IN140824B - - Google Patents

Info

Publication number
IN140824B
IN140824B IN1413/CAL/1974A IN1413CA1974A IN140824B IN 140824 B IN140824 B IN 140824B IN 1413CA1974 A IN1413CA1974 A IN 1413CA1974A IN 140824 B IN140824 B IN 140824B
Authority
IN
India
Application number
IN1413/CAL/1974A
Other languages
English (en)
Inventor
F Esper
K Bethge
Original Assignee
Bosch Gmbh Robert
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
Priority claimed from DE19732332561 external-priority patent/DE2332561C3/de
Application filed by Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of IN140824B publication Critical patent/IN140824B/en

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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density

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)
IN1413/CAL/1974A 1973-06-27 1974-06-25 IN140824B (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732332561 DE2332561C3 (de) 1973-06-27 Verfahren zum Herstellen einer sinteraktiven a-Tonerde

Publications (1)

Publication Number Publication Date
IN140824B true IN140824B (ja) 1976-12-25

Family

ID=5885164

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1413/CAL/1974A IN140824B (ja) 1973-06-27 1974-06-25

Country Status (6)

Country Link
US (1) US4019914A (ja)
JP (1) JPS5037806A (ja)
BR (1) BR7405244D0 (ja)
FR (1) FR2235086B1 (ja)
GB (1) GB1465111A (ja)
IN (1) IN140824B (ja)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4144195A (en) * 1974-09-24 1979-03-13 Volkswagenwerk Aktiengesellschaft High temperature resistant, heat insulating ceramic material
DE2623482C2 (de) * 1976-05-26 1985-06-27 Alcoa Chemie GmbH, 6700 Ludwigshafen Verfahren zur Herstellung eines kristallinen Aluminiumoxids für Polier-, Läpp- und Schleifmittel
CH601109A5 (ja) * 1976-11-09 1978-06-30 Alusuisse
DE2850064B1 (de) * 1978-11-18 1980-05-08 Giulini Chemie Hexagonale tafelfoermige alpha-Aluminiumoxid-Einkristalle und Verfahren zu ihrer Herstellung
US4251377A (en) * 1979-08-28 1981-02-17 E. I. Du Pont De Nemours And Company Separation device of cordierite ceramic and α-alumina
GB2116958B (en) * 1982-02-23 1985-07-03 Mitsubishi Chem Ind Process for producing a boehmite shaped product and a burned boehmite shaped product
DE3212297C2 (de) * 1982-03-29 1984-12-13 Schweizerische Aluminium Ag, Chippis Verfahren zur Herstellung grobkristalliner Tonerde
US4770869A (en) * 1983-11-07 1988-09-13 Aluminum Company Of America Steam producing process and products
US4491471A (en) * 1984-01-16 1985-01-01 Reynolds Metals Company Composite pellet for use as a carbothermic reduction feed
US5204300A (en) * 1984-07-18 1993-04-20 Kawasaki Steel Corporation Methods of seeding sintered objects
US4678762A (en) * 1985-02-04 1987-07-07 Norton Company Very smooth and flat polycrystalline alumina substrates from direct firing
US4657754A (en) * 1985-11-21 1987-04-14 Norton Company Aluminum oxide powders and process
GB8617656D0 (en) * 1986-07-18 1986-08-28 Alcan Int Ltd Alumina
US4847064A (en) * 1987-12-23 1989-07-11 Aluminum Company Of America Economical process for alpha alumina production
US5225229A (en) * 1986-07-18 1993-07-06 Aluminum Company Of America Aluminum hydroxide production
US4822592A (en) * 1987-02-05 1989-04-18 Aluminum Company Of America Producing alpha alumina particles with pressurized acidic steam
KR910009894B1 (ko) * 1987-03-26 1991-12-03 도도 기끼 가부시끼가이샤 세라믹스 제품 및 그 제조방법
US4954462A (en) * 1987-06-05 1990-09-04 Minnesota Mining And Manufacturing Company Microcrystalline alumina-based ceramic articles
US5185299A (en) * 1987-06-05 1993-02-09 Minnesota Mining And Manufacturing Company Microcrystalline alumina-based ceramic articles
CA1317978C (en) * 1987-06-05 1993-05-18 Thomas E. Wood Microcrystalline alumina-based ceramic articles
US5139978A (en) * 1990-07-16 1992-08-18 Minnesota Mining And Manufacturing Company Impregnation method for transformation of transition alumina to a alpha alumina
US5219806A (en) * 1990-07-16 1993-06-15 Minnesota Mining And Manufacturing Company Alpha phase seeding of transition alumina using chromium oxide-based nucleating agents
JPH04130050A (ja) * 1990-09-18 1992-05-01 Nippon Light Metal Co Ltd 耐火材及びその製造法
US5641469A (en) * 1991-05-28 1997-06-24 Norton Company Production of alpha alumina
AU650382B2 (en) * 1992-02-05 1994-06-16 Norton Company Nano-sized alpha alumina particles
US6258137B1 (en) 1992-02-05 2001-07-10 Saint-Gobain Industrial Ceramics, Inc. CMP products
IL109236A (en) * 1993-04-13 1998-01-04 Sumitomo Chemical Co A-alumina powder and its production
AU699077B2 (en) * 1995-02-21 1998-11-19 Sumitomo Chemical Company, Limited Alpha-alumina and method for producing the same
US5681658A (en) * 1995-05-30 1997-10-28 Aluminum Company Of America Gelation-resistant alumina
JP2004123445A (ja) * 2002-10-02 2004-04-22 Sumitomo Chem Co Ltd αアルミナ粉末およびその製造方法
WO2007020064A1 (de) * 2005-08-18 2007-02-22 Clariant International Ltd Oberflächenmodifizierte nanopartikel aus aluminiumoxid und oxiden von elementen der i. und ii. hauptgruppe des periodensystems sowie deren herstellung
CN104528787B (zh) * 2014-12-19 2016-01-20 贵州天合国润高新材料科技有限公司 一种制备细粒径氧化铝粉末的方法
FR3067617B1 (fr) * 2017-06-20 2019-07-19 Arkema France Catalyseur a base d'alumine alpha et procede d'hydrogenation d'une olefine en presence de celui-ci.
CN108865063A (zh) * 2018-06-12 2018-11-23 山东鲁信四砂泰山磨料有限公司 氧化铝基磨料及其制备方法
CN108910927A (zh) * 2018-07-09 2018-11-30 郑州大学 一种低温制备多面体状纳米α-氧化铝粉的方法
CN114988885A (zh) * 2022-05-25 2022-09-02 河南机电职业学院 一种氧化铝陶瓷粉体浆料及其制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3238049A (en) * 1963-01-23 1966-03-01 Gen Motors Corp Dry grinding of ceramics
US3377176A (en) * 1964-12-04 1968-04-09 Coors Porcelain Co Alumina ceramic
US3615775A (en) * 1970-06-10 1971-10-26 Dresser Ind High alumina refractory composition
US3637406A (en) * 1970-12-23 1972-01-25 American Lava Corp Ultrapure alumina ceramics formed by coprecipitation
US3725094A (en) * 1971-09-20 1973-04-03 Grace W R & Co Doped alumina powder
US3772416A (en) * 1971-10-18 1973-11-13 Shell Oil Co Rehydration and pressure-sintering of hot-pressed alumina structures
JPS53120B2 (ja) * 1972-03-03 1978-01-05

Also Published As

Publication number Publication date
FR2235086A1 (ja) 1975-01-24
DE2332561A1 (de) 1975-01-16
BR7405244D0 (pt) 1975-01-21
JPS5037806A (ja) 1975-04-08
DE2332561B2 (de) 1976-12-30
US4019914A (en) 1977-04-26
FR2235086B1 (ja) 1978-08-11
GB1465111A (en) 1977-02-23

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