqueous solution has a pH less than 0.5. Also disclosed are processes comprising electrolyzing a first aqueous solution comprising lithium to obtain a second aqueous solution comprising lithium, and an acidic aqueous solution having a pH less than 0.5, adjusting the pH of the second aqueous solution with the acidic aqueous solution to obtain a third aqueous solution comprising lithium having a pH less than 0.5, and electrolyzing the third aqueous solution comprising lithium. Additionally disclosed are, processes comprising stripping a liquid medium comprising lithium with an acidic aqueous solution to obtain an aqueous solution comprising lithium, and electrolyzing the aqueous solution comprising lithium. Further disclosed are processes for preparing a liquid medium comprising lithium.