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AU591687B2 - Rare-earth oxide precursors - Google Patents

Rare-earth oxide precursors

Info

Publication number
AU591687B2
AU591687B2 AU60076/86A AU6007686A AU591687B2 AU 591687 B2 AU591687 B2 AU 591687B2 AU 60076/86 A AU60076/86 A AU 60076/86A AU 6007686 A AU6007686 A AU 6007686A AU 591687 B2 AU591687 B2 AU 591687B2
Authority
AU
Australia
Prior art keywords
rare
rare earth
earth oxide
oxide precursors
concentration
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.)
Ceased
Application number
AU60076/86A
Other versions
AU6007686A (en
Inventor
Claire Gourlaouen
Bertrand Latourrette
Jean-Luc Le Loarer
Claude Magnier
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.)
Rhone Poulenc Specialites Chimiques
Original Assignee
Rhone Poulenc Specialites Chimiques
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 Specialites Chimiques filed Critical Rhone Poulenc Specialites Chimiques
Publication of AU6007686A publication Critical patent/AU6007686A/en
Application granted granted Critical
Publication of AU591687B2 publication Critical patent/AU591687B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C01F17/30—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6
    • 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
    • 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
    • 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
    • C01F17/253—Halides
    • C01F17/271—Chlorides
    • 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
    • C01F17/276—Nitrates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1. Process for obtaining precursors of oxygen-containing derivatives of rare earths, characterized in that it consists in : - simultaneously and continuously mixing an aqueous solution of at least one salt of a trivalent rare earth with a base under conditions such that the molar ratio of the concentration of OH**- ions of the base to the concentration of rare earth salt, expressed as rare earth cation, is constant and less than 5, - separating off the precipitate obtained - and, optionally, thermally treating the precipitate.
AU60076/86A 1985-07-11 1986-07-11 Rare-earth oxide precursors Ceased AU591687B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8510615 1985-07-11
FR8510615A FR2584700B1 (en) 1985-07-11 1985-07-11 PROCESS FOR THE PREPARATION OF PRECURSORS OF RARE EARTH OXIDES AND PRODUCTS OBTAINED

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU76784/87A Addition AU601998B2 (en) 1985-07-11 1987-08-11 Oxygenated rare earth derivatives

Publications (2)

Publication Number Publication Date
AU6007686A AU6007686A (en) 1987-02-19
AU591687B2 true AU591687B2 (en) 1989-12-14

Family

ID=9321190

Family Applications (1)

Application Number Title Priority Date Filing Date
AU60076/86A Ceased AU591687B2 (en) 1985-07-11 1986-07-11 Rare-earth oxide precursors

Country Status (7)

Country Link
EP (1) EP0209448B1 (en)
JP (1) JPH08696B2 (en)
AT (1) ATE49951T1 (en)
AU (1) AU591687B2 (en)
DE (1) DE3668609D1 (en)
FR (1) FR2584700B1 (en)
NO (1) NO862768L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616769B1 (en) * 1987-06-17 1990-11-30 Rhone Poulenc Chimie PROCESS FOR OBTAINING A RARE EARTH OXIDE AND PRODUCT OBTAINED
FR2617153B1 (en) * 1987-06-26 1991-04-05 Rhone Poulenc Chimie PROCESS FOR OBTAINING CERIC OXIDE AND CERIC OXIDE WITH NEW MORPHOLOGICAL CHARACTERISTICS
FR2623792B1 (en) * 1987-11-27 1991-02-15 Rhone Poulenc Chimie PROCESS FOR SEPARATING THORIUM AND RARE EARTHS FROM A FLUORIDE CONCENTRATE THEREOF
FR2640953B1 (en) * 1988-12-23 1991-02-08 Rhone Poulenc Chimie
FR2821836A1 (en) * 2001-03-08 2002-09-13 Rhodia Elect & Catalysis LARGE SPECIFIC PRASEODYME OXIDE AND METHODS OF PREPARATION
FR2884245B1 (en) * 2005-04-12 2007-07-27 Inst Nat Sciences Appliq CERIUM (III) HEXANUCLEAR COMPLEXES AND PROCESS FOR PRODUCING SUCH COMPLEXES.
JP5339330B2 (en) * 2008-02-06 2013-11-13 独立行政法人物質・材料研究機構 Method for producing layered rare earth hydroxide

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6008086A (en) * 1985-07-11 1987-01-15 Rhone-Poulenc Specialites Chimiques Neodymium hydroxynitrates and the method of manufacture
AU6243986A (en) * 1985-09-10 1987-03-12 Rhone-Poulenc Specialites Chimiques Treatment of rare earth ores
AU6243886A (en) * 1985-09-10 1987-03-12 Rhone-Poulenc Specialites Chimiques Treatment of rare earth ores

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3023247C2 (en) * 1980-06-21 1982-09-02 Du Pont de Nemours (Deutschland) GmbH, 4000 Düsseldorf Photosensitive recording material
DD215917A3 (en) * 1982-08-19 1984-11-21 Stickstoffwerk Piesteritz 4602 PROCESS FOR PRODUCING LANTHANKONE CENTERS
JPS59207839A (en) * 1983-05-09 1984-11-26 Asahi Chem Ind Co Ltd Microspherical rare earth metal oxide and its production
JPS59213620A (en) * 1983-05-18 1984-12-03 Asahi Chem Ind Co Ltd Preparation of fine powdery yttrium oxide

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6008086A (en) * 1985-07-11 1987-01-15 Rhone-Poulenc Specialites Chimiques Neodymium hydroxynitrates and the method of manufacture
AU6243986A (en) * 1985-09-10 1987-03-12 Rhone-Poulenc Specialites Chimiques Treatment of rare earth ores
AU6243886A (en) * 1985-09-10 1987-03-12 Rhone-Poulenc Specialites Chimiques Treatment of rare earth ores

Also Published As

Publication number Publication date
JPS6265928A (en) 1987-03-25
FR2584700B1 (en) 1990-05-11
FR2584700A1 (en) 1987-01-16
ATE49951T1 (en) 1990-02-15
EP0209448B1 (en) 1990-01-31
EP0209448A1 (en) 1987-01-21
DE3668609D1 (en) 1990-03-08
AU6007686A (en) 1987-02-19
NO862768D0 (en) 1986-07-09
JPH08696B2 (en) 1996-01-10
NO862768L (en) 1987-01-12

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