FR2709302B1 - Procédé de fabrication de trihydrate d'alumine à teneur en sodium et granulométrie réglées. - Google Patents
Procédé de fabrication de trihydrate d'alumine à teneur en sodium et granulométrie réglées.Info
- Publication number
- FR2709302B1 FR2709302B1 FR9310479A FR9310479A FR2709302B1 FR 2709302 B1 FR2709302 B1 FR 2709302B1 FR 9310479 A FR9310479 A FR 9310479A FR 9310479 A FR9310479 A FR 9310479A FR 2709302 B1 FR2709302 B1 FR 2709302B1
- Authority
- FR
- France
- Prior art keywords
- manufacture
- particle size
- sodium content
- alumina trihydrate
- controlled particle
- 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
- C01F7/14—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)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9310479A FR2709302B1 (fr) | 1993-08-26 | 1993-08-26 | Procédé de fabrication de trihydrate d'alumine à teneur en sodium et granulométrie réglées. |
CN94109563.0A CN1035169C (zh) | 1993-08-26 | 1994-08-19 | 制造可控制钠含量和颗粒尺寸的三水氧化铝的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9310479A FR2709302B1 (fr) | 1993-08-26 | 1993-08-26 | Procédé de fabrication de trihydrate d'alumine à teneur en sodium et granulométrie réglées. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2709302A1 FR2709302A1 (fr) | 1995-03-03 |
FR2709302B1 true FR2709302B1 (fr) | 1995-09-22 |
Family
ID=9450521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9310479A Expired - Lifetime FR2709302B1 (fr) | 1993-08-26 | 1993-08-26 | Procédé de fabrication de trihydrate d'alumine à teneur en sodium et granulométrie réglées. |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN1035169C (fr) |
FR (1) | FR2709302B1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
EP1385622B1 (fr) | 2001-05-10 | 2014-07-09 | Albemarle Netherlands B.V. | Procédé continu de conversion efficiente de particules solides inorganiques |
CN1865141B (zh) * | 2005-05-18 | 2010-10-27 | 贵阳铝镁设计研究院 | 提高氧化铝生产中溶出液Rp的方法 |
CN100383046C (zh) * | 2005-07-18 | 2008-04-23 | 贵阳铝镁设计研究院 | 提高原矿浆固含的工艺方法 |
CN100572277C (zh) * | 2007-05-31 | 2009-12-23 | 中国铝业股份有限公司 | 一种改进的串联法生产氧化铝的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4014985A (en) * | 1975-12-22 | 1977-03-29 | Aluminum Company Of America | Precipitation of aluminum oxide having low sodium oxide content |
US4150952A (en) * | 1977-07-21 | 1979-04-24 | Ormet Corporation | Method of controlling the amount of seed material in the precipitation stage of the Bayer process |
FR2529877A1 (fr) * | 1982-07-08 | 1984-01-13 | Pechiney Aluminium | Procede de production d'un trihydroxyde d'aluminium de grosse granulometrie |
FR2551429B2 (fr) * | 1983-09-05 | 1985-10-18 | Pechiney Aluminium | Procede de production d'un trihydroxyde d'aluminium de granulometrie grosse et reguliere |
WO1993016957A1 (fr) * | 1992-02-19 | 1993-09-02 | Comalco Aluminium Limited | Amelioration dans la production de l'alumine |
-
1993
- 1993-08-26 FR FR9310479A patent/FR2709302B1/fr not_active Expired - Lifetime
-
1994
- 1994-08-19 CN CN94109563.0A patent/CN1035169C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1106359A (zh) | 1995-08-09 |
FR2709302A1 (fr) | 1995-03-03 |
CN1035169C (zh) | 1997-06-18 |
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