HUT66758A - PROCESS FOR PRODUCING POLIDISPERS ALUMINIUME-OXIDES, WHICH CONTAINS SHALLER THAN 1 µM ONE-CRYSTALSIZE GRAINS - Google Patents

PROCESS FOR PRODUCING POLIDISPERS ALUMINIUME-OXIDES, WHICH CONTAINS SHALLER THAN 1 µM ONE-CRYSTALSIZE GRAINS

Info

Publication number
HUT66758A
HUT66758A HU88504A HU50488A HUT66758A HU T66758 A HUT66758 A HU T66758A HU 88504 A HU88504 A HU 88504A HU 50488 A HU50488 A HU 50488A HU T66758 A HUT66758 A HU T66758A
Authority
HU
Hungary
Prior art keywords
polidispers
crystalsize
aluminiume
shaller
grains
Prior art date
Application number
HU88504A
Other languages
Hungarian (hu)
Other versions
HU210595B (en
Inventor
Gyoergy Kaptay
Laszlo Lengyel
Imre Toth
Sandor Pirik
Miklos Schlegel
Sandor Nemeth
Laszlo Revesz
Jozsef Matyasi
Lajos Csiga
Benjaminne Dr Toth
Toth Jozsef T
Istvan Oeri
Original Assignee
Almasfuezitoei Timfoeldgyar
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 Almasfuezitoei Timfoeldgyar filed Critical Almasfuezitoei Timfoeldgyar
Priority to HU88504A priority Critical patent/HU210595B/en
Priority to DE3902323A priority patent/DE3902323C2/en
Priority to FR898901341A priority patent/FR2626587B1/en
Publication of HUT66758A publication Critical patent/HUT66758A/en
Publication of HU210595B publication Critical patent/HU210595B/en

Links

Classifications

    • 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
    • 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
    • C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
    • C01F7/442—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination in presence of a calcination additive
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/20—Aluminium oxides
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B7/00—Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
HU88504A 1988-02-03 1988-02-03 Process for producing aluminiume-oxides using to the ceramic which contains smaller than 1 micrometer one-crystalsize grains, too HU210595B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
HU88504A HU210595B (en) 1988-02-03 1988-02-03 Process for producing aluminiume-oxides using to the ceramic which contains smaller than 1 micrometer one-crystalsize grains, too
DE3902323A DE3902323C2 (en) 1988-02-03 1989-01-26 Process for the production of aluminum oxide with a single crystal size below 1 ¶ / ¶um
FR898901341A FR2626587B1 (en) 1988-02-03 1989-02-02 PROCESS FOR THE PREPARATION OF SINGLE CRYSTAL ALUMINA OF A SIZE LESS THAN 1 (MY) M

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU88504A HU210595B (en) 1988-02-03 1988-02-03 Process for producing aluminiume-oxides using to the ceramic which contains smaller than 1 micrometer one-crystalsize grains, too

Publications (2)

Publication Number Publication Date
HUT66758A true HUT66758A (en) 1994-12-28
HU210595B HU210595B (en) 1995-05-29

Family

ID=10949888

Family Applications (1)

Application Number Title Priority Date Filing Date
HU88504A HU210595B (en) 1988-02-03 1988-02-03 Process for producing aluminiume-oxides using to the ceramic which contains smaller than 1 micrometer one-crystalsize grains, too

Country Status (3)

Country Link
DE (1) DE3902323C2 (en)
FR (1) FR2626587B1 (en)
HU (1) HU210595B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE522519T1 (en) * 1991-07-09 1993-06-09 Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry METHOD FOR THE PRODUCTION OF FINE PLATE-SHAPED PARTICLES AND PLASTICS BASED ON ALUMINUM OXIDE.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450232A1 (en) * 1979-02-28 1980-09-26 Pechiney Aluminium PROCESS FOR THE CONVERSION OF HYDRARGILITY TO BOEHMITE
HU185474B (en) * 1981-11-10 1985-02-28 Almasfuezitoei Timfoeldgyar Process for preparing alpha-aluminium oxyde poor in alkali for ceramic purposes

Also Published As

Publication number Publication date
FR2626587B1 (en) 1994-06-17
FR2626587A1 (en) 1989-08-04
HU210595B (en) 1995-05-29
DE3902323A1 (en) 1989-08-17
DE3902323C2 (en) 1995-07-20

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Legal Events

Date Code Title Description
HMM4 Cancellation of final prot. due to non-payment of fee