GB2018230A - Manufacture of spheroidal alumina particles - Google Patents
Manufacture of spheroidal alumina particlesInfo
- Publication number
- GB2018230A GB2018230A GB7907587A GB7907587A GB2018230A GB 2018230 A GB2018230 A GB 2018230A GB 7907587 A GB7907587 A GB 7907587A GB 7907587 A GB7907587 A GB 7907587A GB 2018230 A GB2018230 A GB 2018230A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spheres
- particles
- spheroidal
- aged
- ammonium salt
- 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 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 150000003863 ammonium salts Chemical class 0.000 abstract 2
- 239000000017 hydrogel Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229910052732 germanium Inorganic materials 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 238000002407 reforming Methods 0.000 abstract 1
- 229910052702 rhenium Inorganic materials 0.000 abstract 1
- 230000035882 stress Effects 0.000 abstract 1
- 229910052718 tin Inorganic materials 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
- 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
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0052—Preparation of gels
- B01J13/0056—Preparation of gels containing inorganic material and water
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Catalysts (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Glanulating (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention seeks to provide a method of preparing spheroidal alumina particles of improved physical stability and substantially free from the stress cracks and fractures typical of the prior art. According to the invention alumina hydrogel particles prepared by the oil-drop method are aged in the forming oil at about atmospheric pressure conditions and at a temperature of from 95 DEG to 105 DEG C until the hydrogel spheres achieve a pH of from 6 to 7.5. The forming oil is thereafter displaced with an ammonium salt-buffered aqueous ammoniacal solution containing from 0.5 to 10 wt. % ammonium salt and from 0.1 to 1 wt. % ammonia, and the hydrogen spheres aged therein for a brief period of at least 10 minutes. After further aging in an aqueous ammoniacal solution in accordance with prior art practice, the spheres are water-washed, dried and calcined. The spheroidal alumna particles are mainly used as supports for reforming catalysts comprising Pt group metals with or without Sn, Re, Ge and/or Co component.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88429178A | 1978-03-06 | 1978-03-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2018230A true GB2018230A (en) | 1979-10-17 |
GB2018230B GB2018230B (en) | 1982-05-19 |
Family
ID=25384330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7907587A Expired GB2018230B (en) | 1978-03-06 | 1979-03-05 | Manufacture of spheroidal alumina particles |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS54163798A (en) |
DE (1) | DE2908740C3 (en) |
FR (1) | FR2419106A1 (en) |
GB (1) | GB2018230B (en) |
IT (1) | IT1113441B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3346044A1 (en) * | 1982-12-20 | 1984-07-12 | Société Française des Produits pour Catalyse Pro-Catalyse, S.A., Rueil-Malmaison, Hauts-de-Seine | METHOD FOR TREATING HYDROCARBONS IN THE PRESENCE OF A SOLID CATALYST |
US9945009B2 (en) | 2011-03-18 | 2018-04-17 | Orbite Technologies Inc. | Processes for recovering rare earth elements from aluminum-bearing materials |
US10174402B2 (en) | 2011-09-16 | 2019-01-08 | Orbite Technologies Inc. | Processes for preparing alumina and various other products |
CN117105250A (en) * | 2023-10-19 | 2023-11-24 | 淄博宏豪晶体材料有限公司 | Preparation method of high-strength active alumina balls |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4216122A (en) * | 1978-11-13 | 1980-08-05 | Uop Inc. | Manufacture of high surface area spheroidal alumina particles having a high average bulk density |
JPS57187409U (en) * | 1981-05-23 | 1982-11-27 | ||
JPS5870203A (en) * | 1981-10-23 | 1983-04-26 | Kokusai Denshin Denwa Co Ltd <Kdd> | Fiber unit for optical submarine cable |
JPS62136236A (en) * | 1985-12-10 | 1987-06-19 | Shuzo Nakazono | Preparation of granular substance by spray drying |
EP0507122B1 (en) * | 1991-03-11 | 1995-01-11 | Mitsubishi Oil Co., Ltd. | Process for producing spherical zeolite catalyst and apparatus for producing the same |
RU2013153535A (en) | 2011-05-04 | 2015-06-10 | Орбит Элюминэ Инк. | METHODS FOR RARE EARTH EXTRACTION FROM VARIOUS ORE |
CN103842296B (en) | 2011-06-03 | 2016-08-24 | 奥贝特科技有限公司 | For the method preparing bloodstone |
AU2013202318B2 (en) | 2012-01-10 | 2015-11-05 | Aem Technologies Inc. | Processes for treating red mud |
JP2015518414A (en) | 2012-03-29 | 2015-07-02 | オーバイト アルミナ インコーポレイテッドOrbite Aluminae Inc. | Fly ash treatment process |
RU2597096C2 (en) | 2012-07-12 | 2016-09-10 | Орбит Алюминэ Инк. | Methods of producing titanium oxide and other products |
US9353425B2 (en) | 2012-09-26 | 2016-05-31 | Orbite Technologies Inc. | Processes for preparing alumina and magnesium chloride by HCl leaching of various materials |
US9534274B2 (en) | 2012-11-14 | 2017-01-03 | Orbite Technologies Inc. | Methods for purifying aluminium ions |
RU2765118C1 (en) * | 2021-03-24 | 2022-01-25 | Публичное акционерное общество "Нефтяная компания "Роснефть" (ПАО "НК "Роснефть") | Method for obtaining a spherical aluminum oxide carrier |
CN115608405B (en) * | 2021-07-16 | 2024-02-20 | 中国石油化工股份有限公司 | Millimeter-sized spherical composite carrier, dehydrogenation catalyst, and preparation methods and applications thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB739396A (en) * | 1952-08-15 | 1955-10-26 | Universal Oil Prod Co | Manufacture of spheroidal alumina |
DE1960289C3 (en) * | 1969-12-02 | 1975-09-11 | Kernforschungsanlage Juelich Gmbh, 5170 Juelich | Process for the production of spherical fuel and / or breeding material particles from uranium dioxide for fuel and / or breeding elements for nuclear reactors and breeding reactors |
US3919117A (en) * | 1974-03-18 | 1975-11-11 | Universal Oil Prod Co | Method of preparing alumina spheres |
JPS53104597A (en) * | 1977-02-25 | 1978-09-11 | Nitsuki Yunibaasaru Kk | Method of making spherical alumina |
-
1979
- 1979-03-05 GB GB7907587A patent/GB2018230B/en not_active Expired
- 1979-03-05 IT IT20747/79A patent/IT1113441B/en active
- 1979-03-06 JP JP2604879A patent/JPS54163798A/en active Granted
- 1979-03-06 DE DE2908740A patent/DE2908740C3/en not_active Expired
- 1979-03-06 FR FR7905704A patent/FR2419106A1/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3346044A1 (en) * | 1982-12-20 | 1984-07-12 | Société Française des Produits pour Catalyse Pro-Catalyse, S.A., Rueil-Malmaison, Hauts-de-Seine | METHOD FOR TREATING HYDROCARBONS IN THE PRESENCE OF A SOLID CATALYST |
US9945009B2 (en) | 2011-03-18 | 2018-04-17 | Orbite Technologies Inc. | Processes for recovering rare earth elements from aluminum-bearing materials |
US10174402B2 (en) | 2011-09-16 | 2019-01-08 | Orbite Technologies Inc. | Processes for preparing alumina and various other products |
CN117105250A (en) * | 2023-10-19 | 2023-11-24 | 淄博宏豪晶体材料有限公司 | Preparation method of high-strength active alumina balls |
CN117105250B (en) * | 2023-10-19 | 2023-12-26 | 淄博宏豪晶体材料有限公司 | Preparation method of high-strength active alumina balls |
Also Published As
Publication number | Publication date |
---|---|
DE2908740B2 (en) | 1981-02-26 |
GB2018230B (en) | 1982-05-19 |
DE2908740A1 (en) | 1979-09-13 |
JPS5635607B2 (en) | 1981-08-18 |
FR2419106A1 (en) | 1979-10-05 |
IT1113441B (en) | 1986-01-20 |
JPS54163798A (en) | 1979-12-26 |
DE2908740C3 (en) | 1982-04-08 |
FR2419106B1 (en) | 1982-11-19 |
IT7920747A0 (en) | 1979-03-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940305 |