JPH0137332B2 - - Google Patents
Info
- Publication number
- JPH0137332B2 JPH0137332B2 JP61286900A JP28690086A JPH0137332B2 JP H0137332 B2 JPH0137332 B2 JP H0137332B2 JP 61286900 A JP61286900 A JP 61286900A JP 28690086 A JP28690086 A JP 28690086A JP H0137332 B2 JPH0137332 B2 JP H0137332B2
- Authority
- JP
- Japan
- Prior art keywords
- alumina
- slurry
- weight
- particles
- ammonia
- 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
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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
-
- 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
-
- 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
- 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
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/615—100-500 m2/g
-
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/63—Pore volume
- B01J35/635—0.5-1.0 ml/g
-
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/63—Pore volume
- B01J35/638—Pore volume more than 1.0 ml/g
-
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
-
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/651—50-500 nm
-
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/653—500-1000 nm
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S502/00—Catalyst, solid sorbent, or support therefor: product or process of making
- Y10S502/50—Stabilized
- Y10S502/503—Crush strength
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US781379 | 1977-03-25 | ||
US781393 | 1977-03-25 | ||
US05/781,379 US4179408A (en) | 1977-03-25 | 1977-03-25 | Process for preparing spheroidal alumina particles |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62230612A JPS62230612A (ja) | 1987-10-09 |
JPH0137332B2 true JPH0137332B2 (en, 2012) | 1989-08-07 |
Family
ID=25122535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61286900A Granted JPS62230612A (ja) | 1977-03-25 | 1986-12-03 | 球状アルミナ粒子の製造法 |
Country Status (3)
Country | Link |
---|---|
US (2) | US4179408A (en, 2012) |
JP (1) | JPS62230612A (en, 2012) |
CA (1) | CA1126243A (en, 2012) |
Families Citing this family (64)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4318896A (en) * | 1980-04-14 | 1982-03-09 | Uop Inc. | Manufacture of alumina particles |
US4292206A (en) * | 1980-08-22 | 1981-09-29 | American Cyanamid Company | Use of hollow glass spheres in conjunction with rehydratable alumina for making low density catalyst support beads |
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 |
DE3212249C2 (de) * | 1982-04-02 | 1986-08-21 | Condea Chemie GmbH, 2212 Brunsbüttel | Verfahren zur Herstellung von kugelförmiger Tonerde |
JPS594440A (ja) * | 1982-06-29 | 1984-01-11 | Shokubai Kasei Kogyo Kk | 水素化精製触媒の製造法 |
US4476246A (en) * | 1983-01-26 | 1984-10-09 | W. R. Grace & Co. | Doubly promoted platinum group metal catalysts for emission control |
CA1235367A (en) * | 1984-04-05 | 1988-04-19 | Gary J. Green | Method and apparatus for producing uniform liquid droplets |
US4657754A (en) * | 1985-11-21 | 1987-04-14 | Norton Company | Aluminum oxide powders and process |
US5063033A (en) * | 1987-02-10 | 1991-11-05 | Vereinigte Aluminum-Werke Aktiengesellschaft | Process for the production of boehmite |
US5256389A (en) * | 1988-03-07 | 1993-10-26 | Cabot Corporation | High surface area metal oxide foams |
US4937062A (en) * | 1988-03-07 | 1990-06-26 | Cabot Corporation | High surface area metal oxide foams and method of producing the same |
US4854196A (en) * | 1988-05-25 | 1989-08-08 | General Electric Company | Method of forming turbine blades with abradable tips |
AU4316589A (en) * | 1988-09-30 | 1990-04-18 | Ferro Corporation | High surface area alpha-alumina and supercritical fluid synthesis thereof |
DE68908719T2 (de) * | 1988-10-13 | 1994-02-03 | Tioxide Specialties Ltd | Keramische pulver. |
US5147630A (en) * | 1989-06-05 | 1992-09-15 | Reznek Steven R | Method of producing alumina foams |
US5266300A (en) * | 1989-08-02 | 1993-11-30 | Texaco Inc. | Method of making porous alumina |
DE4042594A1 (de) * | 1990-11-05 | 1992-07-02 | Nukem Gmbh | Verfahren zur herstellung von aluminiumoxidkugeln |
US5403799A (en) * | 1992-12-21 | 1995-04-04 | W. R. Grace & Co.-Conn. | Process upset-resistant inorganic supports for bioremediation |
US5395808A (en) * | 1992-12-21 | 1995-03-07 | W. R. Grace & Co.-Conn. | Inorganic supports for bioremediation |
LT3709B (en) | 1993-09-03 | 1996-02-26 | Grace W R & Co | Sorbent from stabilized aluminium oxide including active ingredient for absorbtion of nitric and sulphur oxides and method for processing them |
US6015485A (en) * | 1994-05-13 | 2000-01-18 | Cytec Technology Corporation | High activity catalysts having a bimodal mesopore structure |
JPH09139368A (ja) * | 1995-11-14 | 1997-05-27 | Sony Corp | 化学的機械研磨方法 |
DE19602525A1 (de) * | 1996-01-25 | 1997-08-07 | Starck H C Gmbh Co Kg | Sphärische Keramikformkörper, Verfahren zu ihrer Herstellung sowie deren Verwendung |
JPH1017321A (ja) * | 1996-06-27 | 1998-01-20 | Catalysts & Chem Ind Co Ltd | アルミナ小球体およびその製造方法 |
US6048470A (en) * | 1996-12-20 | 2000-04-11 | Asahi Glass Company Ltd. | Alumina sol, alumina hydrate powder and processes for their production |
DE19730126A1 (de) * | 1997-07-14 | 1999-01-21 | Basf Ag | Aluminiumoxid enthaltender Feststoff mit großer Oberfläche |
US6110862A (en) * | 1998-05-07 | 2000-08-29 | Engelhard Corporation | Catalytic material having improved conversion performance |
US6251823B1 (en) * | 1998-08-12 | 2001-06-26 | Sumitomo Metal Mining Co., Ltd. | Production of spherical catalyst carrier |
DE19836821A1 (de) * | 1998-08-14 | 2000-02-24 | Rwe Dea Ag | Böhmitische Tonerden und aus diesen erhältliche phasenreine, hochtemperaturstabile und hochporöse Aluminiumoxide |
US6262132B1 (en) | 1999-05-21 | 2001-07-17 | Energy International Corporation | Reducing fischer-tropsch catalyst attrition losses in high agitation reaction systems |
US6576588B2 (en) * | 2000-04-07 | 2003-06-10 | Catalytic Distillation Technologies | Process for selective hydrogenation of alkynes and catalyst therefor |
US6503866B1 (en) * | 2000-06-05 | 2003-01-07 | Uop Llc | Attrition resistant catalyst with reduced surface area |
US6508999B1 (en) | 2000-11-21 | 2003-01-21 | Shell Oil Company | Aluminum trihydroxide phase |
US6589908B1 (en) * | 2000-11-28 | 2003-07-08 | Shell Oil Company | Method of making alumina having bimodal pore structure, and catalysts made therefrom |
AU2002341704A1 (en) * | 2001-10-15 | 2003-04-28 | Catalytic Distillation Technologies | Hydrogenation catalyst and hydrogenation process |
US7022645B2 (en) * | 2003-08-04 | 2006-04-04 | Catalytic Distillation Technologies | Ni hydrogenation catalysts, manufacture and use |
RU2258035C2 (ru) * | 2003-09-01 | 2005-08-10 | ОАО "Уральский научно-исследовательский и проектный институт алюминиевой промышленности", ОАО "Уралалюминий" | Способ получения активного оксида алюминия |
US7408089B2 (en) * | 2004-03-19 | 2008-08-05 | Catalytic Distillation Technologies | Ni catalyst, process for making catalysts and selective hydrogenation process |
US7208646B2 (en) | 2004-05-14 | 2007-04-24 | Catalytic Distillation Technologies | Selective hydrogenation of butadiene |
US20060084830A1 (en) * | 2004-10-20 | 2006-04-20 | Catalytic Distillation Technologies | Selective hydrogenation process and catalyst |
EP1863588B1 (en) * | 2004-12-21 | 2017-11-01 | Albemarle Netherlands B.V. | Fcc catalyst, its preparation and use |
US20060173224A1 (en) * | 2005-02-01 | 2006-08-03 | Catalytic Distillation Technologies | Process and catalyst for selective hydrogenation of dienes and acetylenes |
CN1321895C (zh) * | 2005-04-26 | 2007-06-20 | 北京化工大学 | 一种铝溶胶制备过程磁性分离连续精制装置及其应用 |
TWI432381B (zh) * | 2005-12-12 | 2014-04-01 | Grace W R & Co | 氧化鋁粒子 |
US7632773B2 (en) * | 2007-01-04 | 2009-12-15 | Headwaters Technology Innovation, Llc | Methods for manufacturing supported catalyst from a porous support and a nanocatalyst solution |
FR2927267B1 (fr) * | 2008-02-07 | 2010-04-16 | Inst Francais Du Petrole | Catalyseur d'hydrogenation selective et son procede de preparation |
FR2932101B1 (fr) * | 2008-06-06 | 2011-05-13 | Inst Francais Du Petrole | Utilisation de supports soufres pour le reformage catalytique. |
KR101916354B1 (ko) * | 2010-11-16 | 2018-11-07 | 로디아 오퍼레이션스 | 알루미나 촉매 지지체 |
CN103055950B (zh) * | 2011-10-21 | 2014-12-31 | 中国石油化工股份有限公司 | 一种球形氧化铝的制备方法 |
FR2984180A1 (fr) * | 2011-12-20 | 2013-06-21 | IFP Energies Nouvelles | Procede de fabrication de particules spheroidales d'alumine |
TWI579043B (zh) | 2012-02-17 | 2017-04-21 | 先進精鍊科技有限公司 | 球形觸媒支撐物及其製備方法 |
TWI611836B (zh) * | 2012-02-17 | 2018-01-21 | Advanced Refining Technologies Llc. | 觸媒支撐物及其製備方法 |
TWI632235B (zh) | 2012-06-20 | 2018-08-11 | 美商先進精鍊科技有限公司 | 用於殘渣油徑原料之加氫脫硫反應的觸媒及其製備方法 |
US9199226B2 (en) * | 2013-03-15 | 2015-12-01 | Saudi Basic Industries Corporation | Alkane dehydrogenation catalyst performance obtained by a gel synthesis method |
US9896618B2 (en) * | 2015-11-19 | 2018-02-20 | Schlumberger Technology Corporation | Method of making rod-shaped particles for use as proppant and anti-flowback additive |
US10369724B2 (en) * | 2015-11-19 | 2019-08-06 | Schlumberger Technology Corporation | Method of making spheroidal particles |
EP3490706A4 (en) | 2016-08-01 | 2020-04-01 | W.R. Grace & Co.-Conn. | ALUMINA PEPTIZATION PROCESS FOR FLOWABLE CATALYSTS |
US10035133B2 (en) * | 2016-10-25 | 2018-07-31 | GM Global Technology Operations LLC | Catalysts with atomically dispersed platinum group metal complexes and a barrier disposed between the complexes |
CA3125068A1 (en) * | 2018-12-28 | 2020-07-02 | China Petroleum & Chemical Corporation | Pseudo-boehmite, manufacturing process and application thereof |
CN111573698A (zh) * | 2020-04-17 | 2020-08-25 | 中铝山东有限公司 | 一种泡沫活性氧化铝及其制备方法 |
DE112021007314T5 (de) | 2021-03-19 | 2024-01-04 | Jgc Catalysts And Chemicals Ltd. | Siliciumdioxid-Aluminiumoxid-Pulver, Verfahren zur Herstellung von Siliciumdioxid-Aluminiumoxid-Pulver, Katalysator für Fluid Catalytic Cracking und Verfahren zu dessen Herstellung |
CN116020576A (zh) * | 2021-10-27 | 2023-04-28 | 中国石油化工股份有限公司 | 无机氧化物成型干燥一体化设备及无机氧化物球形颗粒的制备方法 |
EP4514749A1 (en) | 2022-04-25 | 2025-03-05 | BASF Corporation | Process for the preparation of particulate alumina |
CN116068897B (zh) * | 2023-01-19 | 2024-12-10 | 北京和隆优化科技股份有限公司 | 一种氧化铝焙烧炉智能优化控制方法及系统 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3173883A (en) * | 1960-12-06 | 1965-03-16 | Air Prod & Chem | Method for producing attrition resistant sorptive alumina particles |
US3257163A (en) * | 1965-02-12 | 1966-06-21 | Du Pont | Method of treating automobile exhaust gases |
DE1592098C3 (de) * | 1965-12-13 | 1978-05-11 | Engelhard Minerals & Chemicals Corp., Murray Hill, N.J. (V.St.A.) | Verfahren zur Herstellung von kugelförmigen Aluminiumoxidteilchen |
US3615207A (en) * | 1969-06-16 | 1971-10-26 | Fmc Corp | Production of hydrogen peroxide by anthraquinone process |
US3635841A (en) * | 1969-06-16 | 1972-01-18 | Engelhard Min & Chem | Novel anthraquinone hydrogenation catalyst |
US3856708A (en) * | 1972-04-10 | 1974-12-24 | Reynolds Metals Co | Alumina catalyst support |
US3850849A (en) * | 1972-05-24 | 1974-11-26 | Norton Co | Formed alumina bodies for catalytic uses |
US4006103A (en) * | 1973-02-27 | 1977-02-01 | Standard Oil Company (Indiana) | Catalyst for treating exhaust gas from internal combustion engine |
FR2223306B1 (en, 2012) * | 1973-03-27 | 1975-08-22 | Rhone Progil | |
US4003851A (en) * | 1973-10-31 | 1977-01-18 | American Cyanamid Company | Stable alumina catalyst support, process therefor, and promoted support |
US3979334A (en) * | 1975-04-16 | 1976-09-07 | Universal Oil Products Company | Manufacture of spheroidal alumina particles |
US4051073A (en) * | 1976-02-13 | 1977-09-27 | General Motors Corporation | Pellet-type oxidation catalyst |
US4154812A (en) * | 1977-03-25 | 1979-05-15 | W. R. Grace & Co. | Process for preparing alumina |
US4116882A (en) * | 1977-12-14 | 1978-09-26 | Continental Oil Company | Method for the formation of alumina spheres |
-
1977
- 1977-03-25 US US05/781,379 patent/US4179408A/en not_active Expired - Lifetime
-
1978
- 1978-03-23 CA CA299,752A patent/CA1126243A/en not_active Expired
-
1979
- 1979-08-08 US US06/064,700 patent/US4279779A/en not_active Expired - Lifetime
-
1986
- 1986-12-03 JP JP61286900A patent/JPS62230612A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
CA1126243A (en) | 1982-06-22 |
US4279779A (en) | 1981-07-21 |
JPS62230612A (ja) | 1987-10-09 |
US4179408A (en) | 1979-12-18 |
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