DE3879584D1 - Herstellung von mikrokristallinem boehmit und keramische koerper. - Google Patents

Herstellung von mikrokristallinem boehmit und keramische koerper.

Info

Publication number
DE3879584D1
DE3879584D1 DE8888112945T DE3879584T DE3879584D1 DE 3879584 D1 DE3879584 D1 DE 3879584D1 DE 8888112945 T DE8888112945 T DE 8888112945T DE 3879584 T DE3879584 T DE 3879584T DE 3879584 D1 DE3879584 D1 DE 3879584D1
Authority
DE
Germany
Prior art keywords
boehmit
microcrystalline
production
ceramic body
ceramic
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 - Lifetime
Application number
DE8888112945T
Other languages
English (en)
Other versions
DE3879584T2 (de
Inventor
Ralph Bauer
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.)
Saint Gobain Abrasives Inc
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 DE3879584D1 publication Critical patent/DE3879584D1/de
Application granted granted Critical
Publication of DE3879584T2 publication Critical patent/DE3879584T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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)
  • Nanotechnology (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (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)
DE8888112945T 1987-08-11 1988-08-09 Herstellung von mikrokristallinem boehmit und keramische koerper. Expired - Lifetime DE3879584T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8454987A 1987-08-11 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

Publications (2)

Publication Number Publication Date
DE3879584D1 true DE3879584D1 (de) 1993-04-29
DE3879584T2 DE3879584T2 (de) 1993-09-23

Family

ID=26771116

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888112945T Expired - Lifetime DE3879584T2 (de) 1987-08-11 1988-08-09 Herstellung von mikrokristallinem boehmit und keramische koerper.

Country Status (13)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8119096B2 (en) 2006-03-15 2012-02-21 Nabaltec Ag Method for the production of a finely crystalline boehmite and application of said boehmite as flame retardant in plastics

Families Citing this family (102)

* Cited by examiner, † Cited by third party
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DE58903831D1 (de) * 1989-04-17 1993-04-22 Starck H C Gmbh Co Kg Verfahren zur herstellung von alpha-a1203-sinterkoerpern.
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
US5178849A (en) * 1991-03-22 1993-01-12 Norton Company Process for manufacturing alpha alumina from dispersible boehmite
US5569325A (en) * 1991-04-22 1996-10-29 Condea Vista Company Process for growing crystals
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EP3878816A1 (de) 2020-03-13 2021-09-15 Almatis GmbH Verfahren zur herstellung von hochreinem aluminiummonohydrat und alpha-aluminiumoxid
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NO176513C (no) 1995-04-19
DK172756B1 (da) 1999-06-28
NO883535D0 (no) 1988-08-09
NZ225586A (en) 1991-07-26
DK447188A (da) 1989-02-12
US4797139A (en) 1989-01-10
AU2045288A (en) 1989-02-16
DK447188D0 (da) 1988-08-10
NO883535L (no) 1989-02-13
EP0304721A1 (de) 1989-03-01
EP0304721B1 (de) 1993-03-24
BR8804056A (pt) 1989-05-02
KR960002622B1 (ko) 1996-02-24
IN170641B (de) 1992-04-25
DE3879584T2 (de) 1993-09-23
JPS6469511A (en) 1989-03-15
JPH0761861B2 (ja) 1995-07-05
KR890003623A (ko) 1989-04-15
CA1302681C (en) 1992-06-09
MX164999B (es) 1992-10-13
AU595463B2 (en) 1990-03-29
NO176513B (no) 1995-01-09

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