DK447188D0 - Fremstilling af mikrokrystallinsk boehmit og keramiske legemer - Google Patents

Fremstilling af mikrokrystallinsk boehmit og keramiske legemer

Info

Publication number
DK447188D0
DK447188D0 DK447188A DK447188A DK447188D0 DK 447188 D0 DK447188 D0 DK 447188D0 DK 447188 A DK447188 A DK 447188A DK 447188 A DK447188 A DK 447188A DK 447188 D0 DK447188 D0 DK 447188D0
Authority
DK
Denmark
Prior art keywords
boehmit
microcrystalline
preparation
ceramic bodies
ceramic
Prior art date
Application number
DK447188A
Other languages
English (en)
Other versions
DK172756B1 (da
DK447188A (da
Inventor
Ralph Bauer
Original Assignee
Norton 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 Norton Co filed Critical Norton Co
Publication of DK447188D0 publication Critical patent/DK447188D0/da
Publication of DK447188A publication Critical patent/DK447188A/da
Application granted granted Critical
Publication of DK172756B1 publication Critical patent/DK172756B1/da

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/008—Abrasive bodies without external bonding agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
    • 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
    • C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
    • C01F7/447—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes
    • C01F7/448—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes using superatmospheric pressure, e.g. hydrothermal conversion of gibbsite into boehmite
    • 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
    • C04B35/111—Fine ceramics
    • 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
    • C04B35/111—Fine ceramics
    • C04B35/1115—Minute sintered entities, e.g. sintered abrasive grains or shaped particles such as platelets
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Nanotechnology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Compositions Of Oxide Ceramics (AREA)
DK198804471A 1987-08-11 1988-08-10 Fremstilling af mikrokrystallinsk boehmit DK172756B1 (da)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US8454987A 1987-08-11 1987-08-11
US8454987 1987-08-11
US07/133,584 US4797139A (en) 1987-08-11 1987-12-16 Boehmite produced by a seeded hydyothermal process and ceramic bodies produced therefrom
US13358487 1987-12-16

Publications (3)

Publication Number Publication Date
DK447188D0 true DK447188D0 (da) 1988-08-10
DK447188A DK447188A (da) 1989-02-12
DK172756B1 DK172756B1 (da) 1999-06-28

Family

ID=26771116

Family Applications (1)

Application Number Title Priority Date Filing Date
DK198804471A DK172756B1 (da) 1987-08-11 1988-08-10 Fremstilling af mikrokrystallinsk boehmit

Country Status (13)

Country Link
US (1) US4797139A (da)
EP (1) EP0304721B1 (da)
JP (1) JPH0761861B2 (da)
KR (1) KR960002622B1 (da)
AU (1) AU595463B2 (da)
BR (1) BR8804056A (da)
CA (1) CA1302681C (da)
DE (1) DE3879584T2 (da)
DK (1) DK172756B1 (da)
IN (1) IN170641B (da)
MX (1) MX164999B (da)
NO (1) NO176513C (da)
NZ (1) NZ225586A (da)

Families Citing this family (104)

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US5219806A (en) * 1990-07-16 1993-06-15 Minnesota Mining And Manufacturing Company Alpha phase seeding of transition alumina using chromium oxide-based nucleating agents
US5139978A (en) * 1990-07-16 1992-08-18 Minnesota Mining And Manufacturing Company Impregnation method for transformation of transition alumina to a alpha alumina
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US5641469A (en) * 1991-05-28 1997-06-24 Norton Company Production of alpha alumina
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WO1995014638A1 (en) * 1993-11-25 1995-06-01 Sumitomo Chemical Company, Limited PROCESS FOR PRODUCING α-ALUMINA POWDER
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JPS6469511A (en) 1989-03-15
EP0304721A1 (en) 1989-03-01
DE3879584T2 (de) 1993-09-23
DK172756B1 (da) 1999-06-28
NO176513B (no) 1995-01-09
DK447188A (da) 1989-02-12
IN170641B (da) 1992-04-25
BR8804056A (pt) 1989-05-02
MX164999B (es) 1992-10-13
AU595463B2 (en) 1990-03-29
JPH0761861B2 (ja) 1995-07-05
CA1302681C (en) 1992-06-09
DE3879584D1 (de) 1993-04-29
KR890003623A (ko) 1989-04-15
AU2045288A (en) 1989-02-16
NZ225586A (en) 1991-07-26
NO883535L (no) 1989-02-13
NO883535D0 (no) 1988-08-09
US4797139A (en) 1989-01-10
EP0304721B1 (en) 1993-03-24
NO176513C (no) 1995-04-19
KR960002622B1 (ko) 1996-02-24

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