DE69801515D1 - Herstellung von aluminiumhydroxid mit getrennter kontrolle des natriumgehalts und der korngrösse - Google Patents

Herstellung von aluminiumhydroxid mit getrennter kontrolle des natriumgehalts und der korngrösse

Info

Publication number
DE69801515D1
DE69801515D1 DE69801515T DE69801515T DE69801515D1 DE 69801515 D1 DE69801515 D1 DE 69801515D1 DE 69801515 T DE69801515 T DE 69801515T DE 69801515 T DE69801515 T DE 69801515T DE 69801515 D1 DE69801515 D1 DE 69801515D1
Authority
DE
Germany
Prior art keywords
production
grain size
aluminum hydroxide
separate control
sodium content
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
DE69801515T
Other languages
English (en)
Other versions
DE69801515T2 (de
Inventor
Kadi Bassam El
Philippe Clerin
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
Publication of DE69801515D1 publication Critical patent/DE69801515D1/de
Application granted granted Critical
Publication of DE69801515T2 publication Critical patent/DE69801515T2/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
    • C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
    • C01F7/144—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
DE69801515T 1997-11-17 1998-11-16 Herstellung von aluminiumhydroxid mit getrennter kontrolle des natriumgehalts und der korngrösse Expired - Lifetime DE69801515T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9714590A FR2771081B1 (fr) 1997-11-17 1997-11-17 Production de trihydrate d'alumine avec controle separe de la teneur en sodium et de la granulometrie
PCT/FR1998/002443 WO1999025653A1 (fr) 1997-11-17 1998-11-16 Production de trihydrate d'alumine avec controle separe de la teneur en sodium et de la granulometrie

Publications (2)

Publication Number Publication Date
DE69801515D1 true DE69801515D1 (de) 2001-10-04
DE69801515T2 DE69801515T2 (de) 2002-05-08

Family

ID=9513606

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69801515T Expired - Lifetime DE69801515T2 (de) 1997-11-17 1998-11-16 Herstellung von aluminiumhydroxid mit getrennter kontrolle des natriumgehalts und der korngrösse

Country Status (12)

Country Link
US (1) US6391277B1 (de)
EP (1) EP1032540B1 (de)
AU (1) AU743960B2 (de)
BR (1) BR9814874A (de)
CA (1) CA2310128C (de)
DE (1) DE69801515T2 (de)
ES (1) ES2161551T3 (de)
FR (1) FR2771081B1 (de)
HU (1) HU226660B1 (de)
OA (1) OA11382A (de)
UA (1) UA60350C2 (de)
WO (1) WO1999025653A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CA2542516C (en) * 2003-10-22 2012-09-04 Comalco Aluminium Limited Destruction of organics in bayer process streams
GB0413511D0 (en) * 2004-06-17 2004-07-21 Accentus Plc Precipitation of gibbsite from a bayer liquor
GB0415227D0 (en) * 2004-07-07 2004-08-11 Accentus Plc Precipitation of silica in a Bayer process
CN100398447C (zh) * 2005-01-21 2008-07-02 中南大学 一种从高硅铝土矿中提取氧化铝的方法
CN100406386C (zh) * 2005-06-01 2008-07-30 贵阳铝镁设计研究院 控制氢氧化铝析出速度的方法及装置
CN100427396C (zh) * 2006-09-05 2008-10-22 中国铝业股份有限公司 一种拜耳法种分生产氧化铝的方法
CN101607724B (zh) * 2008-06-19 2010-12-15 北京化工大学 一种利用氢氧化钠溶出铝土矿中氧化铝的方法
CN108585007B (zh) * 2018-01-30 2019-11-08 中南大学 一种协同调控强化铝酸钠溶液晶种分解的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE721178C (de) * 1937-12-22 1942-05-28 Hans Tiedemann Dr Ing Ausruehren von Tonerdehydrat
US3649184A (en) * 1969-05-29 1972-03-14 Reynolds Metals Co Precipitation of alumina hydrate
NO135059C (de) * 1975-04-16 1977-02-02 Norsk Hydro As
DE2531646A1 (de) * 1975-07-15 1977-02-03 Ekato Werke Verfahren und vorrichtung zur herstellung von tonerde
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
US6217622B1 (en) * 1998-10-22 2001-04-17 Alcan International Limited Method and apparatus for precipitating and classifying solids in high concentrations

Also Published As

Publication number Publication date
HUP0102746A2 (hu) 2001-11-28
OA11382A (fr) 2004-01-27
BR9814874A (pt) 2000-10-03
FR2771081B1 (fr) 1999-12-17
UA60350C2 (uk) 2003-10-15
HUP0102746A3 (en) 2003-03-28
FR2771081A1 (fr) 1999-05-21
HU226660B1 (en) 2009-06-29
AU743960B2 (en) 2002-02-07
US6391277B1 (en) 2002-05-21
CA2310128A1 (fr) 1999-05-27
ES2161551T3 (es) 2001-12-01
AU1243099A (en) 1999-06-07
EP1032540B1 (de) 2001-08-29
DE69801515T2 (de) 2002-05-08
EP1032540A1 (de) 2000-09-06
CA2310128C (fr) 2009-01-27
WO1999025653A1 (fr) 1999-05-27

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