DE69802904D1 - Verbessertes verfahren zur behandlung von aluminiummonohydratreichen bauxiten - Google Patents

Verbessertes verfahren zur behandlung von aluminiummonohydratreichen bauxiten

Info

Publication number
DE69802904D1
DE69802904D1 DE69802904T DE69802904T DE69802904D1 DE 69802904 D1 DE69802904 D1 DE 69802904D1 DE 69802904 T DE69802904 T DE 69802904T DE 69802904 T DE69802904 T DE 69802904T DE 69802904 D1 DE69802904 D1 DE 69802904D1
Authority
DE
Germany
Prior art keywords
bauxites
improved method
treating aluminum
aluminum monohydrate
monohydrate
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
DE69802904T
Other languages
English (en)
Other versions
DE69802904T2 (de
Inventor
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
Application granted granted Critical
Publication of DE69802904D1 publication Critical patent/DE69802904D1/de
Publication of DE69802904T2 publication Critical patent/DE69802904T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C01F7/062—Digestion

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Paper (AREA)
DE69802904T 1997-01-22 1998-01-21 Verbessertes verfahren zur behandlung von aluminiummonohydratreichen bauxiten Expired - Lifetime DE69802904T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9700850A FR2758544B1 (fr) 1997-01-22 1997-01-22 Procede ameliore de traitement de bauxites riches en monohydrate d'alumine
PCT/FR1998/000104 WO1998032696A1 (fr) 1997-01-22 1998-01-21 Procede ameliore de traitement de bauxites riches en monohydrate d'alumine_______________________________________________________________________________________________________________________________________________________________________________________

Publications (2)

Publication Number Publication Date
DE69802904D1 true DE69802904D1 (de) 2002-01-24
DE69802904T2 DE69802904T2 (de) 2002-08-29

Family

ID=9503010

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69802904T Expired - Lifetime DE69802904T2 (de) 1997-01-22 1998-01-21 Verbessertes verfahren zur behandlung von aluminiummonohydratreichen bauxiten

Country Status (10)

Country Link
US (1) US6296818B2 (de)
EP (1) EP0960069B1 (de)
CN (1) CN1098810C (de)
AU (1) AU736050B2 (de)
CA (1) CA2278658C (de)
DE (1) DE69802904T2 (de)
ES (1) ES2169904T3 (de)
FR (1) FR2758544B1 (de)
HU (1) HU226880B1 (de)
WO (1) WO1998032696A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834979B1 (fr) * 2002-01-21 2004-02-20 Pechiney Aluminium Solubilisation des carbonates par recyclage des condensats lors de l'attaque sous pression des bauxites a monohydrates
FR2846319B1 (fr) * 2002-10-25 2004-12-10 Pechiney Aluminium Procede d'attaque de la bauxite ameliorant la filtrabilite des boues en sortie d'attaque
FR2870535B1 (fr) * 2004-05-18 2007-02-16 Aluminium Pechiney Soc Par Act Perfectionnement au procede bayer de production de trihydrate d'alumine par attaque alcaline de bauxite, ledit procede comportant une etape de predessilicatation
CN1332884C (zh) * 2005-04-29 2007-08-22 华建村 一种铝酸钠溶液的生产方法
CN100406384C (zh) * 2005-11-25 2008-07-30 中国铝业股份有限公司 一种混联法氧化铝生产拜耳法溶出矿浆稀释方法
ES2953483T3 (es) * 2018-11-26 2023-11-13 Alunorte Alumina Do Norte Do Brasil S A Proceso y sistema para producir alúmina a partir de mineral de bauxita
CN111592022B (zh) * 2020-04-20 2023-05-12 中铝山东新材料有限公司 一种拟薄水铝石的生产方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701752A (en) * 1951-12-19 1955-02-08 Kaiser Aluminium Chem Corp Process for the production of alumina
US3390959A (en) * 1965-04-30 1968-07-02 Nalco Chemical Co Process of making alumina
CA1330865C (en) * 1989-01-31 1994-07-26 George Dennison Fulford Process for producing alumina from bauxite
FR2728556B1 (fr) * 1994-12-22 1997-01-31 Pechiney Aluminium Procede d'elimination du fer dans les liqueurs d'aluminate de sodium issues de l'attaque alcaline de bauxite a monohydrate d'alumine
FR2732332B1 (fr) * 1995-03-31 1997-05-09 Pechiney Aluminium Procede de traitement de bauxite a trihydrate d'alumine a basse teneur en silice reactive

Also Published As

Publication number Publication date
EP0960069B1 (de) 2001-12-12
HUP0001730A2 (hu) 2000-12-28
DE69802904T2 (de) 2002-08-29
WO1998032696A1 (fr) 1998-07-30
US20010012498A1 (en) 2001-08-09
HUP0001730A3 (en) 2002-02-28
CN1243496A (zh) 2000-02-02
CA2278658A1 (fr) 1998-07-30
FR2758544A1 (fr) 1998-07-24
ES2169904T3 (es) 2002-07-16
AU736050B2 (en) 2001-07-26
AU5994098A (en) 1998-08-18
US6296818B2 (en) 2001-10-02
HU226880B1 (en) 2010-01-28
FR2758544B1 (fr) 1999-02-26
EP0960069A1 (de) 1999-12-01
CA2278658C (fr) 2007-01-02
CN1098810C (zh) 2003-01-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition