公开(公告)号：US20240347801A1

公开(公告)日：2024-10-17

申请号：US18579698

申请日：2022-07-22

Applicant: BASF SE

Inventor： Wolfgang Rohde ,  Dieter G Von Deak ,  Birgit Gerke

IPC: H01M10/54 ,  C22B3/22 ,  C22B7/00 ,  C22B26/12 ,  C25B1/26

CPC classification number: H01M10/54 ,  C22B3/22 ,  C22B7/005 ,  C22B7/006 ,  C22B26/12 ,  C25B1/26

Abstract: Disclosed herein are processes for removing lithium from a battery material comprising contacting the battery material with an aqueous medium comprising calcium hypochlorite salts to form a mixture, and separating in the mixture solids from liquids to obtain an aqueous solution comprising lithium ions. Also disclosed are processes for recycling lithium ion battery materials.

公开(公告)号：US12134803B2

公开(公告)日：2024-11-05

申请号：US17250339

申请日：2019-07-09

Applicant: BASF SE

Inventor： Wolfgang Rohde ,  Torben Adermann ,  Kerstin Schierle-Arndt ,  Birgit Gerke

IPC: H01M10/54 ,  C22B1/00 ,  C22B3/00 ,  C22B7/00 ,  C22B26/12

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 200 to 900° C. in the presence of H2, (b) treatment of the product obtained in step (a) with an aqueous medium, (c) solid-solid separation for the removal of Ni from the solid residue of step (b), (d) recovery of Li as hydroxide or salt from the solution obtained in step (b), (e) extraction of Ni and, if applicable, Co from the solid Ni-concentrate obtained in step (c).

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.