DE69802904D1 - Verbessertes verfahren zur behandlung von aluminiummonohydratreichen bauxiten - Google Patents
Verbessertes verfahren zur behandlung von aluminiummonohydratreichen bauxitenInfo
- 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
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)
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)
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)
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 |
-
1997
- 1997-01-22 FR FR9700850A patent/FR2758544B1/fr not_active Expired - Fee Related
-
1998
- 1998-01-21 AU AU59940/98A patent/AU736050B2/en not_active Ceased
- 1998-01-21 CA CA002278658A patent/CA2278658C/fr not_active Expired - Fee Related
- 1998-01-21 HU HU0001730A patent/HU226880B1/hu not_active IP Right Cessation
- 1998-01-21 DE DE69802904T patent/DE69802904T2/de not_active Expired - Lifetime
- 1998-01-21 CN CN98801842A patent/CN1098810C/zh not_active Expired - Lifetime
- 1998-01-21 ES ES98903098T patent/ES2169904T3/es not_active Expired - Lifetime
- 1998-01-21 WO PCT/FR1998/000104 patent/WO1998032696A1/fr active IP Right Grant
- 1998-01-21 US US09/308,244 patent/US6296818B2/en not_active Expired - Fee Related
- 1998-01-21 EP EP98903098A patent/EP0960069B1/de not_active Expired - Lifetime
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 |