SG50363A1 - Process for the manufacture of ammonium rare-earth double oxalates and their uses for the manufacture of rare-earth oxides and rare-earth oxides obtained - Google Patents

Process for the manufacture of ammonium rare-earth double oxalates and their uses for the manufacture of rare-earth oxides and rare-earth oxides obtained

Info

Publication number
SG50363A1
SG50363A1 SG1995001760A SG1995001760A SG50363A1 SG 50363 A1 SG50363 A1 SG 50363A1 SG 1995001760 A SG1995001760 A SG 1995001760A SG 1995001760 A SG1995001760 A SG 1995001760A SG 50363 A1 SG50363 A1 SG 50363A1
Authority
SG
Singapore
Prior art keywords
rare
manufacture
earth
earth oxides
ammonium
Prior art date
Application number
SG1995001760A
Other languages
English (en)
Inventor
Claire David
Original Assignee
Rhone Poulenc Chimie
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 filed Critical Rhone Poulenc Chimie
Publication of SG50363A1 publication Critical patent/SG50363A1/en

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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/41—Preparation of salts of carboxylic acids
    • C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/28—Methods of preparing ammonium salts in general
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/41—Preparation of salts of carboxylic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Television Signal Processing For Recording (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Peptides Or Proteins (AREA)
SG1995001760A 1990-11-13 1991-10-28 Process for the manufacture of ammonium rare-earth double oxalates and their uses for the manufacture of rare-earth oxides and rare-earth oxides obtained SG50363A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9014030A FR2669027B1 (fr) 1990-11-13 1990-11-13 Procede de fabrication d'oxalates doubles de terres rares et d'ammonium et leurs utilisations pour la fabrication d'oxydes de terres rares et oxydes de terres rares obtenus.

Publications (1)

Publication Number Publication Date
SG50363A1 true SG50363A1 (en) 1998-07-20

Family

ID=9402097

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1995001760A SG50363A1 (en) 1990-11-13 1991-10-28 Process for the manufacture of ammonium rare-earth double oxalates and their uses for the manufacture of rare-earth oxides and rare-earth oxides obtained

Country Status (16)

Country Link
US (1) US5665323A (no)
EP (1) EP0486350B1 (no)
JP (1) JPH0714814B2 (no)
KR (1) KR950004771B1 (no)
CN (2) CN1040745C (no)
AT (1) ATE164373T1 (no)
BR (1) BR9104904A (no)
CA (1) CA2055282C (no)
DE (1) DE69129143T2 (no)
FI (1) FI915338A (no)
FR (1) FR2669027B1 (no)
IE (1) IE913934A1 (no)
NO (1) NO914399L (no)
SG (1) SG50363A1 (no)
TW (1) TW219922B (no)
ZA (1) ZA918372B (no)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04238813A (ja) * 1990-12-28 1992-08-26 Shin Etsu Chem Co Ltd 希土類元素蓚酸アンモニウム複塩の製造方法および希土類元素酸化物の製造方法
AUPM402094A0 (en) * 1994-02-18 1994-03-17 University Of Sydney, The Chemical compounds
US20050019241A1 (en) * 2003-07-23 2005-01-27 Lyons Robert Joseph Preparation of rare earth ceramic garnet
CN1318304C (zh) * 2003-12-15 2007-05-30 内蒙古科技大学 制备大颗粒氧化铈的方法
CN102304628A (zh) * 2011-07-29 2012-01-04 江西理工大学 一种利用液膜从磷矿中提取稀土的方法
CN104691127A (zh) * 2015-02-10 2015-06-10 首都师范大学 一种实现商品终身防伪的方法
CN108408757B (zh) * 2018-03-15 2020-06-23 益阳鸿源稀土有限责任公司 一种高纯超细氧化钪粉末的制备方法
CN108752190A (zh) * 2018-06-27 2018-11-06 湖南稀土金属材料研究院 稀土铵双草酸盐的制备方法及稀土氧化物的制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562175A (en) * 1968-09-11 1971-02-09 Gen Electric Gadolinium oxide particle growth in lithium oxide flux
US3635658A (en) * 1969-04-02 1972-01-18 Sylvania Electric Prod Rare earth oxide process
JPS5395911A (en) * 1977-02-01 1978-08-22 Mitsubishi Chem Ind Ltd Preparation of fine rare earth oxalate powder
JPS6059222B2 (ja) * 1977-02-08 1985-12-24 三菱化学株式会社 希土「しゅう」酸塩微粉体の製造法
NO140925C (no) * 1978-04-14 1979-12-12 Sjeldne Jordarter Forskning Fremgangsmaate til fremstilling av yttriumoksyd med saerlig store partikler
JPS5528905A (en) * 1978-08-18 1980-02-29 Mitsubishi Chem Ind Ltd Preparation of fine powder of ammonium yttrium oxalate
JPS61532A (ja) * 1984-06-13 1986-01-06 Nippon Pureeteingu Kk サマリウムの回収方法
JPS6183143A (ja) * 1984-09-28 1986-04-26 Denki Kagaku Kogyo Kk 溶液の調整法
JPH0627004B2 (ja) * 1987-05-26 1994-04-13 三菱マテリアル株式会社 １２面体の結晶形を有する酸化スカンジウムの製造方法
DK168701B1 (da) * 1988-06-09 1994-05-24 Topsoe Haldor As Fremgangsmåde til ved fremstilling af svovlsyre at udkondensere svovlsyredampe

Also Published As

Publication number Publication date
KR920009702A (ko) 1992-06-25
ZA918372B (en) 1992-09-30
US5665323A (en) 1997-09-09
DE69129143T2 (de) 1998-10-15
FR2669027B1 (fr) 1992-12-31
BR9104904A (pt) 1992-06-23
NO914399L (no) 1992-05-14
ATE164373T1 (de) 1998-04-15
CN1061403A (zh) 1992-05-27
JPH0714814B2 (ja) 1995-02-22
FR2669027A1 (fr) 1992-05-15
DE69129143D1 (de) 1998-04-30
CN1147501A (zh) 1997-04-16
FI915338A (fi) 1992-05-14
CN1096420C (zh) 2002-12-18
JPH05262518A (ja) 1993-10-12
CA2055282C (fr) 2000-01-11
IE913934A1 (en) 1992-05-20
CA2055282A1 (fr) 1992-05-14
CN1040745C (zh) 1998-11-18
NO914399D0 (no) 1991-11-11
EP0486350A1 (fr) 1992-05-20
EP0486350B1 (fr) 1998-03-25
TW219922B (no) 1994-02-01
KR950004771B1 (ko) 1995-05-10
FI915338A0 (fi) 1991-11-12

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