DK447188A - Fremstilling af mikrokrystallinsk boehmit og keramiske legemer - Google Patents

Fremstilling af mikrokrystallinsk boehmit og keramiske legemer

Info

Publication number
DK447188A
DK447188A DK447188A DK447188A DK447188A DK 447188 A DK447188 A DK 447188A DK 447188 A DK447188 A DK 447188A DK 447188 A DK447188 A DK 447188A DK 447188 A DK447188 A DK 447188A
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
DK447188D0 (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

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/02Aluminium oxide; Aluminium hydroxide; Aluminates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04Alumina
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/008Abrasive bodies without external bonding agent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical 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
    • B24D3/04Physical 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
    • B24D3/14Physical 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
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/02Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/44Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
    • C01F7/447Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes
    • C01F7/448Dehydration 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10Shaped 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
    • C04B35/111Fine ceramics
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10Shaped 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
    • C04B35/111Fine ceramics
    • C04B35/1115Minute sintered entities, e.g. sintered abrasive grains or shaped particles such as platelets
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/64Nanometer 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)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Nanotechnology (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (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
US13358487 1987-12-16
US07/133,584 US4797139A (en) 1987-08-11 1987-12-16 Boehmite produced by a seeded hydyothermal process and ceramic bodies produced therefrom

Publications (3)

Publication Number Publication Date
DK447188D0 DK447188D0 (da) 1988-08-10
DK447188A true 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)

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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
US5178849A (en) * 1991-03-22 1993-01-12 Norton Company Process for manufacturing alpha alumina from dispersible boehmite
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US5641469A (en) * 1991-05-28 1997-06-24 Norton Company Production of alpha alumina
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DE3879584D1 (de) 1993-04-29
DK172756B1 (da) 1999-06-28
NZ225586A (en) 1991-07-26
MX164999B (es) 1992-10-13
NO883535D0 (no) 1988-08-09
EP0304721B1 (en) 1993-03-24
AU595463B2 (en) 1990-03-29
CA1302681C (en) 1992-06-09
KR960002622B1 (ko) 1996-02-24
DK447188D0 (da) 1988-08-10
NO176513C (no) 1995-04-19
IN170641B (da) 1992-04-25
AU2045288A (en) 1989-02-16
US4797139A (en) 1989-01-10
NO883535L (no) 1989-02-13
DE3879584T2 (de) 1993-09-23
EP0304721A1 (en) 1989-03-01
NO176513B (no) 1995-01-09
JPH0761861B2 (ja) 1995-07-05
KR890003623A (ko) 1989-04-15
JPS6469511A (en) 1989-03-15
BR8804056A (pt) 1989-05-02

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