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1. WO2022003694 - RECOVERY OF RARE EARTH METALS FROM FERROMAGNETIC ALLOYS

Publication Number WO/2022/003694
Publication Date 06.01.2022
International Application No. PCT/IL2021/050811
International Filing Date 01.07.2021
IPC
C22B 1/00 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
1Preliminary treatment of ores or scrap
C22B 3/44 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
44by chemical processes
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
C22B 59/00 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
59Obtaining rare earth metals
CPC
C22B 1/005
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
1Preliminary treatment of ores or scrap
005Preliminary treatment of scrap
C22B 3/44
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
20Treatment or purification of solutions, e.g. obtained by leaching
44by chemical processes
C22B 59/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
59Obtaining rare earth metals
C22B 7/008
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
006Wet processes
008by an alkaline or ammoniacal leaching
Applicants
  • YEDA RESEARCH AND DEVELOPMENT CO. LTD. [IL]/[IL]
Inventors
  • LUBOMIRSKY, Igor
  • KAPLAN, Valery
Agents
  • COHEN, Mark, S.
  • COHEN, Mark S.
Priority Data
63/046,72701.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) RECOVERY OF RARE EARTH METALS FROM FERROMAGNETIC ALLOYS
(FR) RÉCUPÉRATION DE MÉTAUX DES TERRES RARES À PARTIR D'ALLIAGES FERROMAGNÉTIQUES
Abstract
(EN) This invention is directed to methods for recovery of at least one rare earth metal from ferromagnetic alloy, including a chlorination of the rare earth metal following by separation of the chlorinated product.
(FR) La présente invention concerne des procédés de récupération d'au moins un métal des terres rares à partir d'un alliage ferromagnétique, comprenant une chloration du métal des terres rares suivie d'une séparation du produit chloré.
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