CS244120B2 - Method of alpha aluminium oxide production with low content of alkali for ceramic purposes - Google Patents

Method of alpha aluminium oxide production with low content of alkali for ceramic purposes Download PDF

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Publication number
CS244120B2
CS244120B2 CS827974A CS797482A CS244120B2 CS 244120 B2 CS244120 B2 CS 244120B2 CS 827974 A CS827974 A CS 827974A CS 797482 A CS797482 A CS 797482A CS 244120 B2 CS244120 B2 CS 244120B2
Authority
CS
Czechoslovakia
Prior art keywords
weight
alkali
alumina
amount
aluminum hydroxide
Prior art date
Application number
CS827974A
Other languages
Czech (cs)
English (en)
Other versions
CS797482A2 (en
Inventor
Jozsef Matyasi
Gyoergy Kaptay
Laszlo Zsembery
Jozsef Toth
Bela Kockeny
Hoemoestrei Maria Toth
Imre Penzes
Original Assignee
Magyar Aluminium
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 Magyar Aluminium filed Critical Magyar Aluminium
Publication of CS797482A2 publication Critical patent/CS797482A2/cs
Publication of CS244120B2 publication Critical patent/CS244120B2/cs

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

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)
  • Compositions Of Oxide Ceramics (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
CS827974A 1981-11-10 1982-11-09 Method of alpha aluminium oxide production with low content of alkali for ceramic purposes CS244120B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU813358A HU185474B (en) 1981-11-10 1981-11-10 Process for preparing alpha-aluminium oxyde poor in alkali for ceramic purposes

Publications (2)

Publication Number Publication Date
CS797482A2 CS797482A2 (en) 1985-08-15
CS244120B2 true CS244120B2 (en) 1986-07-17

Family

ID=10963719

Family Applications (1)

Application Number Title Priority Date Filing Date
CS827974A CS244120B2 (en) 1981-11-10 1982-11-09 Method of alpha aluminium oxide production with low content of alkali for ceramic purposes

Country Status (8)

Country Link
US (1) US4477427A (enExample)
CS (1) CS244120B2 (enExample)
DD (1) DD205675A5 (enExample)
DE (1) DE3241582A1 (enExample)
FR (1) FR2535703B1 (enExample)
GB (1) GB2108949B (enExample)
HU (1) HU185474B (enExample)
IT (1) IT1191068B (enExample)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU185474B (en) * 1981-11-10 1985-02-28 Almasfuezitoei Timfoeldgyar Process for preparing alpha-aluminium oxyde poor in alkali for ceramic purposes
US4623364A (en) * 1984-03-23 1986-11-18 Norton Company Abrasive material and method for preparing the same
US5383945A (en) * 1984-01-19 1995-01-24 Norton Company Abrasive material and method
FI79830C (fi) * 1985-07-15 1990-03-12 Norddeutsche Schleifmittel Ind Foerfarande foer framstaellning av keramiskt polykristallint slipmaterial.
US5340781A (en) * 1986-07-14 1994-08-23 Showa Denko Kabushiki Kaisha Spherical corundum particles, process for preparation thereof and rubber or plastic composition having high thermal conductivity and having spherical corundum paticles incorporated therein
DE3629100A1 (de) * 1986-08-27 1988-03-03 Bosch Gmbh Robert Elektrochemisch stabile keramik aus aluminiumoxid
US5302368A (en) * 1987-01-29 1994-04-12 Sumitomo Chemical Company, Limited Process for preparation of alumina
US4822592A (en) * 1987-02-05 1989-04-18 Aluminum Company Of America Producing alpha alumina particles with pressurized acidic steam
ES2004759A6 (es) * 1987-07-17 1989-02-01 Espanola Alumina Sa Metodo de obtencion de alumina especial a partir del polvo producido en la calcinacion de alumina metalurgica
HU210595B (en) * 1988-02-03 1995-05-29 Almasfuezitoei Timfoeldgyar Process for producing aluminiume-oxides using to the ceramic which contains smaller than 1 micrometer one-crystalsize grains, too
US5296085A (en) * 1989-09-21 1994-03-22 Atochem Macrocrystalline α-alumina hexagonal platelets
AU639326B2 (en) * 1990-05-23 1993-07-22 Atochem Ceramic preforms comprising monocrystalline hexagonal platelets of alpha-alumina, their production and applications thereof
CN1068092A (zh) * 1991-06-21 1993-01-20 瑞士隆萨股份公司 生产以α-氧化铝为基质的烧结材料特别是磨料的方法
IL109236A (en) * 1993-04-13 1998-01-04 Sumitomo Chemical Co A-alumina powder and its production
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
US5438129A (en) * 1993-09-27 1995-08-01 Becton Dickinson And Company DNA purification by solid phase extraction using partially fluorinated aluminum hydroxide adsorbant
CA2136582A1 (en) * 1993-11-25 1995-05-26 Masahide Mohri Method for producing alpha-alumina powder
AU699077B2 (en) * 1995-02-21 1998-11-19 Sumitomo Chemical Company, Limited Alpha-alumina and method for producing the same
JPH09263440A (ja) * 1996-03-29 1997-10-07 Ngk Insulators Ltd アルミナ焼結体およびその製造方法
JP3457495B2 (ja) * 1996-03-29 2003-10-20 日本碍子株式会社 窒化アルミニウム焼結体、金属埋設品、電子機能材料および静電チャック
RU2117631C1 (ru) * 1997-07-11 1998-08-20 Российский химико-технологический университет им.Д.И.Менделеева Способ получения порошка оксида алюминия для изготовления прозрачной керамики
CN1241833C (zh) * 2000-10-20 2006-02-15 昭和电工株式会社 生产低碱氧化铝的方法及其设备
AU2002358998A1 (en) * 2001-12-27 2003-07-15 Showa Denko K.K. Particulate alumina, method for producing particulate alumina and composition containing particulate alumina
US20060189740A1 (en) * 2003-06-12 2006-08-24 Showa Denko K.K. Method for producing particulate alumina and composition containing particulate alumina
EP1658135A1 (en) * 2003-08-22 2006-05-24 Union Carbide Chemicals & Plastics Technology Corporation Modified alumina carriers and silver-based catalysts for the production of alkylene oxides
WO2005023418A1 (en) * 2003-08-22 2005-03-17 Union Carbide Chemicals & Plastics Technology Corporation Improved alumina carriers and silver-based catalysts for the production of alkylene oxides
CN101757914A (zh) * 2003-10-16 2010-06-30 陶氏技术投资有限责任公司 用于烯化氧制备的具有提高稳定性、效率和/或活性的催化剂
BRPI0512169A (pt) 2004-06-18 2008-02-12 Shell Int Research processo para a produção de óxido de olefina, 1,2- diol, 1,2-diol éter,ou alcanolamina
CA2571179C (en) * 2004-06-18 2014-06-10 Shell Internationale Research Maatschappij B.V. A process for the production of an olefin oxide, a 1,2-diol, a 1,2-diol ether, or an alkanolamine
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
MX2007002386A (es) * 2004-09-01 2007-04-23 Shell Int Research Proceso para epoxidacion de olefinas, catalizador para uso en el proceso, soporte para uso en la preparacion del catalizador, y proceso para preparar el soporte.
CA2598523C (en) * 2005-02-21 2015-11-24 Shell Internationale Research Maatschappij B.V. An olefin epoxidation process, a catalyst for use in the process, a carrier for use in making the catalyst, and a process for making the carrier
CN100348494C (zh) * 2005-08-26 2007-11-14 郑州大学 一种高分散性α－Al2O3纳米粉体的制备方法
DE102006005400A1 (de) 2006-02-18 2007-08-23 Nabaltec Ag Verfahren zur Herstellung von gereinigtem Aluminiumoxid aus alkalihaltiger Tonerde
CN114772618B (zh) * 2022-03-28 2023-07-04 中铝山东有限公司 一种研抛用类球形α氧化铝的制备方法
GB2621393B (en) 2022-08-12 2024-12-25 Thermo Fisher Scient Bremen Gmbh Methods and mass spectrometry systems for acquiring mass spectral data
GB2621395B (en) 2022-08-12 2025-02-05 Thermo Fisher Scient Bremen Gmbh Methods and mass spectrometry systems for acquiring mass spectral data
GB2621394B (en) 2022-08-12 2024-12-04 Thermo Fisher Scient Bremen Gmbh Methods and Mass Spectrometry Systems for Acquiring Mass Spectral Data
CN117125731B (zh) * 2023-08-28 2024-04-26 福建明瑞科维新材料科技有限公司 一种降低氧化铝锻烧相变温度的矿化剂及其制备方法和应用

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1950883A (en) * 1932-05-31 1934-03-13 Aluminum Co Of America Treatment of aluminum hydrate
US3092452A (en) * 1959-08-18 1963-06-04 Aluminum Co Of America Production of low-soda alumina
US3092453A (en) * 1959-08-18 1963-06-04 Aluminum Co Of America Production of low-soda alumina
GB1046582A (en) * 1964-03-04 1966-10-26 Gen Motors Ltd Improved method of producing alumina
US3262754A (en) * 1964-12-07 1966-07-26 Aluminium Lab Ltd Method of making low soda alumina of small crystal size
US4045234A (en) * 1976-08-23 1977-08-30 Kaiser Aluminum & Chemical Corporation Process for producing high density sintered alumina
DE2816194A1 (de) * 1978-04-14 1979-10-25 Giulini Chemie Sinteraktive und alkaliarme tonerde
CH654819A5 (de) * 1980-09-23 1986-03-14 Alusuisse Verfahren zur herstellung von grobkristallinem alpha-aluminiumoxid und dessen verwendung.
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
DE3241582A1 (de) 1983-06-01
IT8224155A1 (it) 1984-05-10
IT8224155A0 (it) 1982-11-10
GB2108949B (en) 1985-03-06
CS797482A2 (en) 1985-08-15
DD205675A5 (de) 1984-01-04
FR2535703B1 (fr) 1985-11-22
GB2108949A (en) 1983-05-25
US4477427A (en) 1984-10-16
DE3241582C2 (enExample) 1991-07-25
FR2535703A1 (fr) 1984-05-11
HU185474B (en) 1985-02-28
IT1191068B (it) 1988-02-24

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