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1. WO1991012867 - SEPARATION OF RARE EARTH ELEMENTS WITH HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY

Publication Number WO/1991/012867
Publication Date 05.09.1991
International Application No. PCT/US1991/001158
International Filing Date 28.02.1991
Chapter 2 Demand Filed 28.02.1991
IPC
B01D 15/08 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
15Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
08Selective adsorption, e.g. chromatography
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
G01N 30/42 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
02Column chromatography
26Conditioning of the fluid carrier; Flow patterns
38Flow patterns
42using counter-current
CPC
B01D 15/1807
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
15Separating processes involving the treatment of liquids with solid sorbents
08Selective adsorption, e.g. chromatography
10characterised by constructional or operational features
18relating to flow patterns
1807using counter-currents, e.g. fluidised beds
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
G01N 30/42
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography ; or field flow fractionation;
02Column chromatography
26Conditioning of the fluid carrier; Flow patterns
38Flow patterns
42using counter-current
Applicants
  • THE UNITED STATES OF AMERICA, represented by THE SECRETARY, U.S. DEPARTMENT OF COMMERCE [US]/[US]
Inventors
  • KITAZUME, Eiichi
  • ITO, Yoichiro
Agents
  • HOLMAN, John, Clarke
Priority Data
485,31728.02.1990US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SEPARATION OF RARE EARTH ELEMENTS WITH HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY
(FR) SEPARATION DE METAUX DES TERRES RARES PAR CHROMATOGRAPHIE A CONTRE-COURANT ULTRA-RAPIDE
Abstract
(EN) A method of separating rare earth elements and compounds from mixtures containing the same which comprises separating the rare earth elements and compounds by means of rotational high speed countercurrent chromatography.
(FR) Selon un procédé de séparation de métaux des terres rares et de leurs composés contenus dans des mélanges, on sépare les métaux des terres rares et leurs composés par chromatographie à contre-courant rotatif ultra-rapide.
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