FR2257540A1 - Fine alpha-alumina particle prepn - by heating beta-alumina aluminates in a gas stream - Google Patents

Fine alpha-alumina particle prepn - by heating beta-alumina aluminates in a gas stream

Info

Publication number
FR2257540A1
FR2257540A1 FR7401416A FR7401416A FR2257540A1 FR 2257540 A1 FR2257540 A1 FR 2257540A1 FR 7401416 A FR7401416 A FR 7401416A FR 7401416 A FR7401416 A FR 7401416A FR 2257540 A1 FR2257540 A1 FR 2257540A1
Authority
FR
France
Prior art keywords
alumina
prepn
aluminates
gas stream
alpha
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.)
Granted
Application number
FR7401416A
Other languages
English (en)
French (fr)
Other versions
FR2257540B1 (enExample
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Priority to FR7401416A priority Critical patent/FR2257540A1/fr
Publication of FR2257540A1 publication Critical patent/FR2257540A1/fr
Application granted granted Critical
Publication of FR2257540B1 publication Critical patent/FR2257540B1/fr
Granted 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
    • 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
    • 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
    • C01F7/30—Preparation of aluminium oxide or hydroxide by thermal decomposition or by hydrolysis or oxidation of aluminium compounds
    • 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
    • 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)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Nanotechnology (AREA)
  • Composite Materials (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Structural Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR7401416A 1974-01-16 1974-01-16 Fine alpha-alumina particle prepn - by heating beta-alumina aluminates in a gas stream Granted FR2257540A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7401416A FR2257540A1 (en) 1974-01-16 1974-01-16 Fine alpha-alumina particle prepn - by heating beta-alumina aluminates in a gas stream

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7401416A FR2257540A1 (en) 1974-01-16 1974-01-16 Fine alpha-alumina particle prepn - by heating beta-alumina aluminates in a gas stream

Publications (2)

Publication Number Publication Date
FR2257540A1 true FR2257540A1 (en) 1975-08-08
FR2257540B1 FR2257540B1 (enExample) 1978-09-29

Family

ID=9133538

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7401416A Granted FR2257540A1 (en) 1974-01-16 1974-01-16 Fine alpha-alumina particle prepn - by heating beta-alumina aluminates in a gas stream

Country Status (1)

Country Link
FR (1) FR2257540A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG99292A1 (en) * 1999-11-03 2003-10-27 Univ Singapore A method for producing oxide compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG99292A1 (en) * 1999-11-03 2003-10-27 Univ Singapore A method for producing oxide compounds

Also Published As

Publication number Publication date
FR2257540B1 (enExample) 1978-09-29

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Legal Events

Date Code Title Description
ST Notification of lapse