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1. WO2022010975 - PROCESS FOR RECYCLING COBALT & NICKEL FROM LITHIUM-ION BATTERIES

Publication Number WO/2022/010975
Publication Date 13.01.2022
International Application No. PCT/US2021/040624
International Filing Date 07.07.2021
IPC
C22B 23/00 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
23Obtaining nickel or cobalt
C22B 3/12 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
3Extraction of metal compounds from ores or concentrates by wet processes
04by leaching
12in inorganic alkaline solutions
C22B 3/26 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
3Extraction of metal compounds from ores or concentrates by wet processes
20Treatment or purification of solutions, e.g. obtained by leaching
26by liquid-liquid extraction using organic compounds
C22B 47/00 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
47Obtaining manganese
C22B 7/00 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
7Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
B09B 3/00 2022.1
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste into something useful or harmless
Applicants
  • AMERICAN HYPERFORM, INC. [US]/[US]
  • SMITH, William Novis [US]/[US]
  • SWOFFER, Scott [US]/[US]
Inventors
  • SMITH, William Novis
  • SWOFFER, Scott
Agents
  • BLANCHARD, Jonathan
Priority Data
17/218,86331.03.2021US
63/049,35608.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR RECYCLING COBALT & NICKEL FROM LITHIUM-ION BATTERIES
(FR) PROCÉDÉ DE RECYCLAGE DU COBALT ET DU NICKEL À PARTIR DE BATTERIES AU LITHIUM-ION
Abstract
(EN) A process for recovering a nickel cobalt manganese hydroxide from recycled lithium-ion battery (LIB) material, such as black mass, black powder, filter cake, or the like. The recycled LIB material is mixed with water and either sulfuric acid or hydrochloric acid at a pH less than 2. Cobalt, nickel, and manganese oxides from the recycled lithium-ion battery material dissolve into the acidic water with the reductive assistance of gaseous sulfur dioxide. Anode carbon is filtered from the acidic water, leaving the dissolved cobalt, nickel, and manganese oxides in a filtrate. The filtrate is mixed with aqueous sodium hydroxide at a pH greater than 8. Nickel cobalt manganese hydroxide precipitates from the filtrate. The nickel cobalt manganese hydroxide is filtered from the filtrate and dried.
(FR) L'invention concerne un procédé de récupération d'un hydroxyde de nickel-cobalt-manganèse à partir d'un matériau de batterie au lithium-ion (LIB) recyclé, tel qu'une masse noire, une poudre noire, un gâteau de filtration ou similaire. Le matériau LIB recyclé est mélangé avec de l'eau et soit de l'acide sulfurique, soit de l'acide chlorhydrique à un pH inférieur à 2. Les oxydes de cobalt, de nickel et de manganèse du matériau de batterie au lithium-ion recyclé se dissolvent dans l'eau acide au moyen de l'aide réductrice du dioxyde de soufre gazeux. Le carbone d'anode est filtré de l'eau acide, laissant les oxydes de cobalt, de nickel et de manganèse dissous dans un filtrat. Le filtrat est mélangé avec de l'hydroxyde de sodium aqueux à un pH supérieur à 8. L'hydroxyde de nickel-cobalt-manganèse précipite dans le filtrat. L'hydroxyde de nickel-cobalt-manganèse est filtré du filtrat et séché.
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