GB1535808A - Spheroidal alumina particles - Google Patents
Spheroidal alumina particlesInfo
- Publication number
- GB1535808A GB1535808A GB15490/76A GB1549076A GB1535808A GB 1535808 A GB1535808 A GB 1535808A GB 15490/76 A GB15490/76 A GB 15490/76A GB 1549076 A GB1549076 A GB 1549076A GB 1535808 A GB1535808 A GB 1535808A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- ageing
- oil bath
- alumina particles
- temperature
- 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
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 4
- 239000002245 particle Substances 0.000 title abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 4
- 230000032683 aging Effects 0.000 abstract 3
- 229910021529 ammonia Inorganic materials 0.000 abstract 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 abstract 2
- 239000002243 precursor Substances 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 150000001450 anions Chemical class 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000001879 gelation Methods 0.000 abstract 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 abstract 1
- 239000004312 hexamethylene tetramine Substances 0.000 abstract 1
- 239000000017 hydrogel Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229960004011 methenamine Drugs 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
Classifications
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of 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
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
- B01J2/08—Gelation of a colloidal solution
-
- 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
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/568,765 US3979334A (en) | 1975-04-16 | 1975-04-16 | Manufacture of spheroidal alumina particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1535808A true GB1535808A (en) | 1978-12-13 |
Family
ID=24272642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15490/76A Expired GB1535808A (en) | 1975-04-16 | 1976-04-15 | Spheroidal alumina particles |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3979334A (enExample) |
| JP (1) | JPS5813495B2 (enExample) |
| CA (1) | CA1090536A (enExample) |
| DE (1) | DE2615867C3 (enExample) |
| FR (1) | FR2307766A1 (enExample) |
| GB (1) | GB1535808A (enExample) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1603461A (en) * | 1977-03-25 | 1981-11-25 | Grace W R & Co | Process for preparing crystalline allumina |
| US4179408A (en) * | 1977-03-25 | 1979-12-18 | W. R. Grace & Co. | Process for preparing spheroidal alumina particles |
| FR2399276A1 (fr) * | 1977-08-03 | 1979-03-02 | Rhone Poulenc Ind | Procede de fabrication de billes d'alumine |
| US4368132A (en) * | 1978-09-18 | 1983-01-11 | Exxon Research And Engineering Co. | Composition for use in a magnetically fluidized bed |
| US4367153A (en) * | 1978-09-18 | 1983-01-04 | Exxon Research And Engineering Co. | Composition for use in a magnetically fluidized bed |
| JPS5560022A (en) * | 1978-10-26 | 1980-05-06 | Nikki Universal Co Ltd | Production of spherical alumina |
| JPS5814365B2 (ja) * | 1978-11-06 | 1983-03-18 | 日揮ユニバ−サル株式会社 | 球形アルミナの製造法 |
| US4216122A (en) * | 1978-11-13 | 1980-08-05 | Uop Inc. | Manufacture of high surface area spheroidal alumina particles having a high average bulk density |
| US4390456A (en) * | 1979-08-08 | 1983-06-28 | W. R. Grace & Co. | Spheroidal alumina particles and catalysts employing the particles as a support |
| US4394282A (en) * | 1980-12-19 | 1983-07-19 | Exxon Research And Engineering Co. | Composition for use in a magnetically fluidized bed |
| US4399047A (en) * | 1980-12-19 | 1983-08-16 | Exxon Research And Engineering Co. | Composition for use in a magnetically fluidized bed |
| US4541925A (en) * | 1982-09-22 | 1985-09-17 | Exxon Research And Engineering Co. | Composition and hydrotreating process for the operation of a magnetically stabilized fluidized bed |
| US4541920A (en) * | 1982-09-22 | 1985-09-17 | Exxon Research And Engineering Co. | Composition and reforming process for the operation of a magnetically stabilized fluidized bed |
| US4541924A (en) * | 1982-09-22 | 1985-09-17 | Exxon Research And Engineering Co. | Composition and hydrotreating process for the operation of a magnetically stabilized fluidized bed |
| FR2537889B1 (fr) * | 1982-12-20 | 1992-10-09 | Pro Catalyse | Procede de traitement d'hydrocarbures en presence d'un catalyseur a base de billes d'alumine mises en forme par coagulation en gouttes |
| US4717049A (en) * | 1984-04-05 | 1988-01-05 | Mobil Oil Corporation | Droplet generating apparatus |
| US4865444A (en) * | 1984-04-05 | 1989-09-12 | Mobil Oil Corporation | Apparatus and method for determining luminosity of hydrocarbon fuels |
| CA1235367A (en) * | 1984-04-05 | 1988-04-19 | Gary J. Green | Method and apparatus for producing uniform liquid droplets |
| US4819831A (en) * | 1984-04-05 | 1989-04-11 | Mobil Oil Corporation | Droplet generating apparatus |
| JP6623943B2 (ja) | 2016-06-14 | 2019-12-25 | 東京エレクトロン株式会社 | 半導体装置の製造方法、熱処理装置及び記憶媒体。 |
| RU2765118C1 (ru) * | 2021-03-24 | 2022-01-25 | Публичное акционерное общество "Нефтяная компания "Роснефть" (ПАО "НК "Роснефть") | Способ получения сферического алюмооксидного носителя |
| CN117735961B (zh) * | 2023-12-21 | 2024-05-31 | 任红波 | 一种滴定法制备氧化铝研磨介质的方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL76445C (enExample) * | 1950-03-08 | |||
| CA880220A (en) * | 1966-05-26 | 1971-09-07 | D. Vesely Kenneth | Preparation of spherical inorganic oxide particles |
| US3600129A (en) * | 1969-06-17 | 1971-08-17 | Universal Oil Prod Co | Manufacture of low bulk density high strength spherical alumina particles |
-
1975
- 1975-04-16 US US05/568,765 patent/US3979334A/en not_active Expired - Lifetime
-
1976
- 1976-04-10 DE DE2615867A patent/DE2615867C3/de not_active Expired
- 1976-04-14 FR FR7610996A patent/FR2307766A1/fr active Granted
- 1976-04-14 CA CA250,241A patent/CA1090536A/en not_active Expired
- 1976-04-15 GB GB15490/76A patent/GB1535808A/en not_active Expired
- 1976-04-16 JP JP51042595A patent/JPS5813495B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5813495B2 (ja) | 1983-03-14 |
| DE2615867C3 (de) | 1979-12-20 |
| CA1090536A (en) | 1980-12-02 |
| DE2615867B2 (de) | 1979-04-19 |
| JPS51133194A (en) | 1976-11-18 |
| US3979334A (en) | 1976-09-07 |
| FR2307766A1 (fr) | 1976-11-12 |
| DE2615867A1 (de) | 1976-10-21 |
| FR2307766B1 (enExample) | 1980-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |