GB1065733A - Fine aluminium hydroxides - Google Patents

Fine aluminium hydroxides

Info

Publication number
GB1065733A
GB1065733A GB27775/64A GB2777564A GB1065733A GB 1065733 A GB1065733 A GB 1065733A GB 27775/64 A GB27775/64 A GB 27775/64A GB 2777564 A GB2777564 A GB 2777564A GB 1065733 A GB1065733 A GB 1065733A
Authority
GB
United Kingdom
Prior art keywords
cake
boehmite
alumina gel
al2o3
washing
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
GB27775/64A
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.)
Produits Chimiques Pechiney Saint Gobain
Original Assignee
Produits Chimiques Pechiney Saint Gobain
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 Produits Chimiques Pechiney Saint Gobain filed Critical Produits Chimiques Pechiney Saint Gobain
Publication of GB1065733A publication Critical patent/GB1065733A/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
    • C01F7/021—After-treatment of oxides or hydroxides
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/02—Amorphous compounds
    • 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

Abstract

Alumina monohydrate of boehmite structure, having a surface area from 150-600 m2/g. as measured by the B.E.T. nitrogen-adsorption method, is prepared by developing at 60-120 DEG C. for 15 hours to 10 days a suspension or cake of hydrated amorphous alumina gel containing up to 35% by weight of Al2O3 and a quantity of univalent acid ions, e.g. from HNO3, in proportion of 0.05: 1 to 0.5: 1 relative to the molecules of Al2O3. The cake of alumina gel may be obtained by centrifugal drying, washing and filtering an alumina gel precipitated continuously from sodium aluminate and nitric acid at pH 8-9; a suspension is obtained by diluting the cake. The boehmite may be coagulated by washing with aqueous ammonia and drying; this dry product may then be dispersed in isopropanol or aqueous isopropanol and the dispersion medium distilled off to obtain a powder. Boehmite may be used as a pigment, binding agent, filler and film-forming agent.
GB27775/64A 1963-07-10 1964-07-06 Fine aluminium hydroxides Expired GB1065733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR940954A FR1381282A (en) 1963-07-10 1963-07-10 Very fine aluminum hydrates of the boéhmite variety

Publications (1)

Publication Number Publication Date
GB1065733A true GB1065733A (en) 1967-04-19

Family

ID=8807972

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27775/64A Expired GB1065733A (en) 1963-07-10 1964-07-06 Fine aluminium hydroxides

Country Status (5)

Country Link
BE (1) BE650383A (en)
DE (1) DE1246697B (en)
FR (1) FR1381282A (en)
GB (1) GB1065733A (en)
NL (1) NL6407609A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4629618A (en) * 1983-08-23 1986-12-16 Mitsubishi Chemical Industries Ltd. Boehmite
US4666614A (en) * 1982-06-23 1987-05-19 W. R. Grace & Co. Dispersible alpha alumina monohydrate
US4822593A (en) * 1986-12-11 1989-04-18 Aluminum Company Of America Control of form of crystal precipitation of aluminum hydroxide using cosolvents and varying caustic concentration
US5200069A (en) * 1988-12-28 1993-04-06 Lin Gwochung Separations material
US5207914A (en) * 1988-12-28 1993-05-04 Alcoa Company Of America High performance chromatography
US6130283A (en) * 1996-05-16 2000-10-10 Sumitomo Chemical Company, Limited Aluminum hydroxide, method for producing the same, and method of use of the same
EP1081206A1 (en) * 1999-02-19 2001-03-07 Otsuka Kagaku Kabushiki Kaisha Friction material

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1483002A (en) * 1966-04-21 1967-06-02 Pechiney Saint Gobain Small specific surface aluminum monohydrates and their applications
DE2658479C3 (en) * 1976-12-23 1981-10-01 Rhodia Ag, 7800 Freiburg Additives for smoking tobacco products and their filter elements
FR2449650A1 (en) * 1979-02-26 1980-09-19 Rhone Poulenc Ind PROCESS FOR THE PREPARATION OF ALUMINUM AT LEAST PARTIALLY IN THE FORM OF ULTRA-FINE BOEHMITE
US4584108A (en) * 1983-12-21 1986-04-22 W. R. Grace & Co. Dispersible alpha alumina monohydrate having increased viscosifying properties
US4994253A (en) * 1985-04-04 1991-02-19 Vereinigte Aluminium-Werke Ag Process for the production of large boehmite particles
US5063033A (en) * 1987-02-10 1991-11-05 Vereinigte Aluminum-Werke Aktiengesellschaft Process for the production of boehmite
FR2874837B1 (en) 2004-09-08 2007-02-23 Inst Francais Du Petrole DOPE CATALYST AND IMPROVED PROCESS FOR TREATING HYDROCARBON LOADS
FR2926812B1 (en) 2008-01-28 2010-04-30 Inst Francais Du Petrole OLEFIN OLIGOMERIZATION METHOD USING A SILICA-ALUMINATED CATALYST
DE112021007314T5 (en) 2021-03-19 2024-01-04 Jgc Catalysts And Chemicals Ltd. Silica-alumina powder, process for producing silica-alumina powder, catalyst for fluid catalytic cracking and process for producing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB893852A (en) * 1959-02-20 1962-04-11 Du Pont Improvements relating to alumina

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4666614A (en) * 1982-06-23 1987-05-19 W. R. Grace & Co. Dispersible alpha alumina monohydrate
US4629618A (en) * 1983-08-23 1986-12-16 Mitsubishi Chemical Industries Ltd. Boehmite
US4822593A (en) * 1986-12-11 1989-04-18 Aluminum Company Of America Control of form of crystal precipitation of aluminum hydroxide using cosolvents and varying caustic concentration
US5200069A (en) * 1988-12-28 1993-04-06 Lin Gwochung Separations material
US5207914A (en) * 1988-12-28 1993-05-04 Alcoa Company Of America High performance chromatography
US6130283A (en) * 1996-05-16 2000-10-10 Sumitomo Chemical Company, Limited Aluminum hydroxide, method for producing the same, and method of use of the same
EP1081206A1 (en) * 1999-02-19 2001-03-07 Otsuka Kagaku Kabushiki Kaisha Friction material
EP1081206B1 (en) * 1999-02-19 2004-02-04 Otsuka Kagaku Kabushiki Kaisha Friction material

Also Published As

Publication number Publication date
DE1246697B (en) 1967-08-10
FR1381282A (en) 1964-12-14
NL6407609A (en) 1965-01-11
BE650383A (en) 1965-01-11

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