GB1181479A - Process for the preparation of Fine-Sized Aluminas - Google Patents

Process for the preparation of Fine-Sized Aluminas

Info

Publication number
GB1181479A
GB1181479A GB27541/68A GB2754168A GB1181479A GB 1181479 A GB1181479 A GB 1181479A GB 27541/68 A GB27541/68 A GB 27541/68A GB 2754168 A GB2754168 A GB 2754168A GB 1181479 A GB1181479 A GB 1181479A
Authority
GB
United Kingdom
Prior art keywords
alumina
aluminas
surface areas
june
aluminium
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
GB27541/68A
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.)
WR Grace and Co
Original Assignee
WR Grace and 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 WR Grace and Co filed Critical WR Grace and Co
Publication of GB1181479A publication Critical patent/GB1181479A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • C01F7/023—Grinding, deagglomeration or disintegration
    • 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
    • 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
    • C01F7/32—Thermal decomposition of sulfates including complex sulfates, e.g. alums
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/40—Compounds of aluminium
    • C09C1/407—Aluminium oxides or hydroxides
    • 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
    • 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
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • 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
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Composite Materials (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

1,181,479. Fine sized alumina. W. R. GRACE & CO. 10 June, 1968 [12 June, 1967], No. 27541/68. Heading C1A. Alumina particles having a particle size of 0À02 to 2 microns are prepared by feeding an aluminium oxide or salt into a size-reduction apparatus, e.g. a fluid energy mill operated above 500‹ F. Aluminium nitrate, sulphate and hydrous alumina can be used in the form of solids, solutions, and in the case of alumina, slurries. Aluminium salts are preferably acidified to pH 1 to 2 before treatment, or neutralized with ammonia, and the mixture milled, or the mixture filtered, and the alumina filter cake milled. The aluminas formed by the invention have surface areas above 5M<2>/gm., but it is possible by varying the conditions of milling to produce gamma aluminas having surface areas of 150 to 200 M<2>/gm. and alpha aluminas with surface areas of 20 to 100 M<2>/gm.
GB27541/68A 1967-06-12 1968-06-10 Process for the preparation of Fine-Sized Aluminas Expired GB1181479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64523167A 1967-06-12 1967-06-12

Publications (1)

Publication Number Publication Date
GB1181479A true GB1181479A (en) 1970-02-18

Family

ID=24588177

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27541/68A Expired GB1181479A (en) 1967-06-12 1968-06-10 Process for the preparation of Fine-Sized Aluminas

Country Status (4)

Country Link
DE (1) DE1767724A1 (en)
FR (1) FR1572611A (en)
GB (1) GB1181479A (en)
NL (1) NL6808180A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182650A (en) * 1985-11-09 1987-05-20 Tioxide Group Plc Finely divided alumina and its manufacture
AU589534B2 (en) * 1986-07-16 1989-10-12 Alcan International Limited Alumina hydrates
CN102807243A (en) * 2012-08-10 2012-12-05 山东大学 Preparation method of aluminum hydroxide gel and microlite alpha-Al2O3 aggregate

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919519B1 (en) * 1968-10-30 1974-05-17
US5306480A (en) * 1986-07-16 1994-04-26 Alcan International Limited Alumina hydrates

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182650A (en) * 1985-11-09 1987-05-20 Tioxide Group Plc Finely divided alumina and its manufacture
US4806333A (en) * 1985-11-09 1989-02-21 Tioxide Group Plc Finely divided oxide and its manufacture
GB2182650B (en) * 1985-11-09 1989-10-04 Tioxide Group Plc Finely divided alumina and its manufacture
AU589534B2 (en) * 1986-07-16 1989-10-12 Alcan International Limited Alumina hydrates
CN102807243A (en) * 2012-08-10 2012-12-05 山东大学 Preparation method of aluminum hydroxide gel and microlite alpha-Al2O3 aggregate

Also Published As

Publication number Publication date
FR1572611A (en) 1969-06-27
DE1767724A1 (en) 1971-09-23
NL6808180A (en) 1968-12-13

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