GB1352921A - Continuous process for preparing extruded alumina bodies - Google Patents

Continuous process for preparing extruded alumina bodies

Info

Publication number
GB1352921A
GB1352921A GB1589671*[A GB1352921DA GB1352921A GB 1352921 A GB1352921 A GB 1352921A GB 1352921D A GB1352921D A GB 1352921DA GB 1352921 A GB1352921 A GB 1352921A
Authority
GB
United Kingdom
Prior art keywords
alumina
slurry
weight
continuous process
ammonium
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
GB1589671*[A
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.)
ChampionX LLC
Original Assignee
Nalco Chemical Co
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 Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of GB1352921A publication Critical patent/GB1352921A/en
Expired legal-status Critical Current

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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/036—Precipitation; Co-precipitation to form a gel or a cogel
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/12—Silica and 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • 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
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
    • C01F7/141—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by neutralisation with an acidic agent
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide

Abstract

1352921 Alumina catalyst carrier NALCO CHEMICAL CO 19 May 1971 15896/71 Heading C1A An alumina or silica-alumina catalyst carrier containing from 0-20% by weight silica is prepared in a continuous process in which a solution of an aluminate of an alkali metal (e.g. sodium aluminate) or ammonium, an acidic reagent (e.g. aluminium sulphate) and from 0-20% based on the dry weight of Al 2 O 3 produced of a silicate salt of an alkali metal (e.g. sodium silicate) or ammonium are reacted in an aqueous medium at a temperature within the range 70-135‹ C. and at a pH of from 5-12 while the concentration of alumina in the so formed slurry is maintained within the range 1-25% as Al 2 O 3 , the slurry is then filtered to increase the concentration of recovered solids to 10-20% by weight of Al 2 O 3 the precipitate dried at from 200-1,000‹ F. and the recovered precipitate in the form of a powder washed either before or after drying, wetted to form a slurry mix which is extruded to form pellets. An aldonate, e.g. gluconic acid may be added to the reaction mixture in an amount from 0À5-6% calculated as gluconic acid based on the dry weight of Al 2 O 3 . The extruded alumina bodies produced by this process may be used as catalyst carriers in fixed bed processes for hydrocracking, desulphurization and hydrogenation processes.
GB1589671*[A 1971-05-19 1971-05-19 Continuous process for preparing extruded alumina bodies Expired GB1352921A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1589671 1971-05-19

Publications (1)

Publication Number Publication Date
GB1352921A true GB1352921A (en) 1974-05-15

Family

ID=10067503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1589671*[A Expired GB1352921A (en) 1971-05-19 1971-05-19 Continuous process for preparing extruded alumina bodies

Country Status (1)

Country Link
GB (1) GB1352921A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130734A2 (en) * 1983-06-20 1985-01-09 Engelhard Corporation Porous mullite production
GB2146633A (en) * 1983-08-04 1985-04-24 Nikki Universal Co Ltd Process of preparing alumina for use as a catalyst carrier
EP0669162A1 (en) * 1994-02-24 1995-08-30 Fina Research S.A. Silica-alumina carriers preparation, hydrogenation catalysts preparation therewith and their use for aromatics hydrogenation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130734A2 (en) * 1983-06-20 1985-01-09 Engelhard Corporation Porous mullite production
EP0130734A3 (en) * 1983-06-20 1986-07-30 Engelhard Corporation Porous mullite
GB2146633A (en) * 1983-08-04 1985-04-24 Nikki Universal Co Ltd Process of preparing alumina for use as a catalyst carrier
EP0669162A1 (en) * 1994-02-24 1995-08-30 Fina Research S.A. Silica-alumina carriers preparation, hydrogenation catalysts preparation therewith and their use for aromatics hydrogenation
US6479004B1 (en) 1994-02-24 2002-11-12 Fina Research, S.A. Silica-alumina carriers preparation, hydrogenation catalysts preparation therewith and their use for aromatics hydrogenation

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
427A Application made for restoration (sect. 27/1949)
427C Application for amendment of specification now open to opposition (sect. 27/1949)
427B Order made restoring the patent (sect. 27/1949)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee