GB1262340A - Process for preparing highly reactive powders - Google Patents

Process for preparing highly reactive powders

Info

Publication number
GB1262340A
GB1262340A GB20854/69A GB2085469A GB1262340A GB 1262340 A GB1262340 A GB 1262340A GB 20854/69 A GB20854/69 A GB 20854/69A GB 2085469 A GB2085469 A GB 2085469A GB 1262340 A GB1262340 A GB 1262340A
Authority
GB
United Kingdom
Prior art keywords
decomposable
mixture
oxide
aluminium
salt
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
GB20854/69A
Inventor
Moises Gali Sanchez
Rimantas Glemza
Newton Levy Jr
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 GB1262340A publication Critical patent/GB1262340A/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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/157—After-treatment of gels
    • 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
    • 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
    • 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
    • C01P2006/13—Surface area thermal stability thereof at high temperatures
    • 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
    • C01P2006/80—Compositional purity
    • C01P2006/82—Compositional purity water content

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Dispersion Chemistry (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Silicon Compounds (AREA)

Abstract

1,262,340. Oxide powders. W. R. GRACE & CO. 23 April, 1969 [23 April, 1968], No. 20854/69. Headings C1A and C1N High surface area oxide powders composed substantially of particles having a diameter between 0À005 and 0À01 micron agglomerated together are prepared by grinding a precursor of the oxide comprising (a) a mixture of decomposable salts of different metals, .or (b) a decomposable salt of a single metal other than aluminium, or (c) a mixture of silica with a decomposable salt, in the form of a solid, slurry or solution in a fluid energy mill at a temperature of between -500‹ and 1400‹ F. By "decomposable" is meant that the salt decomposes to a solid oxide under the temperature and atmosphere in the mill. The oxide precursors of the examples include decomposable salts of Zr, Fe and Ti, such as the.nitrate, sulphate, carbonate, oxalate and formate, a mixture of silica and ammonium nitrate, and a mixture of decomposable salts of (i) aluminium and chromium, (ii) magnesium and aluminium in an atomic ratio of 1 : 2 to give a spinel of the formula Mg 2 AlO 4 , and (iii) copper and chromium, to give CuCr 2 O 4 .
GB20854/69A 1968-04-23 1969-04-23 Process for preparing highly reactive powders Expired GB1262340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72355668A 1968-04-23 1968-04-23

Publications (1)

Publication Number Publication Date
GB1262340A true GB1262340A (en) 1972-02-02

Family

ID=24906750

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20854/69A Expired GB1262340A (en) 1968-04-23 1969-04-23 Process for preparing highly reactive powders

Country Status (4)

Country Link
JP (1) JPS498637B1 (en)
DE (1) DE1912127A1 (en)
FR (1) FR1601931A (en)
GB (1) GB1262340A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA931737A (en) * 1970-01-28 1973-08-14 W.R. Grace And Co. Doped alumina powder

Also Published As

Publication number Publication date
JPS498637B1 (en) 1974-02-27
FR1601931A (en) 1970-09-21
DE1912127A1 (en) 1969-11-13

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