ES2175379T3 - Fabricacion de alumina calcinada con tamaño de cristalita ajustado a peticion con una pequeña dispersion. - Google Patents

Fabricacion de alumina calcinada con tamaño de cristalita ajustado a peticion con una pequeña dispersion.

Info

Publication number
ES2175379T3
ES2175379T3 ES97913238T ES97913238T ES2175379T3 ES 2175379 T3 ES2175379 T3 ES 2175379T3 ES 97913238 T ES97913238 T ES 97913238T ES 97913238 T ES97913238 T ES 97913238T ES 2175379 T3 ES2175379 T3 ES 2175379T3
Authority
ES
Spain
Prior art keywords
aluminum
calcinated
alumina
request
manufacture
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
ES97913238T
Other languages
English (en)
Inventor
Jean Deville
Jean-Michel Lamerant
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney 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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Application granted granted Critical
Publication of ES2175379T3 publication Critical patent/ES2175379T3/es
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
    • 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
    • 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
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C01P2004/52—Particles with a specific particle size distribution highly monodisperse size distribution
    • 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)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCEDIMIENTO DE ALUMINA PARA CERAMICA POR CALCINACION DE TRIHIDRATO DE ALUMINA EN PRESENCIA DE UN AGENTE DE MINERALIZACION TAL COMO UN COMPUESTO HALOGENADO Y/O COMPUESTO DE BORO, ESTANDO DICHA ALUMINA CONSTITUIDA DE AGLOMERADOS FRIABLES DE PARTICULAS ELEMENTALES O PEQUEÑOS CRISTALES DE ALUMINA ALFA CUYA DIMENSION MEDIA SE AJUSTA A L DEMANDA CON UNA DISTRIBUCION UNIMODAL CONFINADA DE LAS DIMENSIONES DE PEQUEÑOS CRISTALES CARACTERIZADO PORQUE LA CALCINACION EN HORNO INDUSTRIAL, BAJO ATMOSFERA OXIDANTE RENOVADA, DE LA CARGA DE TRIHIDRATO DE ALUMINA A UNA TEMPERATURA COMPRENDIDA ENTRO 800 C Y 1300 C DURANTE UNA DURACION DE 1/2 HORA A 4 HORAS SE EFECTUA EN PRESENCIA SIMULTANEAMENTE DE UN COMPUESTO HALOGENADO QUE HACE LAS VECES DE AGENTE DE MINERALIZACION Y DE UN MODIFICADOR DE RECRISTALIZACION DE LA ALUMINA, CON BASE DE SILICE, UNIFORME E INTIMAMENTE REPARTIDO EN LA CARGA DE TRIHIDRATO DE ALUMINA.
ES97913238T 1996-11-04 1997-11-03 Fabricacion de alumina calcinada con tamaño de cristalita ajustado a peticion con una pequeña dispersion. Expired - Lifetime ES2175379T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9613622A FR2755435A1 (fr) 1996-11-04 1996-11-04 Fabrication d'alumine calcinee a taille de cristallite reglee a la demande avec une faible dispersion

Publications (1)

Publication Number Publication Date
ES2175379T3 true ES2175379T3 (es) 2002-11-16

Family

ID=9497439

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97913238T Expired - Lifetime ES2175379T3 (es) 1996-11-04 1997-11-03 Fabricacion de alumina calcinada con tamaño de cristalita ajustado a peticion con una pequeña dispersion.

Country Status (10)

Country Link
US (1) US5916536A (es)
EP (1) EP0950021B1 (es)
JP (1) JP2001503368A (es)
AU (1) AU729478B2 (es)
CA (1) CA2270582C (es)
DE (1) DE69713804T2 (es)
ES (1) ES2175379T3 (es)
FR (1) FR2755435A1 (es)
HU (1) HU228472B1 (es)
WO (1) WO1998019967A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19602525A1 (de) * 1996-01-25 1997-08-07 Starck H C Gmbh Co Kg Sphärische Keramikformkörper, Verfahren zu ihrer Herstellung sowie deren Verwendung
DE60100334T2 (de) * 2000-01-10 2004-04-29 Albemarle Corp. Prozess zur herstellung von aluminiumhydroxid mit verbesserter wärmestabilität
US6410470B1 (en) * 2000-04-24 2002-06-25 Saint-Gobain Industrial Ceramics, Inc. Thermal spray powder process
DE10113294A1 (de) * 2001-03-16 2002-09-19 Stockhausen Chem Fab Gmbh Bildung von Aluminiumoxidhydrat-haltigen Kristallen aus kaustischen Mutterlaugen
US6887811B2 (en) * 2001-05-30 2005-05-03 Showa Denko K.K. Spherical alumina particles and production process thereof
FR2831156B1 (fr) * 2001-10-18 2004-02-20 Pechiney Aluminium Alumine calcinee broyee destinee a entrer dans la composition d'un precurseur pour materiau refractaire, et procede d'obtention de ladite alumine
US20100056816A1 (en) * 2006-11-01 2010-03-04 Wallin Sten A Shaped porous bodies of alpha-alumina and methods for the preparation thereof
JP6876152B2 (ja) 2017-02-15 2021-05-26 サン−ゴバン セラミックス アンド プラスティクス，インコーポレイティドＳａｉｎｔ−Ｇｏｂａｉｎ Ｃｅｒａｍｉｃｓ Ａｎｄ Ｐｌａｓｔｉｃｓ， Ｉｎｃ． 自動車仕上げ組成物に使用されるアルミナ研磨粒子
CN112441821B (zh) * 2020-11-06 2023-02-28 南充三环电子有限公司 一种陶瓷封装基座及其制备方法
CN113233488B (zh) * 2021-05-08 2023-03-21 中铝山东有限公司 一种原晶粒度分布窄的α-氧化铝的制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE521124C (de) * 1927-07-23 1931-03-18 Chauny & Cirey Herstellung kuenstlicher Schleifmittel
US3859427A (en) * 1969-11-10 1975-01-07 Aluminum Co Of America Production of beta alumina
US3961036A (en) * 1974-01-04 1976-06-01 Exxon Research And Engineering Company Alumina synthesis
DE2850064B1 (de) * 1978-11-18 1980-05-08 Giulini Chemie Hexagonale tafelfoermige alpha-Aluminiumoxid-Einkristalle und Verfahren zu ihrer Herstellung
ATE26819T1 (de) * 1982-08-24 1987-05-15 Alusuisse Verfahren zur herstellung von kristalliner tonerde.
DE3873377T2 (de) * 1987-02-26 1992-12-10 Sumitomo Chemical Co Verfahren zur darstellung von leicht monodispergierbarem aluminiumoxid.
JPH05238726A (ja) * 1992-02-28 1993-09-17 Mitsubishi Materials Corp 高結晶性微細α−アルミナ粉末の製造方法
JP3744010B2 (ja) * 1993-06-30 2006-02-08 住友化学株式会社 α−アルミナ粉末の製造方法
KR960700194A (ko) * 1993-11-25 1996-01-19 고사이 아키오 α-알루미나 분말의 제조방법(Process for producing α-alumina powder)

Also Published As

Publication number Publication date
AU729478B2 (en) 2001-02-01
AU5056798A (en) 1998-05-29
HUP9904542A2 (hu) 2000-05-28
FR2755435A1 (fr) 1998-05-07
JP2001503368A (ja) 2001-03-13
EP0950021B1 (fr) 2002-07-03
EP0950021A1 (fr) 1999-10-20
HUP9904542A3 (en) 2000-12-28
DE69713804D1 (de) 2002-08-08
CA2270582A1 (fr) 1998-05-14
HU228472B1 (en) 2013-03-28
WO1998019967A1 (fr) 1998-05-14
DE69713804T2 (de) 2003-01-30
CA2270582C (fr) 2007-10-02
US5916536A (en) 1999-06-29

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