FR2623792B1 - Procede de separation du thorium et des terres rares d'un concentre de fluorures de ces elements - Google Patents

Procede de separation du thorium et des terres rares d'un concentre de fluorures de ces elements

Info

Publication number
FR2623792B1
FR2623792B1 FR8716452A FR8716452A FR2623792B1 FR 2623792 B1 FR2623792 B1 FR 2623792B1 FR 8716452 A FR8716452 A FR 8716452A FR 8716452 A FR8716452 A FR 8716452A FR 2623792 B1 FR2623792 B1 FR 2623792B1
Authority
FR
France
Prior art keywords
rare earths
separating thorium
fluoride concentrate
fluoride
concentrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
FR8716452A
Other languages
English (en)
Other versions
FR2623792A1 (fr
Inventor
Francinet Cailly
Frederic Fabre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhodia Chimie SAS
Original Assignee
Rhone Poulenc Chimie SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhone Poulenc Chimie SA filed Critical Rhone Poulenc Chimie SA
Priority to FR8716452A priority Critical patent/FR2623792B1/fr
Priority to JP63296400A priority patent/JPH0665608B2/ja
Priority to BR888806226A priority patent/BR8806226A/pt
Priority to AU25937/88A priority patent/AU2593788A/en
Priority to US07/276,665 priority patent/US4954293A/en
Publication of FR2623792A1 publication Critical patent/FR2623792A1/fr
Application granted granted Critical
Publication of FR2623792B1 publication Critical patent/FR2623792B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B59/00—Obtaining rare earth metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F15/00—Compounds of thorium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
    • C01F17/224—Oxides or hydroxides of lanthanides
    • C01F17/235—Cerium oxides or hydroxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR8716452A 1987-11-27 1987-11-27 Procede de separation du thorium et des terres rares d'un concentre de fluorures de ces elements Expired - Lifetime FR2623792B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8716452A FR2623792B1 (fr) 1987-11-27 1987-11-27 Procede de separation du thorium et des terres rares d'un concentre de fluorures de ces elements
JP63296400A JPH0665608B2 (ja) 1987-11-27 1988-11-25 トリウム及び希土類元素のふっ化物の濃縮物からこれらの元素を分離する方法
BR888806226A BR8806226A (pt) 1987-11-27 1988-11-25 Processo de separacao de torio e de terras raras de um concentrado de fluoretos de pelo menos um destes elementos
AU25937/88A AU2593788A (en) 1987-11-27 1988-11-25 Separating thorium and rare earths from fluoride extracts
US07/276,665 US4954293A (en) 1987-11-27 1988-11-28 Separation of thorium and rare earth values from fluoride concentrates thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8716452A FR2623792B1 (fr) 1987-11-27 1987-11-27 Procede de separation du thorium et des terres rares d'un concentre de fluorures de ces elements

Publications (2)

Publication Number Publication Date
FR2623792A1 FR2623792A1 (fr) 1989-06-02
FR2623792B1 true FR2623792B1 (fr) 1991-02-15

Family

ID=9357233

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8716452A Expired - Lifetime FR2623792B1 (fr) 1987-11-27 1987-11-27 Procede de separation du thorium et des terres rares d'un concentre de fluorures de ces elements

Country Status (5)

Country Link
US (1) US4954293A (fr)
JP (1) JPH0665608B2 (fr)
AU (1) AU2593788A (fr)
BR (1) BR8806226A (fr)
FR (1) FR2623792B1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697010B1 (fr) * 1992-10-19 1995-02-24 Rhone Poulenc Chimie Procédé de traitement des composés solubles du thorium et nouveau phosphate de thorium ainsi obtenu.
US5405590A (en) * 1993-02-05 1995-04-11 Pedro Buarque de Macedo Off-gas scrubber system
KR950013314B1 (ko) * 1993-05-07 1995-11-02 주식회사엘지금속 폐수중 불소처리 잔사의 재처리방법
US6471922B1 (en) * 1999-03-01 2002-10-29 The Regents Of The University Of California Actinide removal from spent salts
CA2710432C (fr) 2007-12-26 2016-04-26 Thorium Power, Inc. Reacteur nucleaire, dispositif combustible compose de modules de production pilote pour un reacteur nucleaire et une pile a combustible pour un dispositif combustible
US8116423B2 (en) 2007-12-26 2012-02-14 Thorium Power, Inc. Nuclear reactor (alternatives), fuel assembly of seed-blanket subassemblies for nuclear reactor (alternatives), and fuel element for fuel assembly
AU2008365658B2 (en) 2008-12-25 2015-05-21 Thorium Power Inc. Fuel assembly for a light-water nuclear reactor (embodiments), light-water nuclear reactor and fuel element of the fuel assembly
WO2011143172A1 (fr) 2010-05-11 2011-11-17 Thorium Power, Inc. Assemblage de combustible à noyau d'alliage de combustibles métalliques et son procédé de fabrication
US10170207B2 (en) 2013-05-10 2019-01-01 Thorium Power, Inc. Fuel assembly
US10192644B2 (en) 2010-05-11 2019-01-29 Lightbridge Corporation Fuel assembly
JP6172100B2 (ja) * 2014-09-25 2017-08-02 住友金属鉱山株式会社 スカンジウムの回収方法
EP3875618A1 (fr) * 2020-03-06 2021-09-08 Yara International ASA Procédé de séparation sélective de thorium et de cérium à partir d'un concentré solide le comprenant et un ou plusieurs métaux de terres rares et sa solution d'acide de terres rares

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1307153A (en) * 1919-06-17 Lonnie w
US1335157A (en) * 1915-04-15 1920-03-30 Chemical Foundation Inc Process of separating thorium from the other metals of the rare earths
FR845666A (fr) * 1937-11-24 1939-08-30 Seri Holding Procédé d'extraction de bases d'éléments rares contenues dans des minerais ou des roches
US2995419A (en) * 1950-07-18 1961-08-08 Jr Daniel E Koshland Method for dissolving lanthanum fluoride carrier for plutonium
US2915363A (en) * 1956-06-21 1959-12-01 Int Minerals & Chem Corp Method of recovering thoria
US3146063A (en) * 1961-01-03 1964-08-25 Vitro Corp Of America Process for separating scandium from mixtures containing scandium and thorium values
US3619128A (en) * 1968-12-05 1971-11-09 Stauffer Chemical Co Method for processing rare earth fluorocarbonate ores
JPS586947A (ja) * 1981-07-03 1983-01-14 Inoue Japax Res Inc 希土類精鉱の処理方法
FR2515630B1 (fr) * 1981-10-30 1985-10-04 Rhone Poulenc Spec Chim Procede d'extraction et de separation de l'uranium, du thorium et des terres rares par traitement de solutions aqueuses de chlorures de ces elements
FR2583735B1 (fr) * 1985-06-20 1990-11-23 Rhone Poulenc Spec Chim Nouvelles dispersions colloidales d'un compose de cerium iv en milieu aqueux et leur procede d'obtention.
FR2584092B1 (fr) * 1985-06-27 1987-10-23 Pechiney Uranium Procede de separation des terres rares et de l'uranium d'un concentre d'uf4 et de leur valorisation
FR2584700B1 (fr) * 1985-07-11 1990-05-11 Rhone Poulenc Spec Chim Procede de preparation de precurseurs d'oxydes de terres rares et produits obtenus
FR2587037A1 (fr) * 1985-09-10 1987-03-13 Rhone Poulenc Spec Chim Procede de traitement de minerais de terres rares
FR2587036A1 (fr) * 1985-09-10 1987-03-13 Rhone Poulenc Spec Chim Procede de traitement de minerais de terres rares

Also Published As

Publication number Publication date
FR2623792A1 (fr) 1989-06-02
BR8806226A (pt) 1989-08-15
US4954293A (en) 1990-09-04
AU2593788A (en) 1989-06-01
JPH01230426A (ja) 1989-09-13
JPH0665608B2 (ja) 1994-08-24

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Legal Events

Date Code Title Description
ST Notification of lapse