ES2054490T3 - Procedimiento para la precipitacion de hidroxido de aluminio a partir de un licor del procedimiento bayer. - Google Patents
Procedimiento para la precipitacion de hidroxido de aluminio a partir de un licor del procedimiento bayer.Info
- Publication number
- ES2054490T3 ES2054490T3 ES91903210T ES91903210T ES2054490T3 ES 2054490 T3 ES2054490 T3 ES 2054490T3 ES 91903210 T ES91903210 T ES 91903210T ES 91903210 T ES91903210 T ES 91903210T ES 2054490 T3 ES2054490 T3 ES 2054490T3
- Authority
- ES
- Spain
- Prior art keywords
- particles
- thick
- liquor
- solution
- aluminum 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 - Lifetime
Links
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000001556 precipitation Methods 0.000 title abstract 2
- 239000002245 particle Substances 0.000 abstract 7
- 238000005054 agglomeration Methods 0.000 abstract 3
- 230000002776 aggregation Effects 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 230000003698 anagen phase Effects 0.000 abstract 1
- 230000012010 growth Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
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)
- Paper (AREA)
- Fertilizers (AREA)
Abstract
EL PROCESO COMPRENDE LA DIVISION DE UNA SOLUCION DE LICOR IMPREGNANTEDE ENTRADA EN UNA PARTE INFERIOR AL 10 AL 25% DE LA SOLUCION DE LICOR IMPREGNANTE DE ENTRADA TOTAL, Y EL DIRECCIONAMIENTO DE ESA SOLUCION A UNA SERIE DE PEQUEÑOS TANQUES DONDE A LA SOLUCION INFERIOR SE LE PERMITE AGLOMERARSE. A ESTA SOLUCION SE LE AÑADE PARTICULAS DE HIDROXIDO DE ALUMINIO FINO QUE TIENEN UN TAMAÑO MEDIO DE PARTICULAS DE ENTRE 30 A 60 MICRONES. A CONTINUACION, LA MEZCLA RESULTANTE DE LA FASE DE AGLOMERACION SE DIRIGE A UN CONJUNTO DE RECIPIENTES MAS GRANDES EN LOS QUE TENDRA LUGAR LA FASE DE CRECIMIENTO. EN ESTE PUNTO, LA PARTE RESTANTE DEL LICOR IMPREGNANTE SE COMBINA CON LA MEZCLA RESULTANTE DE LA FASE DE AGLOMERACION. EN EL SEGUNDO CONJUNTO DE RECIPIENTES SE CARGA UNA CARGA DE PARTICULAS GRUESAS DE ENTRE 150 A 600 GRAMOS/LITRO DE PARTICULAS QUE TIENEN UN TAMAÑO MEDIO DE ENTRE 80 Y 100 MICRONES. DE LA MEZCLA RESULTANTE DE LA ETAPA DE CRECIMIENTO SE SEPARAN LAS PARTICULAS DE HIDROXIDO DE ALUMINIO FINAS Y GRUESAS. PARALELA A ESTA PRIMERA CADENA DE PRECIPITACION SE PROPORCIONA UNA O MAS CADENAS SIMILARES MEDIANTE LA INTRODUCCION MUTUA DE SOLUCIONES DE PARTICULAS EN LAS CADENAS EN LAS QUE SE EXPONEN LAS PARTICULAS VARIAS VECES AL LICOR FRESCO. EN LA AGLOMERACION ORIGINAL SE DEPOSITAN SUCESIVAS CAPAS DE HIDRATO QUE AYUDAN A AUMENTAR EL RENDIMIENTO DE UN PRODUCTO CONCENTRADO DE TRIHIDROXIDO DE ALUMINIO GRUESO.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/480,059 US5102426A (en) | 1990-02-14 | 1990-02-14 | Process for precipitating alumina from bayer process liquor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2054490T3 true ES2054490T3 (es) | 1994-08-01 |
Family
ID=23906510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES91903210T Expired - Lifetime ES2054490T3 (es) | 1990-02-14 | 1991-02-11 | Procedimiento para la precipitacion de hidroxido de aluminio a partir de un licor del procedimiento bayer. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5102426A (es) |
| EP (1) | EP0515407B1 (es) |
| AU (1) | AU635821B2 (es) |
| BR (1) | BR9106066A (es) |
| ES (1) | ES2054490T3 (es) |
| IE (1) | IE64939B1 (es) |
| WO (1) | WO1991012205A1 (es) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5163973A (en) * | 1990-02-14 | 1992-11-17 | Alcan Internatinal Limited | Process for producing low soda alumina |
| US5342485A (en) * | 1992-08-05 | 1994-08-30 | Reynolds Metals Company | Process for preparing ultra-white alumina trihydrate |
| EP0714852B1 (en) | 1994-11-30 | 1999-08-18 | Billiton Intellectual Property B.V. | Process for the precipitation of aluminum trihydroxide from a supersaturated sodium aluminate solution |
| DE69511513T2 (de) * | 1994-11-30 | 1999-11-25 | Billiton Intellectual Pty. B.V., Leidschendam | Verfahren zur Ausfällung von Aluminiumhydroxid aus einer übersättigten Natriumaluminatlösung |
| DE69836962T2 (de) | 1998-10-28 | 2007-11-15 | Alcan Technology & Management Ag | Verfahren zur Herstellung von grobkörnigem Aluminiumhydroxyd |
| RU2263635C2 (ru) * | 2003-02-27 | 2005-11-10 | Акционерное общество "Алюминий Казахстана" | Способ осаждения и классификации гидроокиси алюминия |
| RU2256616C2 (ru) * | 2003-07-21 | 2005-07-20 | Открытое акционерное общество "Сибирско-Уральская алюминиевая компания" | Способ отделения гидроксида алюминия от раствора |
| RU2381992C2 (ru) * | 2005-09-26 | 2010-02-20 | Открытое акционерное общество "РУСАЛ Ачинский Глиноземный Комбинат" (ОАО "РУСАЛ Ачинск") | Способ получения песчаного глинозема при переработке глиноземсодержащего сырья способом спекания |
| RU2361815C1 (ru) * | 2007-12-03 | 2009-07-20 | Государственное образовательное учреждение высшего профессионального образования "Уральский государственный технический университет-УПИ" | Способ переработки глиноземсодержащего сырья |
| RU2721702C1 (ru) * | 2019-08-22 | 2020-05-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Красноярский государственный аграрный университет" | Способ очистки отходящих газов от печей спекания глиноземного производства |
Family Cites Families (14)
| 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 |
| US3649184A (en) * | 1969-05-29 | 1972-03-14 | Reynolds Metals Co | Precipitation of alumina hydrate |
| JPS5344920B2 (es) * | 1972-05-08 | 1978-12-02 | ||
| JPS5456999A (en) * | 1977-10-17 | 1979-05-08 | Nippon Light Metal Co | Preparation of crude alumina particles |
| JPS5551720A (en) * | 1978-10-06 | 1980-04-15 | Nippon Light Metal Co Ltd | Manufacture of coarse grain aluminum hydroxide |
| 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 |
| DE3269635D1 (en) * | 1982-09-02 | 1986-04-10 | Alcoa Chemie Gmbh | Process for the production of alumine |
| FR2551429B2 (fr) * | 1983-09-05 | 1985-10-18 | Pechiney Aluminium | Procede de production d'un trihydroxyde d'aluminium de granulometrie grosse et reguliere |
| US4511542A (en) * | 1984-05-24 | 1985-04-16 | Kaiser Aluminum & Chemical Corporation | Bayer process production of alumina hydrate |
| 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 |
-
1990
- 1990-02-14 US US07/480,059 patent/US5102426A/en not_active Expired - Lifetime
-
1991
- 1991-02-11 EP EP91903210A patent/EP0515407B1/en not_active Expired - Lifetime
- 1991-02-11 ES ES91903210T patent/ES2054490T3/es not_active Expired - Lifetime
- 1991-02-11 BR BR919106066A patent/BR9106066A/pt not_active IP Right Cessation
- 1991-02-11 WO PCT/CA1991/000043 patent/WO1991012205A1/en not_active Ceased
- 1991-02-11 AU AU72285/91A patent/AU635821B2/en not_active Expired
- 1991-02-12 IE IE47091A patent/IE64939B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU7228591A (en) | 1991-09-03 |
| BR9106066A (pt) | 1993-01-19 |
| AU635821B2 (en) | 1993-04-01 |
| US5102426A (en) | 1992-04-07 |
| EP0515407B1 (en) | 1994-06-01 |
| IE910470A1 (en) | 1991-08-14 |
| IE64939B1 (en) | 1996-09-20 |
| WO1991012205A1 (en) | 1991-08-22 |
| EP0515407A1 (en) | 1992-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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