FR2405899A1 - NEW CRYSTALLINE ALUMINA MONOHYDRATE USEFUL AS A CATALYST SUPPORT AND ITS PREPARATION PROCESS - Google Patents
NEW CRYSTALLINE ALUMINA MONOHYDRATE USEFUL AS A CATALYST SUPPORT AND ITS PREPARATION PROCESSInfo
- Publication number
- FR2405899A1 FR2405899A1 FR7808965A FR7808965A FR2405899A1 FR 2405899 A1 FR2405899 A1 FR 2405899A1 FR 7808965 A FR7808965 A FR 7808965A FR 7808965 A FR7808965 A FR 7808965A FR 2405899 A1 FR2405899 A1 FR 2405899A1
- Authority
- FR
- France
- Prior art keywords
- alumina
- suspension
- degrees
- temperature
- useful
- 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.)
- Granted
Links
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 5
- 239000003054 catalyst Substances 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title abstract 2
- 150000004682 monohydrates Chemical class 0.000 title 1
- 239000000725 suspension Substances 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 3
- 229910018404 Al2 O3 Inorganic materials 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- -1 alkali metal aluminate Chemical class 0.000 abstract 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 239000012065 filter cake Substances 0.000 abstract 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
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- B01J35/30—
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- B01J35/31—
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- B01J35/615—
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- B01J35/635—
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- B01J35/638—
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- B01J35/647—
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- 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
- C01F7/021—After-treatment of oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/60—Compounds characterised by their crystallite size
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/11—Powder tap density
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
- C01P2006/17—Pore diameter distribution
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/21—Attrition-index or crushing strength of granulates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
Abstract
L'invention concerne une alumine alpha monohydratée cristalline utile notamment comme support pour catalyseur et son procédé de préparation. Le procédé de préparation de l'alumine selon l'invention comprend les étapes suivantes : a. on ajoute une solution aqueuse d'un sel d'alumine ayant une concentration en Al2 O3 d'environ 5 à 9 % en poids et une température d'environ 54 à 71 degrés C à de l'eau à une température d'environ 60 à 77 degrés C, ladite solution étant ajoutée en quantité suffisante pour ajuster le pH du mélange à environ 2-5 ; b. on ajoute au mélange une nouvelle quantité de sel d'aluminium en ajoutant simultanément, mais séparément, une solution aqueuse d'un aluminate de métal alcalin ayant une concentration en Al2 O3 d'environ 18 à 22 % en poids et une température d'environ 54 à 71 degrés C pour précipiter l'alumine et former une bouillie d'alumine, en élevant le pH du mélange à une valeur comprise dans la gamme d'environ 7 à environ 8; c. on maintient le pH de la suspension entre environ 7 et environ 8, la température de la suspension entre environ 60 et 82 degrés C et une vitesse d'addition de la solution de sel d'aluminium et de la solution d'aluminate de métal alcalin pour précipiter un intermédiaire boehmite-pseudobochmite; d. on ajuste le pH de la suspension entre environ 9,5 et environ 10,5; et e. on filtre la suspension et on lave le gâteau de filtration.The invention relates to a crystalline alpha alumina monohydrate useful in particular as a support for a catalyst and its method of preparation. The process for preparing the alumina according to the invention comprises the following steps: a. an aqueous solution of an alumina salt having an Al2 O3 concentration of about 5 to 9% by weight and a temperature of about 54 to 71 degrees C is added to water at a temperature of about 60 at 77 degrees C, said solution being added in an amount sufficient to adjust the pH of the mixture to about 2-5; b. a further quantity of aluminum salt is added to the mixture by simultaneously adding, but separately, an aqueous solution of an alkali metal aluminate having an Al2 O3 concentration of about 18 to 22% by weight and a temperature of about 54 to 71 degrees C to precipitate the alumina and form an alumina slurry, raising the pH of the mixture to a value in the range of about 7 to about 8; vs. maintaining the pH of the suspension between about 7 and about 8, the temperature of the suspension between about 60 and 82 degrees C and an addition rate of the aluminum salt solution and the alkali metal aluminate solution to precipitate a boehmite-pseudobochmite intermediate; d. adjusting the pH of the suspension to between about 9.5 and about 10.5; summer. the suspension is filtered and the filter cake washed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/781,393 US4154812A (en) | 1977-03-25 | 1977-03-25 | Process for preparing alumina |
US05/781,379 US4179408A (en) | 1977-03-25 | 1977-03-25 | Process for preparing spheroidal alumina particles |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2405899A1 true FR2405899A1 (en) | 1979-05-11 |
FR2405899B1 FR2405899B1 (en) | 1985-10-04 |
Family
ID=27119846
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7808965A Expired FR2405899B1 (en) | 1977-03-25 | 1978-03-28 | NOVEL CRYSTALLINE ALUMINA MONOHYDRATE USEFUL AS A CATALYST SUPPORT AND PREPARATION METHOD THEREOF |
FR7826852A Expired FR2405900B1 (en) | 1977-03-25 | 1978-09-19 | PROCESS FOR THE PREPARATION OF SPHEROIDAL ALUMINA PARTICLES AND THE USE OF SAID PARTICLES AS CATALYST SUPPORTS |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7826852A Expired FR2405900B1 (en) | 1977-03-25 | 1978-09-19 | PROCESS FOR THE PREPARATION OF SPHEROIDAL ALUMINA PARTICLES AND THE USE OF SAID PARTICLES AS CATALYST SUPPORTS |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS53119800A (en) |
DE (2) | DE2858783C2 (en) |
FR (2) | FR2405899B1 (en) |
GB (4) | GB1603462A (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4392987A (en) * | 1981-12-30 | 1983-07-12 | W. R. Grace & Co. | Alumina spheroids with controlled small particle size and a process for producing them |
FR2518986B1 (en) * | 1981-12-30 | 1985-09-06 | Criceram | PROCESS FOR THE PREPARATION OF HIGH-PURITY ALUMINS FROM IMPURE SOLUTIONS OF ALUMINUM CHLORIDE |
DE3212249C2 (en) * | 1982-04-02 | 1986-08-21 | Condea Chemie GmbH, 2212 Brunsbüttel | Process for the production of spherical clay |
JPS58190823A (en) * | 1982-04-26 | 1983-11-07 | Chiyoda Chem Eng & Constr Co Ltd | Manufacture of alumina carrier |
US4513101A (en) * | 1983-07-27 | 1985-04-23 | W. R. Grace & Co. | Small bead auto exhaust catalyst |
JPS6340724A (en) * | 1986-08-04 | 1988-02-22 | Kumamoto Pref Gov | Production of low-soda alumina powder |
CN1184144C (en) * | 1998-07-06 | 2005-01-12 | 法国石油公司 | Novel dispersisle aluminium hydrate, method for preparing same and use for preparing catalysts |
JP4639443B2 (en) * | 1999-08-30 | 2011-02-23 | 住友化学株式会社 | Boehmite and underlayer of magnetic recording medium formed using the same |
JP3715482B2 (en) * | 1999-11-04 | 2005-11-09 | エヌ・イーケムキャット株式会社 | Carbon monoxide selective oxidation catalyst in hydrogen-containing gas, carbon monoxide removal method using the catalyst, and solid polymer electrolyte fuel cell system |
DE10221668B4 (en) * | 2002-05-16 | 2005-04-28 | Daimler Chrysler Ag | Spherical catalytic converter for internal combustion engines and method for catalyzing exhaust gases or pollutant mixtures |
TWI432381B (en) * | 2005-12-12 | 2014-04-01 | Grace W R & Co | Alumina particles |
JP5973457B2 (en) * | 2010-11-16 | 2016-08-23 | ロディア オペレーションズRhodia Operations | Alumina catalyst support |
FR2984180A1 (en) * | 2011-12-20 | 2013-06-21 | IFP Energies Nouvelles | PROCESS FOR PRODUCING SPHEROIDAL ALUMINA PARTICLES |
TWI579043B (en) | 2012-02-17 | 2017-04-21 | 先進精鍊科技有限公司 | Spheroidal catalyst support and preparation method thereof |
TWI611836B (en) | 2012-02-17 | 2018-01-21 | Advanced Refining Technologies Llc. | Catalyst support and preparation method thereof |
FR2997948B1 (en) * | 2012-11-15 | 2014-11-28 | IFP Energies Nouvelles | PROCESS FOR ISOMERIZING AN AROMATIC C8 CUT IN THE PRESENCE OF A CATALYST BASED ON A EUO ZEOLITE AND A PARTICULAR SODIUM CONTENT |
US10443100B2 (en) | 2014-05-22 | 2019-10-15 | The Scripps Research Institute | Gene expression profiles associated with sub-clinical kidney transplant rejection |
FR3022235B1 (en) * | 2014-06-13 | 2021-05-07 | Ifp Energies Now | HIGH DISPERSIBILITY GEL AND ITS PREPARATION PROCESS |
WO2016022709A1 (en) * | 2014-08-08 | 2016-02-11 | Sasol Performance Chemicals Gmbh | Precipitated alumina and method of preparation |
CN112429755A (en) * | 2020-11-18 | 2021-03-02 | 山东物华新材料科技有限公司 | Preparation method of water treatment active alumina ball |
DE112021007314T5 (en) | 2021-03-19 | 2024-01-04 | Jgc Catalysts And Chemicals Ltd. | Silica-alumina powder, process for producing silica-alumina powder, catalyst for fluid catalytic cracking and process for producing the same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1958710A (en) * | 1933-03-23 | 1934-05-15 | Paul S Moyer | Colloidal aluminum hydroxide and method of making the same |
FR1267749A (en) * | 1960-09-21 | 1961-07-21 | Nalco Chemical Co | Process for the preparation of an alumina catalyst support and resulting products |
FR1414641A (en) * | 1963-12-06 | 1965-10-15 | Grace W R & Co | Improved process for the preparation of alumina gels by atomization and alumina gels obtained by this process |
US3520654A (en) * | 1963-12-06 | 1970-07-14 | Grace W R & Co | Process for the preparation of low density alumina gel |
DE2302724A1 (en) * | 1972-01-19 | 1973-08-09 | Grace W R & Co | Continuous porous alumina prodn - by slurrying solns of sodium aluminate and aluminium sulphate |
US3864451A (en) * | 1973-08-16 | 1975-02-04 | Environics Inc | Method for Removing Nitric Oxide from Combustion Gases |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2492167A (en) * | 1943-06-01 | 1949-12-27 | Socony Vacuum Oil Co Inc | Process of forming alumina-containing gel beads |
DE1592108A1 (en) * | 1964-06-26 | 1970-12-03 | Grace W R & Co | Process for the production of clay gels |
DE1592098C3 (en) | 1965-12-13 | 1978-05-11 | Engelhard Minerals & Chemicals Corp., Murray Hill, N.J. (V.St.A.) | Process for the preparation of spherical alumina particles |
JPS4933321B1 (en) * | 1970-12-07 | 1974-09-06 | ||
US3864461A (en) * | 1972-08-29 | 1975-02-04 | Laporte Industries Ltd | Process for the production of alumina |
JPS5072897A (en) * | 1973-10-31 | 1975-06-16 | ||
US3979334A (en) * | 1975-04-16 | 1976-09-07 | Universal Oil Products Company | Manufacture of spheroidal alumina particles |
-
1978
- 1978-03-23 GB GB29046/80A patent/GB1603462A/en not_active Expired
- 1978-03-23 DE DE2858783A patent/DE2858783C2/de not_active Expired - Lifetime
- 1978-03-23 DE DE19782812875 patent/DE2812875A1/en active Granted
- 1978-03-23 GB GB29154/80A patent/GB1603464A/en not_active Expired
- 1978-03-23 GB GB11808/78A patent/GB1603461A/en not_active Expired
- 1978-03-23 GB GB29047/80A patent/GB1603463A/en not_active Expired
- 1978-03-25 JP JP3479878A patent/JPS53119800A/en active Granted
- 1978-03-28 FR FR7808965A patent/FR2405899B1/en not_active Expired
- 1978-09-19 FR FR7826852A patent/FR2405900B1/en not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1958710A (en) * | 1933-03-23 | 1934-05-15 | Paul S Moyer | Colloidal aluminum hydroxide and method of making the same |
FR1267749A (en) * | 1960-09-21 | 1961-07-21 | Nalco Chemical Co | Process for the preparation of an alumina catalyst support and resulting products |
FR1414641A (en) * | 1963-12-06 | 1965-10-15 | Grace W R & Co | Improved process for the preparation of alumina gels by atomization and alumina gels obtained by this process |
US3520654A (en) * | 1963-12-06 | 1970-07-14 | Grace W R & Co | Process for the preparation of low density alumina gel |
DE2302724A1 (en) * | 1972-01-19 | 1973-08-09 | Grace W R & Co | Continuous porous alumina prodn - by slurrying solns of sodium aluminate and aluminium sulphate |
US3864451A (en) * | 1973-08-16 | 1975-02-04 | Environics Inc | Method for Removing Nitric Oxide from Combustion Gases |
Also Published As
Publication number | Publication date |
---|---|
FR2405899B1 (en) | 1985-10-04 |
GB1603463A (en) | 1981-11-25 |
FR2405900B1 (en) | 1986-04-11 |
FR2405900A1 (en) | 1979-05-11 |
JPH0152328B2 (en) | 1989-11-08 |
DE2812875C2 (en) | 1989-08-31 |
DE2812875A1 (en) | 1978-10-05 |
GB1603464A (en) | 1981-11-25 |
GB1603462A (en) | 1981-11-25 |
JPS53119800A (en) | 1978-10-19 |
DE2858783C2 (en) | 1992-02-06 |
GB1603461A (en) | 1981-11-25 |
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Legal Events
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CD | Change of name or company name | ||
ST | Notification of lapse |