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1. WO2020137997 - VALUABLE METAL RECOVERY METHOD

Publication Number WO/2020/137997
Publication Date 02.07.2020
International Application No. PCT/JP2019/050411
International Filing Date 23.12.2019
IPC
C22B 23/00 2006.01
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
B09B 3/00 2006.01
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
C22B 3/26 2006.01
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 7/00 2006.01
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
H01M 10/54 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
54Reclaiming serviceable parts of waste accumulators
CPC
B09B 3/00
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste ; or contaminated solids; into something useful or harmless
C22B 23/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
23Obtaining nickel or cobalt
C22B 7/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
7Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; ; Methods of a general interest or applied to the winning of more than two metals
H01M 10/54
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
54Reclaiming serviceable parts of waste accumulators
Y02P 10/20
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
10Technologies related to metal processing
20Recycling
Y02W 30/84
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
30Technologies for solid waste management
50Reuse, recycling or recovery technologies
84Recycling of batteries or fuel cells
Applicants
  • JX金属株式会社 JX NIPPON MINING & METALS CORPORATION [JP]/[JP]
Inventors
  • 岡島 伸明 OKAJIMA,Nobuaki
  • 田尻 和徳 TAJIRI,Kazunori
  • 樫村 弘道 KASHIMURA,Hiromichi
Agents
  • アクシス国際特許業務法人 AXIS PATENT INTERNATIONAL
Priority Data
2018-24625727.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) VALUABLE METAL RECOVERY METHOD
(FR) PROCÉDÉ DE RÉCUPÉRATION DE MÉTAL DE VALEUR
(JA) 有価金属の回収方法
Abstract
(EN)
Provided is a method for recovering at least cobalt from among the valuable metals cobalt and nickel from an acid solution containing cobalt ions, nickel ions and impurities, obtained by subjecting waste containing positive electrode material of lithium-ion rechargeable batteries to a wet process. The method comprises a first extraction step for recovering Co reverse-extracted when extracting cobalt ions by solvent extraction from the acid solution; and a second extraction step for recovering cobalt, in which cobalt ions are reverse extracted and extracted by solvent extraction from the post-reverse extraction liquid obtained in the first extraction step for cobalt recovery. The first extraction step for recovering Co has a solvent extraction process in which cobalt ions in the acid solution are extracted in a solvent; a scrubbing process in which the solvent used to extract the cobalt ions is scrubbed; and a reverse extraction process in which cobalt ions in the solvent after scrubbing are reverse extracted into solution.
(FR)
L'invention concerne un procédé de récupération de cobalt au moins parmi les métaux de valeur cobalt et nickel, à partir d'une solution acide contenant des ions cobalt, des ions nickel et des impuretés, obtenue par soumission de déchets contenant un matériau d'électrode positive de batteries rechargeables lithium-ion à un procédé humide. Le procédé comprend une première étape d'extraction pour récupérer du cobalt obtenu par extraction inverse lors de l'extraction d'ions cobalt par extraction par solvant à partir de la solution acide; et une seconde étape d'extraction pour récupérer le cobalt, des ions cobalt étant obtenus par extraction inverse et extraits par extraction par solvant à partir du liquide post-extraction inverse obtenu dans la première étape d'extraction pour la récupération de cobalt. La première étape d'extraction pour la récupération de cobalt comprend un processus d'extraction de solvant dans lequel des ions cobalt contenus dans la solution acide sont extraits dans un solvant; un procédé de lavage dans lequel le solvant utilisé pour extraire les ions cobalt est lavé; et un processus d'extraction inverse dans lequel des ions cobalt contenus dans le solvant après lavage sont extraits en solution.
(JA)
リチウムイオン二次電池の正極材を含む廃棄物に対して湿式処理を施して得られ、コバルトイオン、ニッケルイオン及び不純物を含有する酸性溶液から、有価金属であるコバルト及びニッケルのうちの少なくともコバルトを回収する方法であって、前記酸性溶液から、溶媒抽出によりコバルトイオンを抽出するとともに逆抽出するCo回収用の第一抽出工程と、Co回収用の第一抽出工程で得られる逆抽出後液から、溶媒抽出によりコバルトイオンを抽出するとともに逆抽出するCo回収用の第二抽出工程とを含み、前記Co回収用の第一抽出工程が、前記酸性溶液中のコバルトイオンを溶媒に抽出する溶媒抽出過程、コバルトイオンを抽出した前記溶媒をスクラビングするスクラビング過程、および、スクラビング後の前記溶媒中のコバルトイオンを溶液に逆抽出する逆抽出過程を有する。
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