FR2441422A1 - Procede de preparation de particules d'alumine spheroidales de densite elevee - Google Patents
Procede de preparation de particules d'alumine spheroidales de densite eleveeInfo
- Publication number
- FR2441422A1 FR2441422A1 FR7927951A FR7927951A FR2441422A1 FR 2441422 A1 FR2441422 A1 FR 2441422A1 FR 7927951 A FR7927951 A FR 7927951A FR 7927951 A FR7927951 A FR 7927951A FR 2441422 A1 FR2441422 A1 FR 2441422A1
- Authority
- FR
- France
- Prior art keywords
- ammonia
- particles
- temperature
- spheroidal
- approximately
- 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
- 239000002245 particle Substances 0.000 title abstract 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 9
- 229910021529 ammonia Inorganic materials 0.000 abstract 4
- 239000002243 precursor Substances 0.000 abstract 3
- 150000003863 ammonium salts Chemical class 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-PWCQTSIFSA-N Tritiated water Chemical compound [3H]O[3H] XLYOFNOQVPJJNP-PWCQTSIFSA-N 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 229940095054 ammoniac Drugs 0.000 abstract 1
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000000017 hydrogel Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000203 mixture Substances 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
- C01F7/021—After-treatment of oxides or hydroxides
- C01F7/025—Granulation or agglomeration
-
- 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
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/51—Spheres
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
LA PRESENTE INVENTION A POUR OBJET UN PROCEDE DE PREPARATION DE PARTICULES D'ALUMINE SPHEROIDALES DE DENSITE ELEVEE, CARACTERISE EN CE QU'IL CONSISTE: A.A MELANGER UN PRECURSEUR D'AMMONIAC ET UN HYDROSOL D'ALUMINE ACIDE A UNE TEMPERATURE INFERIEURE A LA TEMPERATURE DE GELIFICATION, CE PRECURSEUR D'AMMONIAC ETANT DECOMPOSABLE EN AMMONIAC LORSQUE LA TEMPERATURE AUGMENTE; B.A DISPERSER LE MELANGE SOUS FORME DE GOUTTELETTES DANS UN BAIN D'HUILE CHAUDE MAINTENU A UNE TEMPERATURE REALISANT LA DECOMPOSITION DU PRECURSEUR D'AMMONIAC ET LA FORMATION DE PARTICULES D'HYDROGEL SPHEROIDALES; C.A SEPARER ET A VIEILLIR LES PARTICULES SPHEROIDALES PENDANT ENVIRON DE 5 A 25HEURES, A UNE TEMPERATURE D'ENVIRON 75 A 105C, DANS UNE SOLUTION AQUEUSE AMMONIACALE CONTENANT ENVIRON 0,5 A 3 EN POIDS D'AMMONIAC ET DE 4 A 20 EN POIDS D'UN SEL D'AMMONIUM, ET A AJUSTER LA DENSITE APPARENTE MOYENNE DE L'ALUMINE SPHEROIDALE OBTENUE DANS LA GAMME ALLANT D'ENVIRON 0,6 A 0,8 EN FAISANT VARIER LA CONCENTRATION DU SEL D'AMMONIUM DANS LA SOLUTION AQUEUSE AMMONIACALE DANS LA GAMME INDIQUEE; ET D.A LAVER A L'EAU, SECHER ET CALCINER LES PARTICULES D'ALUMINE SPHEROIDALES VIEILLIES. CES PARTICULES SONT UTILISABLES COMME CATALYSEUR OU COMME SUPPORT DE CATALYSEUR.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/960,140 US4216122A (en) | 1978-11-13 | 1978-11-13 | Manufacture of high surface area spheroidal alumina particles having a high average bulk density |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2441422A1 true FR2441422A1 (fr) | 1980-06-13 |
| FR2441422B1 FR2441422B1 (fr) | 1983-08-05 |
Family
ID=25502838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7927951A Granted FR2441422A1 (fr) | 1978-11-13 | 1979-11-13 | Procede de preparation de particules d'alumine spheroidales de densite elevee |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4216122A (fr) |
| JP (1) | JPS5833173B2 (fr) |
| CA (1) | CA1136599A (fr) |
| DE (1) | DE2945755C2 (fr) |
| FR (1) | FR2441422A1 (fr) |
| GB (1) | GB2038298B (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4318896A (en) * | 1980-04-14 | 1982-03-09 | Uop Inc. | Manufacture of alumina particles |
| JPS5761626A (en) * | 1980-09-29 | 1982-04-14 | Nikki Universal Co Ltd | Production of spherical alumina |
| US4405500A (en) * | 1980-12-23 | 1983-09-20 | Ec Erdolchemie Gmbh | Halogen compound promoted Al2 O3 and/or SiO2 for the preparation of isoalkenes |
| 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 |
| KR100387218B1 (ko) * | 1996-12-20 | 2003-10-04 | 주식회사 효성 | 알루미나 촉매지지체의 기공량 증진방법 |
| DE19730126A1 (de) * | 1997-07-14 | 1999-01-21 | Basf Ag | Aluminiumoxid enthaltender Feststoff mit großer Oberfläche |
| JP4505247B2 (ja) * | 2004-03-26 | 2010-07-21 | 出光興産株式会社 | 流動層炉におけるタールの除去方法 |
| CN106067778A (zh) * | 2015-04-23 | 2016-11-02 | 松下知识产权经营株式会社 | 磁气部件及电气电路 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3979334A (en) * | 1975-04-16 | 1976-09-07 | Universal Oil Products Company | Manufacture of spheroidal alumina particles |
| FR2381727A1 (fr) * | 1977-02-25 | 1978-09-22 | Nikki Universal Co Ltd | Procede ameliore de fabrication de particules d'alumine spheriques |
| FR2419106A1 (fr) * | 1978-03-06 | 1979-10-05 | Uop Inc | Procede de fabrication de particules spheroidales d'alumine resistant a l'attrition |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL76445C (fr) * | 1950-03-08 | |||
| US2774743A (en) * | 1951-11-21 | 1956-12-18 | Universal Oil Prod Co | Process for producing spheroidal alumina |
| US3887492A (en) * | 1973-07-16 | 1975-06-03 | Universal Oil Prod Co | Preparation of amorphous alumina spheres |
-
1978
- 1978-11-13 US US05/960,140 patent/US4216122A/en not_active Expired - Lifetime
-
1979
- 1979-11-13 FR FR7927951A patent/FR2441422A1/fr active Granted
- 1979-11-13 JP JP54146096A patent/JPS5833173B2/ja not_active Expired
- 1979-11-13 CA CA000339670A patent/CA1136599A/fr not_active Expired
- 1979-11-13 DE DE2945755A patent/DE2945755C2/de not_active Expired
- 1979-11-13 GB GB7939319A patent/GB2038298B/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3979334A (en) * | 1975-04-16 | 1976-09-07 | Universal Oil Products Company | Manufacture of spheroidal alumina particles |
| FR2381727A1 (fr) * | 1977-02-25 | 1978-09-22 | Nikki Universal Co Ltd | Procede ameliore de fabrication de particules d'alumine spheriques |
| FR2419106A1 (fr) * | 1978-03-06 | 1979-10-05 | Uop Inc | Procede de fabrication de particules spheroidales d'alumine resistant a l'attrition |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1136599A (fr) | 1982-11-30 |
| FR2441422B1 (fr) | 1983-08-05 |
| GB2038298A (en) | 1980-07-23 |
| JPS55162425A (en) | 1980-12-17 |
| US4216122A (en) | 1980-08-05 |
| DE2945755A1 (de) | 1980-05-14 |
| DE2945755C2 (de) | 1981-12-03 |
| GB2038298B (en) | 1983-02-09 |
| JPS5833173B2 (ja) | 1983-07-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |