IL110090A - Process for making a-alumina powder - Google Patents

Process for making a-alumina powder

Info

Publication number
IL110090A
IL110090A IL110090A IL11009094A IL110090A IL 110090 A IL110090 A IL 110090A IL 110090 A IL110090 A IL 110090A IL 11009094 A IL11009094 A IL 11009094A IL 110090 A IL110090 A IL 110090A
Authority
IL
Israel
Prior art keywords
alumina
gas atmosphere
gas
volume
halogen
Prior art date
Application number
IL110090A
Other languages
English (en)
Hebrew (he)
Other versions
IL110090A0 (en
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co filed Critical Sumitomo Chemical Co
Publication of IL110090A0 publication Critical patent/IL110090A0/xx
Publication of IL110090A publication Critical patent/IL110090A/en

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
    • 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
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/40—Particle morphology extending in three dimensions prism-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/41—Particle morphology extending in three dimensions octahedron-like
    • 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
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • 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)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (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)
IL110090A 1993-06-30 1994-06-22 Process for making a-alumina powder IL110090A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP18891193 1993-06-30
JP18891393 1993-06-30
JP18891593 1993-06-30
JP31413093 1993-11-19

Publications (2)

Publication Number Publication Date
IL110090A0 IL110090A0 (en) 1994-10-07
IL110090A true IL110090A (en) 1998-01-04

Family

ID=27475413

Family Applications (1)

Application Number Title Priority Date Filing Date
IL110090A IL110090A (en) 1993-06-30 1994-06-22 Process for making a-alumina powder

Country Status (10)

Country Link
US (1) US5538709A (fr)
EP (1) EP0631986B1 (fr)
JP (1) JP3744010B2 (fr)
KR (1) KR950000616A (fr)
CN (1) CN1100066A (fr)
AU (1) AU679059B2 (fr)
CA (1) CA2127070A1 (fr)
DE (1) DE69405485T2 (fr)
IL (1) IL110090A (fr)
RU (1) RU2126364C1 (fr)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9306463A (pt) * 1992-06-02 1998-06-30 Sumitomo Chemical Co Alfa alumina
IL109236A (en) * 1993-04-13 1998-01-04 Sumitomo Chemical Co A-alumina powder and its production
DE69432451T2 (de) * 1993-11-25 2004-03-11 Sumitomo Chemical Co., Ltd. Verfahren zur Herstellung von Alpha-Aluminiumoxidpulver
JP3713758B2 (ja) * 1995-07-31 2005-11-09 住友化学株式会社 鉄含有複合酸化物粉末の製造方法
FR2755435A1 (fr) * 1996-11-04 1998-05-07 Pechiney Aluminium Fabrication d'alumine calcinee a taille de cristallite reglee a la demande avec une faible dispersion
CN1072606C (zh) * 1996-11-04 2001-10-10 化学工业部天津化工研究院 一种异形γ-A12O3载体的制备方法
TW504497B (en) 2000-05-23 2002-10-01 Sumitomo Chemical Co Alpha-alumina powder and heat-conductive sheet containing the same
JP2002068739A (ja) * 2000-08-30 2002-03-08 Sumitomo Chem Co Ltd 研磨材用α−アルミナ粉末およびその製造方法
CN1838991A (zh) * 2003-08-22 2006-09-27 联合碳化化学及塑料技术公司 改进的氧化铝载体和用于制造烯化氧的银基催化剂
CN1838990A (zh) * 2003-08-22 2006-09-27 联合碳化化学及塑料技术公司 改性氧化铝载体和用于制造烯化氧的银基催化剂
US20070111886A1 (en) 2003-10-16 2007-05-17 Serafin Juliana G Catalysts having enhanced stability, efficiency and/or activity for alkylene oxide production
RU2007101737A (ru) * 2004-06-18 2008-07-27 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) Способ получения оксида олефина, 1,2-диола, 1,2-диолового простого эфира или алканоламина
RU2007101728A (ru) 2004-06-18 2008-07-27 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) Способ получения оксида олефина, 1,2-диола, 1,2-диолового эфира или алканоламина
RU2007111952A (ru) * 2004-09-01 2008-10-10 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) Способ эпоксидирования олефинов, катализатор для применения в данном способе, носитель для использования при получении катализатора и способ получения носителя
US8536083B2 (en) 2004-09-01 2013-09-17 Shell Oil Company Olefin epoxidation process, a catalyst for use in the process, a carrier for use in preparing the catalyst, and a process for preparing the carrier
CA2598523C (fr) * 2005-02-21 2015-11-24 Shell Internationale Research Maatschappij B.V. Procede d'epoxydation d'olefine, catalyseur utilisable dans le procede, porteur utilisable dans la fabrication du catalyseur et procede de fabrication du porteur
AU2005237179B2 (en) * 2005-11-25 2011-03-17 Outotec Oyj Process and plant for producing metal oxide from metal compounds
EP2046696B1 (fr) 2006-07-21 2011-05-11 Dow Global Technologies LLC Filtre à particules diesel amélioré
US20100056816A1 (en) * 2006-11-01 2010-03-04 Wallin Sten A Shaped porous bodies of alpha-alumina and methods for the preparation thereof
JP5211467B2 (ja) * 2006-11-22 2013-06-12 日本軽金属株式会社 多面体形状α−アルミナの製造方法
CZ304274B6 (cs) * 2008-10-02 2014-02-12 Výzkumný ústav anorganické chemie, a.s. Způsob výroby alfa-oxidu hlinitého pro progresivní keramické materiály
JP4774445B2 (ja) * 2009-03-16 2011-09-14 日本碍子株式会社 アルミニウムチタネートセラミックスの製造方法
FR2956111B1 (fr) * 2010-02-11 2012-04-20 Baikowski Alumine alpha, utilisation, procede de synthese et dispositif associes
WO2014051091A1 (fr) * 2012-09-28 2014-04-03 Dic株式会社 MICROPARTICULES D'ALUMINE α ET LEUR PROCÉDÉ DE PRODUCTION
CN102910659B (zh) * 2012-10-29 2014-07-30 上海飞凯光电材料股份有限公司 一种高纯氧化铝的制备方法及其应用
TWI663143B (zh) * 2014-11-28 2019-06-21 日商日本碍子股份有限公司 板狀氧化鋁粉末的製法及板狀氧化鋁粉末
FR3038623B1 (fr) * 2015-07-10 2017-06-30 Fives Procede permettant de retirer les oxydes presents a la surface des nodules d'une poudre metallique avant l'utilisation de celle-ci dans un procede industriel
KR102070215B1 (ko) 2015-09-16 2020-01-29 다이니치 세이카 고교 가부시키가이샤 알루미나계 열 전도성 산화물 및 그의 제조 방법
CN107074574B (zh) 2015-09-30 2020-09-22 日本碍子株式会社 板状氧化铝粉末的制法
JP6209695B1 (ja) * 2017-03-02 2017-10-04 大日精化工業株式会社 アルミナ系熱伝導性酸化物及びその製造方法
US11220437B2 (en) * 2018-12-24 2022-01-11 Ecometales Limited Procedure for obtaining scorodite with a high arsenic content from acidic solutions with high content of sulfuric acid
CN112708928B (zh) * 2019-10-25 2021-10-08 中国石油化工股份有限公司 一种氧化铝晶粒及其制备方法
CN112978772B (zh) * 2019-12-02 2023-01-10 中国石油化工股份有限公司 一种多晶γ-氧化铝八面体颗粒及其制备方法
CN112978771B (zh) * 2019-12-02 2023-01-10 中国石油化工股份有限公司 一种高比表面γ-氧化铝八面体颗粒及其制备方法
CN112978776B (zh) * 2019-12-02 2023-01-10 中国石油化工股份有限公司 一种γ-氧化铝八面体颗粒及其制备方法
EP4129911A4 (fr) 2020-03-31 2023-10-04 Denka Company Limited Poudre d'alumine, composition de résine et composant de dissipation de chaleur
JPWO2021200491A1 (fr) 2020-03-31 2021-10-07

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175883A (en) * 1961-06-05 1965-03-30 Aluminium Lab Ltd Process for reducing the soda content of alumina
US3262754A (en) * 1964-12-07 1966-07-26 Aluminium Lab Ltd Method of making low soda alumina of small crystal size
AT266780B (de) * 1967-05-19 1968-11-25 Giulini Gmbh Geb Verfahren zur Herstellung von natriumoxydarmem α-Aluminiumoxyd
DE2850064B1 (de) * 1978-11-18 1980-05-08 Giulini Chemie Hexagonale tafelfoermige alpha-Aluminiumoxid-Einkristalle und Verfahren zu ihrer Herstellung
HU185474B (en) * 1981-11-10 1985-02-28 Almasfuezitoei Timfoeldgyar Process for preparing alpha-aluminium oxyde poor in alkali for ceramic purposes
ATE26819T1 (de) * 1982-08-24 1987-05-15 Alusuisse Verfahren zur herstellung von kristalliner tonerde.
US4847064A (en) * 1987-12-23 1989-07-11 Aluminum Company Of America Economical process for alpha alumina production
US5302368A (en) * 1987-01-29 1994-04-12 Sumitomo Chemical Company, Limited Process for preparation of alumina
DE3870637D1 (de) * 1987-01-29 1992-06-11 Sumitomo Chemical Co Verfahren zur herstellung von aluminiumoxid.
US4822592A (en) * 1987-02-05 1989-04-18 Aluminum Company Of America Producing alpha alumina particles with pressurized acidic steam
EP0281265B1 (fr) * 1987-02-26 1992-08-05 Sumitomo Chemical Company, Limited Procédé de préparation d'alumine facilement mono-dispersable
US5149520A (en) * 1987-12-23 1992-09-22 Aluminum Company Of America Small sized alpha alumina particles and platelets

Also Published As

Publication number Publication date
IL110090A0 (en) 1994-10-07
AU6606194A (en) 1995-01-12
DE69405485D1 (de) 1997-10-16
US5538709A (en) 1996-07-23
CA2127070A1 (fr) 1994-12-31
JPH07187663A (ja) 1995-07-25
AU679059B2 (en) 1997-06-19
JP3744010B2 (ja) 2006-02-08
KR950000616A (ko) 1995-01-03
RU94022745A (ru) 1996-04-27
DE69405485T2 (de) 1998-04-16
EP0631986B1 (fr) 1997-09-10
RU2126364C1 (ru) 1999-02-20
EP0631986A1 (fr) 1995-01-04
CN1100066A (zh) 1995-03-15

Similar Documents

Publication Publication Date Title
US5538709A (en) Process for producing alpha-alumina powder
US6165437A (en) α-alumina
US6524549B1 (en) Method for producing α-alumina powder
US6159441A (en) α-alumina powder and process for producing the same
JP3440498B2 (ja) α−アルミナ
US6106800A (en) Method for producing alpha-alumina powder
US6521203B1 (en) Process for producing α-alumina
JPH06191835A (ja) α−アルミナの製造方法
JPH06191833A (ja) α−アルミナ
PL175195B1 (pl) alfa-Tlenek glinowy
PL174893B1 (pl) Sposób wytwarzania alfa-tlenku glinowego

Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees