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：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.

公开(公告)号：US20230406717A1

公开(公告)日：2023-12-21

申请号：US18037673

申请日：2021-11-19

Applicant: BASF SE

Inventor： Nils-Olof Joachim Born ,  Mattia Giacomini ,  Birgit Gerke ,  Fabian Seeler ,  Wolfgang Rohde ,  Kerstin Schierle-Arndt ,  Regina Vogelsang

IPC: C01D15/02 ,  B01J20/04 ,  B01J20/28 ,  C02F1/28 ,  C22B7/00 ,  C22B3/06 ,  C22B3/26 ,  H01M10/54

CPC classification number: C01D15/02 ,  B01J20/043 ,  B01J20/041 ,  B01J20/045 ,  B01J20/048 ,  B01J20/2803 ,  B01J20/28016 ,  B01J20/28004 ,  C02F1/288 ,  C22B7/007 ,  C22B3/06 ,  C22B3/26 ,  H01M10/54 ,  C01P2006/80 ,  C02F1/281 ,  C02F2101/14

Abstract: A process for extracting fluoride from a solution of high pH comprising more than 0.1 mol of alkaline hydroxide and/or alcoholate per liter dissolved in a polar solvent is described. The polar solvent is chosen from water, lower alcohols, and mixtures thereof. The process is characterized in that the solution liquid is contacted with a solid phase adsorbent chosen from a) alkaline earth salts comprising carbonate anions, oxo anions, sulphate anions, or phosphate anions, and alkaline earth salts comprising a mixture of such anions or a mixture of such anions with hydroxyl anions, and b) cation binding resins loaded with one or more 3-valent cations, chosen from 3-valent cations of Al, Ga, In, Fe, Cr, Sc, Y, La and lanthanoides.