GB1535807A - Spheroidal alumina particles - Google Patents

Spheroidal alumina particles

Info

Publication number
GB1535807A
GB1535807A GB15489/76A GB1548976A GB1535807A GB 1535807 A GB1535807 A GB 1535807A GB 15489/76 A GB15489/76 A GB 15489/76A GB 1548976 A GB1548976 A GB 1548976A GB 1535807 A GB1535807 A GB 1535807A
Authority
GB
United Kingdom
Prior art keywords
alumina particles
spheroidal
mixture
calcining
april
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
Application number
GB15489/76A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell UOP LLC
Original Assignee
UOP LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by UOP LLC filed Critical UOP LLC
Publication of GB1535807A publication Critical patent/GB1535807A/en
Expired legal-status Critical Current

Links

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
    • C01F7/30—Preparation of aluminium oxide or hydroxide by thermal decomposition or by hydrolysis or oxidation of aluminium compounds
    • C01F7/308—Thermal decomposition of nitrates
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • 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
    • B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
    • 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
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

1535807 Spheroidal alumina particles UOP Inc 15 April 1976 [16 April 1975] 15489/76 Heading C1A Spheroidal alumina particles are made by (a) mixing alumina powder, an aluminium salt of a strong acid, a water-soluble surfactant and sufficient water to yield an extrudable mixture; (b) stirring or mulling (i.e. mixing or grinding) the mixture until the decreasing viscosity stabilizes, and extruding the mixture; (c) segmenting and balling the extrudate by centrifugal force on a spinning drum; (d) drying and calcining the resulting spheroidal product. The aluminium salt may be the nitrate, chloride or sulphate. Preferably, calcining is effected for 1-4 hours at 525-775‹ C. in air containing 1-5 wt. per cent steam and then for 1-4 hours at 875-1100‹ C. in air. The product provides a thermally-stable catalyst base.
GB15489/76A 1975-04-16 1976-04-15 Spheroidal alumina particles Expired GB1535807A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56854275A 1975-04-16 1975-04-16

Publications (1)

Publication Number Publication Date
GB1535807A true GB1535807A (en) 1978-12-13

Family

ID=24271712

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15489/76A Expired GB1535807A (en) 1975-04-16 1976-04-15 Spheroidal alumina particles

Country Status (14)

Country Link
JP (1) JPS51135910A (en)
AR (1) AR208228A1 (en)
BE (1) BE840770A (en)
BR (1) BR7602252A (en)
DE (1) DE2615868C3 (en)
ES (1) ES447090A1 (en)
FR (1) FR2307576A1 (en)
GB (1) GB1535807A (en)
IN (1) IN145499B (en)
IT (1) IT1060717B (en)
NL (1) NL7604003A (en)
PT (1) PT64996B (en)
RO (1) RO69972A (en)
ZA (1) ZA762048B (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000014163A1 (en) * 1998-09-08 2000-03-16 Elementis Uk Limited Granular pigments
US6562120B2 (en) * 1998-09-08 2003-05-13 Elementis Uk Limited Granular pigments
US6802958B1 (en) 1998-05-11 2004-10-12 Nippon Ketjen Co., Ltd. Process for producing spherical oxide particles
CN103041869A (en) * 2011-10-17 2013-04-17 中国石油化工股份有限公司 Preparation method of spherical catalyst carrier
CN103041868A (en) * 2011-10-17 2013-04-17 中国石油化工股份有限公司 Preparation method of spherical catalyst carrier
CN103041837A (en) * 2011-10-17 2013-04-17 中国石油化工股份有限公司 Preparation method of spherical hydrogenation catalyst
WO2017137902A1 (en) * 2016-02-08 2017-08-17 Sabic Global Technologies B.V. Method of making a fertilizer seed core
US10640430B2 (en) 2014-01-31 2020-05-05 Saudi Basic Industries Corporation Fertilizer capsule comprising one or more cores and method of making same
US10689306B2 (en) 2015-07-20 2020-06-23 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
US10865159B2 (en) 2015-11-16 2020-12-15 Sabic Global Technologies B.V. Methods of manufacture for coated granular fertilizers
US11021409B2 (en) 2017-08-09 2021-06-01 Sabic Global Technologies B.V. Extruded fertilizer granules with urease and/or nitrification inhibitors
US11104618B2 (en) 2015-07-20 2021-08-31 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
US11124463B2 (en) 2015-11-16 2021-09-21 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses thereof
US11306037B2 (en) 2017-04-19 2022-04-19 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with urease inhibitor and nitrification separated within the same particle
US11345645B2 (en) 2017-04-20 2022-05-31 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with embedded powder composition
US11358908B2 (en) 2017-04-19 2022-06-14 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with urease inhibitor and nitrification inhibitor in separate particles
US11401218B2 (en) 2014-05-05 2022-08-02 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2935914A1 (en) * 1979-09-06 1981-04-02 Kali-Chemie Ag, 3000 Hannover METHOD FOR PRODUCING SPHERICAL SHAPED BODIES BASED ON AL (ARROW DOWN) 2 (ARROW DOWN) O (ARROW DOWN) 3 (ARROW DOWN) AND / OR SIO (ARROW DOWN) 2 (ARROW DOWN)
FR2546513B3 (en) * 1983-03-25 1986-01-03 Micro Rayonnements Cie Fse DRYING AND SPRAYING ASSEMBLY FOR CLAY OR KAOLINIC BARBOTINES
FR2577816A1 (en) * 1985-02-28 1986-08-29 Skid Sa METHOD AND DEVICE FOR WELDING SKIS BY SPRAYING

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912911C (en) * 1951-10-24 1954-06-03 Arthur Eric Jarvis Vickers Refractory cement or mortar
US3154603A (en) * 1961-08-02 1964-10-27 American Cyanamid Co Process for the preparation of spherical contact particles

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6802958B1 (en) 1998-05-11 2004-10-12 Nippon Ketjen Co., Ltd. Process for producing spherical oxide particles
US6562120B2 (en) * 1998-09-08 2003-05-13 Elementis Uk Limited Granular pigments
WO2000014163A1 (en) * 1998-09-08 2000-03-16 Elementis Uk Limited Granular pigments
CN103041869A (en) * 2011-10-17 2013-04-17 中国石油化工股份有限公司 Preparation method of spherical catalyst carrier
CN103041868A (en) * 2011-10-17 2013-04-17 中国石油化工股份有限公司 Preparation method of spherical catalyst carrier
CN103041837A (en) * 2011-10-17 2013-04-17 中国石油化工股份有限公司 Preparation method of spherical hydrogenation catalyst
CN103041868B (en) * 2011-10-17 2014-10-22 中国石油化工股份有限公司 Preparation method of spherical catalyst carrier
CN103041869B (en) * 2011-10-17 2015-04-15 中国石油化工股份有限公司 Preparation method of spherical catalyst carrier
CN103041837B (en) * 2011-10-17 2015-10-21 中国石油化工股份有限公司 A kind of preparation method of spherical hydrogenation catalyst
US10640430B2 (en) 2014-01-31 2020-05-05 Saudi Basic Industries Corporation Fertilizer capsule comprising one or more cores and method of making same
US11401218B2 (en) 2014-05-05 2022-08-02 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses
US10689306B2 (en) 2015-07-20 2020-06-23 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
US11104618B2 (en) 2015-07-20 2021-08-31 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
US10865159B2 (en) 2015-11-16 2020-12-15 Sabic Global Technologies B.V. Methods of manufacture for coated granular fertilizers
US11124463B2 (en) 2015-11-16 2021-09-21 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses thereof
CN108602730A (en) * 2016-02-08 2018-09-28 沙特基础工业全球技术有限公司 The method for preparing fertilizer kind core
WO2017137902A1 (en) * 2016-02-08 2017-08-17 Sabic Global Technologies B.V. Method of making a fertilizer seed core
US11806689B2 (en) 2016-02-08 2023-11-07 Sabic Global Technologies B.V. Method of making a fertilizer seed core
US11306037B2 (en) 2017-04-19 2022-04-19 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with urease inhibitor and nitrification separated within the same particle
US11358908B2 (en) 2017-04-19 2022-06-14 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with urease inhibitor and nitrification inhibitor in separate particles
US11802097B2 (en) 2017-04-19 2023-10-31 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with urease inhibitor and nitrification separated within the same particle
US12006273B2 (en) 2017-04-19 2024-06-11 SABIC Agri-Nutrients Company Enhanced efficiency fertilizer with urease inhibitor and nitrification inhibitor in separate particles
US11345645B2 (en) 2017-04-20 2022-05-31 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with embedded powder composition
US11021409B2 (en) 2017-08-09 2021-06-01 Sabic Global Technologies B.V. Extruded fertilizer granules with urease and/or nitrification inhibitors

Also Published As

Publication number Publication date
PT64996A (en) 1976-05-01
AU1273876A (en) 1977-10-13
DE2615868B2 (en) 1980-07-17
JPS51135910A (en) 1976-11-25
AR208228A1 (en) 1976-12-09
JPS569472B2 (en) 1981-03-02
PT64996B (en) 1977-09-08
IT1060717B (en) 1982-08-20
FR2307576A1 (en) 1976-11-12
BE840770A (en) 1976-08-02
RO69972A (en) 1981-08-30
DE2615868A1 (en) 1976-10-21
NL7604003A (en) 1976-10-19
IN145499B (en) 1978-10-21
DE2615868C3 (en) 1981-04-02
ZA762048B (en) 1977-04-27
ES447090A1 (en) 1977-06-16
BR7602252A (en) 1976-10-12

Similar Documents

Publication Publication Date Title
GB1535807A (en) Spheroidal alumina particles
JPS5527830A (en) Production of alumina carrier
GB1422452A (en) Formed alunina bodies for catalytic uses
ATE2109T1 (en) PROCESSES FOR THE MANUFACTURE OF GELS, THE PRODUCTS OBTAINED FROM THEM AND THEIR USE.
GB1475509A (en) Glass batch materials
KR910009913A (en) Continuous production method of metallic soap
GB1426365A (en) Catalxst carrier
IE34570L (en) Removal of solid particles from an aqueous suspension.
KR880010823A (en) Wash coat for catalyst carrier
GB1438010A (en)
GB1422451A (en) High strength alumina catalyst body
JPS5560022A (en) Production of spherical alumina
JPS5761626A (en) Production of spherical alumina
GB1495806A (en) Method for dispersing fine powder in water
GB1224390A (en) Readily-soluble aluminium-carboxymethylcellulose, its manufacture, and its use for preparing distempers and emulsion paints
AT339914B (en) METHOD OF PREPARING NEW N-PHENYLSULFANYL-N'- (3-AZABICYCLOALKYL) UREA
GB1347106A (en) Preparation of alumina
GB1427862A (en) Antiperspirant product with a long-lasting effect
GB1511720A (en) Sprayable precipitated-silica suspension
GB1452054A (en) Production of highly porous active aluminum oxide granulate
JPS5679629A (en) Preparation of isobutylene oligomer
JPS5523103A (en) Treatment of pigment-adhered fluophor
SU594079A2 (en) Method of preparing oxide powders
SU64561A1 (en) Gypsum production method
ZHAO-YOU Dissolution kinetics of solids and its application to refractories

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee