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FR2785895B1 - Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant d'augmenter la quantite d'hydrate d'alumine produit - Google Patents

Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant d'augmenter la quantite d'hydrate d'alumine produit

Info

Publication number
FR2785895B1
FR2785895B1 FR9814507A FR9814507A FR2785895B1 FR 2785895 B1 FR2785895 B1 FR 2785895B1 FR 9814507 A FR9814507 A FR 9814507A FR 9814507 A FR9814507 A FR 9814507A FR 2785895 B1 FR2785895 B1 FR 2785895B1
Authority
FR
France
Prior art keywords
increasing
aluminum hydrate
liquors containing
purifying
hydrate produced
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 - Fee Related
Application number
FR9814507A
Other languages
English (en)
Other versions
FR2785895A1 (fr
Inventor
Kadi Bassam El
Philippe Clerin
Jean Michel Lamerant
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney 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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Priority to FR9814507A priority Critical patent/FR2785895B1/fr
Priority to CA002350686A priority patent/CA2350686A1/fr
Priority to EP99972192A priority patent/EP1135332A1/fr
Priority to PCT/FR1999/002743 priority patent/WO2000029328A1/fr
Priority to BR9915405-6A priority patent/BR9915405A/pt
Priority to AU11648/00A priority patent/AU760072B2/en
Publication of FR2785895A1 publication Critical patent/FR2785895A1/fr
Application granted granted Critical
Publication of FR2785895B1 publication Critical patent/FR2785895B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/0606—Making-up the alkali hydroxide solution from recycled spent liquor
    • 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
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C01F7/473—Removal of organic compounds, e.g. sodium oxalate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR9814507A 1998-11-16 1998-11-16 Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant d'augmenter la quantite d'hydrate d'alumine produit Expired - Fee Related FR2785895B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR9814507A FR2785895B1 (fr) 1998-11-16 1998-11-16 Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant d'augmenter la quantite d'hydrate d'alumine produit
CA002350686A CA2350686A1 (fr) 1998-11-16 1999-11-09 Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium
EP99972192A EP1135332A1 (fr) 1998-11-16 1999-11-09 Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium
PCT/FR1999/002743 WO2000029328A1 (fr) 1998-11-16 1999-11-09 Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium
BR9915405-6A BR9915405A (pt) 1998-11-16 1999-11-09 Processo de purificação dos licores de aluminato de sódio que contêm oxalato de sódio
AU11648/00A AU760072B2 (en) 1998-11-16 1999-11-09 Method for purifying sodium aluminate liquors containing sodium oxalate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9814507A FR2785895B1 (fr) 1998-11-16 1998-11-16 Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant d'augmenter la quantite d'hydrate d'alumine produit

Publications (2)

Publication Number Publication Date
FR2785895A1 FR2785895A1 (fr) 2000-05-19
FR2785895B1 true FR2785895B1 (fr) 2001-01-19

Family

ID=9532886

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9814507A Expired - Fee Related FR2785895B1 (fr) 1998-11-16 1998-11-16 Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant d'augmenter la quantite d'hydrate d'alumine produit

Country Status (6)

Country Link
EP (1) EP1135332A1 (fr)
AU (1) AU760072B2 (fr)
BR (1) BR9915405A (fr)
CA (1) CA2350686A1 (fr)
FR (1) FR2785895B1 (fr)
WO (1) WO2000029328A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1730417A (zh) * 2005-07-18 2006-02-08 贵阳铝镁设计研究院 粗赤泥过滤洗涤新方法
WO2019161455A1 (fr) * 2018-02-23 2019-08-29 Rio Tinto Alcan International Limited Procédé bayer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4263261A (en) * 1978-12-21 1981-04-21 Sumitomo Aluminium Smelting Company, Limited Method for the removal of impurities from sodium aluminate solution
AU613758B2 (en) * 1988-06-03 1991-08-08 Vereinigte Aluminium-Werke Aktiengesellschaft Method for removing sodium oxalate from caustic aluminate liquors
FR2686872B1 (fr) * 1992-02-05 1994-06-03 Pechiney Aluminium Procede d'elimination de l'oxalate de sodium des solutions d'aluminate de sodium du cycle bayer.
FR2736908B1 (fr) * 1995-07-20 1997-08-29 Pechiney Aluminium Procede d'epuration des solutions d'aluminate de sodium contenant de l'oxalate de sodium

Also Published As

Publication number Publication date
WO2000029328A1 (fr) 2000-05-25
CA2350686A1 (fr) 2000-05-25
BR9915405A (pt) 2001-07-24
AU760072B2 (en) 2003-05-08
EP1135332A1 (fr) 2001-09-26
FR2785895A1 (fr) 2000-05-19
AU1164800A (en) 2000-06-05

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Legal Events

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Effective date: 20120731