DE3486433D1 - Bayer-Verfahren zur Herstellung von Aluminiumhydroxid - Google Patents
Bayer-Verfahren zur Herstellung von AluminiumhydroxidInfo
- Publication number
- DE3486433D1 DE3486433D1 DE3486433T DE3486433T DE3486433D1 DE 3486433 D1 DE3486433 D1 DE 3486433D1 DE 3486433 T DE3486433 T DE 3486433T DE 3486433 T DE3486433 T DE 3486433T DE 3486433 D1 DE3486433 D1 DE 3486433D1
- Authority
- DE
- Germany
- Prior art keywords
- production
- aluminum hydroxide
- bayer process
- bayer
- hydroxide
- 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
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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/613,701 US4511542A (en) | 1984-05-24 | 1984-05-24 | Bayer process production of alumina hydrate |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3486433D1 true DE3486433D1 (de) | 1996-07-18 |
DE3486433T2 DE3486433T2 (de) | 1996-10-10 |
Family
ID=24458366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3486433T Expired - Fee Related DE3486433T2 (de) | 1984-05-24 | 1984-10-18 | Bayer-Verfahren zur Herstellung von Aluminiumhydroxid |
Country Status (8)
Country | Link |
---|---|
US (1) | US4511542A (de) |
EP (1) | EP0166053B1 (de) |
JP (1) | JPS60251125A (de) |
AU (1) | AU560914B2 (de) |
CA (1) | CA1207982A (de) |
DE (1) | DE3486433T2 (de) |
HU (1) | HU204229B (de) |
YU (1) | YU12785A (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2551429B2 (fr) * | 1983-09-05 | 1985-10-18 | Pechiney Aluminium | Procede de production d'un trihydroxyde d'aluminium de granulometrie grosse et reguliere |
US4568527A (en) * | 1984-11-06 | 1986-02-04 | Kaiser Aluminum & Chemical Corporation | Utilization of partially calcined alumina as precipitation aid in the Bayer process |
FR2573414B1 (fr) * | 1984-11-22 | 1989-12-01 | Pechiney Aluminium | Procede de mise en oeuvre d'un amorcage en deux temps pour l'obtention d'alumine a gros grains |
FR2598701B1 (fr) * | 1986-05-15 | 1988-08-05 | Pechiney Aluminium | Procede et dispositif de decomposition de liqueur d'aluminate de sodium pour la production d'alumine |
US5306480A (en) * | 1986-07-16 | 1994-04-26 | Alcan International Limited | Alumina hydrates |
GB8617387D0 (en) * | 1986-07-16 | 1986-08-20 | Alcan Int Ltd | Alumina hydrates |
US4900537A (en) * | 1986-12-11 | 1990-02-13 | Biotage, Inc. | Control of form of crystal precipitation of aluminum hydroxide using cosolvents and varying caustic concentration |
US4822593A (en) * | 1986-12-11 | 1989-04-18 | Aluminum Company Of America | Control of form of crystal precipitation of aluminum hydroxide using cosolvents and varying caustic concentration |
US5127950A (en) * | 1989-09-14 | 1992-07-07 | Lonza Ltd. | Short-prismatic aluminum hydroxide, process for preparing same from supersaturated sodium aluminate-liquor, and compositions containing same |
US5102426A (en) * | 1990-02-14 | 1992-04-07 | Alcan International Limited | Process for precipitating alumina from bayer process liquor |
WO1993016957A1 (en) * | 1992-02-19 | 1993-09-02 | Comalco Aluminium Limited | Improvements in alumina plants |
CA2163826C (en) * | 1994-11-30 | 2006-03-14 | Iwan Dilip Kumar Hiralal | Process for the precipitation of aluminum trihydroxide from a supersaturated sodium aluminate solution |
FR2782710B1 (fr) * | 1998-09-02 | 2000-10-06 | Pechiney Aluminium | Procede de controle granulometrique dans une chaine de decomposition du circuit bayer, incluant une phase d'agglomeration |
US6217622B1 (en) * | 1998-10-22 | 2001-04-17 | Alcan International Limited | Method and apparatus for precipitating and classifying solids in high concentrations |
US6589908B1 (en) * | 2000-11-28 | 2003-07-08 | Shell Oil Company | Method of making alumina having bimodal pore structure, and catalysts made therefrom |
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 |
CN100398445C (zh) * | 2006-09-11 | 2008-07-02 | 中国铝业股份有限公司 | 两种浓度***生产高强度氧化铝的方法 |
US20130189529A1 (en) * | 2009-09-25 | 2013-07-25 | Nalco Company | Mitigation and control of aluminosilicate scale through a novel feeding strategy of the inhibitor |
KR100996472B1 (ko) * | 2010-04-16 | 2010-11-25 | 주식회사 해마루에너지 | 고순도 수산화알루미늄 제조방법 |
US8329072B2 (en) | 2010-11-24 | 2012-12-11 | Brimrock International Inc. | Method and system for generating sulfur seeds and granules |
CN102303881A (zh) * | 2011-08-18 | 2012-01-04 | 中国铝业股份有限公司 | 一种钛白粉用氢氧化铝的制备方法 |
CN103086407B (zh) * | 2011-11-01 | 2015-07-22 | 沈阳铝镁设计研究院有限公司 | 种分母液消泡的方法及*** |
CN103408048B (zh) * | 2013-08-29 | 2015-02-11 | 东北大学设计研究院(有限公司) | 一种拜耳法生产氧化铝的过滤集成一体化装置及方法 |
CN105399102A (zh) * | 2014-09-10 | 2016-03-16 | 贵州万方铝化科技开发有限公司 | 对含硅矿物气相脱硅并循环利用含卤素物质的方法 |
CN109650421B (zh) * | 2018-12-26 | 2021-03-16 | 贵州博汇联润铝业有限公司 | 一种强制混合布料降低氢氧化铝微粉钠含量方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2707669A (en) * | 1951-02-06 | 1955-05-03 | Kaiser Aluminium Chem Corp | Alumina production |
US3486850A (en) * | 1967-02-16 | 1969-12-30 | Kaiser Aluminium Chem Corp | Flash cooling of liquor during the continuous precipitation of alumina hydrate from bayer process liquor |
JPS5456999A (en) * | 1977-10-17 | 1979-05-08 | Nippon Light Metal Co | Preparation of crude alumina particles |
CH644332A5 (de) * | 1978-11-07 | 1984-07-31 | Alusuisse | Verfahren zur herstellung von grobem aluminiumhydroxid. |
JPS5951489B2 (ja) * | 1979-08-13 | 1984-12-14 | 住友アルミニウム製錬株式会社 | 粗大粒子水酸化アルミニウムの製造方法 |
US4305913A (en) * | 1980-08-06 | 1981-12-15 | Kaiser Aluminum & Chemical Corporation | Alumina hydrate production from Bayer liquor by seeding |
JPS57140316A (en) * | 1981-02-20 | 1982-08-30 | Sumitomo Alum Smelt Co Ltd | Manufacture of coarse granular aluminum hydroxide |
FR2529877A1 (fr) * | 1982-07-08 | 1984-01-13 | Pechiney Aluminium | Procede de production d'un trihydroxyde d'aluminium de grosse granulometrie |
EP0102403B1 (de) * | 1982-09-02 | 1986-03-05 | Alcoa Chemie GmbH | Verbessertes Verfahren zur Gewinnung von Tonerde |
-
1984
- 1984-05-24 US US06/613,701 patent/US4511542A/en not_active Expired - Lifetime
- 1984-10-18 DE DE3486433T patent/DE3486433T2/de not_active Expired - Fee Related
- 1984-10-18 EP EP84307178A patent/EP0166053B1/de not_active Expired - Lifetime
- 1984-10-19 CA CA000465922A patent/CA1207982A/en not_active Expired
- 1984-10-22 AU AU34543/84A patent/AU560914B2/en not_active Ceased
- 1984-11-14 JP JP59240397A patent/JPS60251125A/ja active Pending
-
1985
- 1985-01-28 YU YU00127/85A patent/YU12785A/xx unknown
- 1985-02-13 HU HU85535A patent/HU204229B/hu not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA1207982A (en) | 1986-07-22 |
AU3454384A (en) | 1985-11-28 |
EP0166053A1 (de) | 1986-01-02 |
JPS60251125A (ja) | 1985-12-11 |
AU560914B2 (en) | 1987-04-16 |
HU204229B (en) | 1991-12-30 |
US4511542A (en) | 1985-04-16 |
HUT37104A (en) | 1985-11-28 |
DE3486433T2 (de) | 1996-10-10 |
YU12785A (en) | 1987-12-31 |
EP0166053B1 (de) | 1996-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |