OA02776A - Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium. - Google Patents
Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium.Info
- Publication number
- OA02776A OA02776A OA53224A OA53224A OA02776A OA 02776 A OA02776 A OA 02776A OA 53224 A OA53224 A OA 53224A OA 53224 A OA53224 A OA 53224A OA 02776 A OA02776 A OA 02776A
- Authority
- OA
- OAPI
- Prior art keywords
- bauxite
- solution
- caustic soda
- improved process
- sodium aluminate
- Prior art date
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 title 3
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 title 1
- 229910001570 bauxite Inorganic materials 0.000 title 1
- 229910001388 sodium aluminate Inorganic materials 0.000 title 1
- 235000011121 sodium hydroxide Nutrition 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
- B01D1/10—Evaporators with vertical tubes with long tubes, e.g. Kestner evaporators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
- B01D1/065—Evaporators with vertical tubes by film evaporating
-
- 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
- C01F7/066—Treatment of the separated residue
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR99393A FR1523302A (fr) | 1967-03-20 | 1967-03-20 | Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| OA02776A true OA02776A (fr) | 1970-12-15 |
Family
ID=8627173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| OA53224A OA02776A (fr) | 1967-03-20 | 1968-03-20 | Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3579294A (enExample) |
| BE (1) | BE712349A (enExample) |
| ES (1) | ES351740A1 (enExample) |
| FR (1) | FR1523302A (enExample) |
| GB (1) | GB1227023A (enExample) |
| NL (1) | NL6803857A (enExample) |
| NO (1) | NO125487B (enExample) |
| OA (1) | OA02776A (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3868442A (en) * | 1972-09-05 | 1975-02-25 | Aluminum Co Of America | Alumina extraction |
| US4145398A (en) * | 1974-02-19 | 1979-03-20 | Vereinigte Aluminium-Werke A.G. | Bauxite digestion by caustic alkali with improved heat transfer in tubular reactors |
| GB8906500D0 (en) * | 1989-03-21 | 1989-05-04 | Shell Int Research | Process for the production of aluminium hydroxide from bauxite |
| ES2047956T3 (es) * | 1989-11-27 | 1994-03-01 | Alcan Int Ltd | Procedimiento de calcinacion para la produccion de alumina a partir de trihidrato de alumina y aparato para esto. |
-
1967
- 1967-03-20 FR FR99393A patent/FR1523302A/fr not_active Expired
-
1968
- 1968-03-15 US US713421A patent/US3579294A/en not_active Expired - Lifetime
- 1968-03-18 BE BE712349D patent/BE712349A/xx unknown
- 1968-03-18 ES ES351740A patent/ES351740A1/es not_active Expired
- 1968-03-18 NO NO1032/68A patent/NO125487B/no unknown
- 1968-03-19 NL NL6803857A patent/NL6803857A/xx not_active Application Discontinuation
- 1968-03-19 GB GB1227023D patent/GB1227023A/en not_active Expired
- 1968-03-20 OA OA53224A patent/OA02776A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3579294A (en) | 1971-05-18 |
| NL6803857A (enExample) | 1968-09-23 |
| DE1667823A1 (de) | 1972-11-09 |
| DE1667823B2 (de) | 1973-08-16 |
| FR1523302A (fr) | 1968-05-03 |
| NO125487B (enExample) | 1972-09-18 |
| ES351740A1 (es) | 1969-12-01 |
| GB1227023A (enExample) | 1971-03-31 |
| BE712349A (enExample) | 1968-09-18 |
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