IT8224155A0 - Procedimento per la preparazione di alfa-allumina povera di alcali per scopi ceramici. - Google Patents

Procedimento per la preparazione di alfa-allumina povera di alcali per scopi ceramici.

Info

Publication number
IT8224155A0
IT8224155A0 IT8224155A IT2415582A IT8224155A0 IT 8224155 A0 IT8224155 A0 IT 8224155A0 IT 8224155 A IT8224155 A IT 8224155A IT 2415582 A IT2415582 A IT 2415582A IT 8224155 A0 IT8224155 A0 IT 8224155A0
Authority
IT
Italy
Prior art keywords
alumina
alkali
procedure
preparation
low alpha
Prior art date
Application number
IT8224155A
Other languages
English (en)
Other versions
IT1191068B (it
IT8224155A1 (it
Inventor
Jozsef Matyasi
Gyorgy Kaptay
Laszlo Zsembery
Jozsef Toth
Bela Kokeny
Maria Toth Homostrei
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 IT8224155A0 publication Critical patent/IT8224155A0/it
Publication of IT8224155A1 publication Critical patent/IT8224155A1/it
Application granted granted Critical
Publication of IT1191068B publication Critical patent/IT1191068B/it

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)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
IT24155/82A 1981-11-10 1982-11-10 Procedimento per la preparazione di alfa-allumina povera di alcali per scopi ceramici IT1191068B (it)

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 (3)

Publication Number Publication Date
IT8224155A0 true IT8224155A0 (it) 1982-11-10
IT8224155A1 IT8224155A1 (it) 1984-05-10
IT1191068B IT1191068B (it) 1988-02-24

Family

ID=10963719

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24155/82A IT1191068B (it) 1981-11-10 1982-11-10 Procedimento per la preparazione di alfa-allumina povera di alcali per scopi ceramici

Country Status (8)

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

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
US5383945A (en) * 1984-01-19 1995-01-24 Norton Company Abrasive material and method
US4623364A (en) * 1984-03-23 1986-11-18 Norton Company Abrasive material and method for preparing the same
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
IL111763A (en) * 1993-11-25 1998-08-16 Sumitomo Chemical Co Method for alpha-alumina powder production
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
US6960336B2 (en) * 2000-10-20 2005-11-01 Showa Denko K.K. Method of producing low soda alumina, low soda alumina produced by the method and method of producing porcelain
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
CA2538992C (en) * 2003-08-22 2013-02-19 Union Carbide Chemicals & Plastics Technology Corporation Improved alumina carriers and silver-based catalysts for the production of alkylene oxides
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
US20070111886A1 (en) 2003-10-16 2007-05-17 Serafin Juliana G Catalysts having enhanced stability, efficiency and/or activity for alkylene oxide production
MXPA06014560A (es) * 2004-06-18 2007-03-23 Shell Int Research Proceso para la produccion de un oxido de olefina, un 1,2-diol, un 1,2-diol eter o una alcanolamina.
JP5106106B2 (ja) 2004-06-18 2012-12-26 シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー オレフィンオキシド、１，２−ジオール、１，２−ジオールエーテル、またはアルカノールアミンの製造方法
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
CA2578941C (en) * 2004-09-01 2014-07-08 Shell Internationale Research Maatschappij B.V. An 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
MX2007009904A (es) * 2005-02-21 2007-09-26 Shell Int Research Proceso de epoxidacion de olefinas, catalizador para su uso en el proceso, portador para su uso en la fabricacion del catalizador, y proceso para fabricar el portador.
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
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
GB2621393B (en) 2022-08-12 2024-12-25 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
DD205675A5 (de) 1984-01-04
DE3241582A1 (de) 1983-06-01
GB2108949A (en) 1983-05-25
IT1191068B (it) 1988-02-24
FR2535703A1 (fr) 1984-05-11
GB2108949B (en) 1985-03-06
CS797482A2 (en) 1985-08-15
FR2535703B1 (fr) 1985-11-22
CS244120B2 (en) 1986-07-17
US4477427A (en) 1984-10-16
HU185474B (en) 1985-02-28
DE3241582C2 (it) 1991-07-25
IT8224155A1 (it) 1984-05-10

Similar Documents

Publication Publication Date Title
IT8224155A0 (it) Procedimento per la preparazione di alfa-allumina povera di alcali per scopi ceramici.
IT8223705A0 (it) Procedimento per la preparazione di composti cianoeterociclici.
TR28392A (tr) Seramik bilesikler yapma metodu.
IT8522564A0 (it) Procedimento per la preparazione di idroalofluoroalcani.
IT8421622A0 (it) Procedimento per la preparazione di peptidi.
IT8622347A0 (it) Procedimento per la preparazione di polieteri alogenati.
ES519351A0 (es) Procedimiento para la preparacion de benzotriazoles.
IT8619098A0 (it) Procedimento per la preparazione di chetoni.
IT1157058B (it) Procedimento per la preparazione di acril e metaacrilamidi n.sostituite
IT8723034A0 (it) Procedimento per la preparazione di componenti ceramici.
IT8620761A0 (it) Procedimento per la preparazione di 2-bromo-alfa-ergocriptina.
IT8224818A0 (it) Procedimento per la preparazione del7-metil-3-metilen-7-otten-1-il-propionato.
IT8321066A0 (it) Procedimento per la preparazione di o-fenilendiammina.
IT8723035A0 (it) Procedimento per la preparazione di n acilaniline.
IT8220442A0 (it) Procedimento per la preparazione di p.clorofenossiacetil-piperonilpiperazina.
IT8125157A0 (it) Procedimento per la preparazione di 2-amminoetanoli.
IT8720078A0 (it) Procedimento per la preparazione di (+)-13-norfaranale.
IT8719073A0 (it) Procedimento per la preparazione di omega-isopropossifenolo.
IT1157951B (it) Procedimento per la preparazione di antibiotici betalattamici
IT8420456A0 (it) Procedimento per la preparazione di polifenileteri.
IT8519734A0 (it) Procedimento per la preparazione di alchilarileteri.
IT1155455B (it) Procedimento per la preparazione di imidazolilvinileteri
IT8125628A0 (it) Procedimento per la preparazione di vaccino antitetanico.
IT8224536A0 (it) Procedimento di preparazione di mononitroclorobenzene.
IT8121030A0 (it) Procedimento per la preparazione di (omega-carbalcossi-n-alchil)-dialchilammine.