BR7405244D0 - Processo para a fabricacao de uma alfa-alumina com atividade de sintetizacao - Google Patents

Processo para a fabricacao de uma alfa-alumina com atividade de sintetizacao

Info

Publication number
BR7405244D0
BR7405244D0 BR5244/74A BR524474A BR7405244D0 BR 7405244 D0 BR7405244 D0 BR 7405244D0 BR 5244/74 A BR5244/74 A BR 5244/74A BR 524474 A BR524474 A BR 524474A BR 7405244 D0 BR7405244 D0 BR 7405244D0
Authority
BR
Brazil
Prior art keywords
synthetization
alumin
alpha
activity
manufacture
Prior art date
Application number
BR5244/74A
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 BR7405244D0 publication Critical patent/BR7405244D0/pt

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)
BR5244/74A 1973-06-27 1974-06-26 Processo para a fabricacao de uma alfa-alumina com atividade de sintetizacao BR7405244D0 (pt)

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
BR7405244D0 true BR7405244D0 (pt) 1975-01-21

Family

ID=5885164

Family Applications (1)

Application Number Title Priority Date Filing Date
BR5244/74A BR7405244D0 (pt) 1973-06-27 1974-06-26 Processo para a fabricacao de uma alfa-alumina com atividade de sintetizacao

Country Status (6)

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

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 (pt) * 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
US5225229A (en) * 1986-07-18 1993-07-06 Aluminum Company Of America Aluminum hydroxide production
US4847064A (en) * 1987-12-23 1989-07-11 Aluminum Company Of America Economical process for alpha alumina production
GB8617656D0 (en) * 1986-07-18 1986-08-28 Alcan Int Ltd Alumina
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
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
US4954462A (en) * 1987-06-05 1990-09-04 Minnesota Mining And Manufacturing Company Microcrystalline alumina-based ceramic articles
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
US5139978A (en) * 1990-07-16 1992-08-18 Minnesota Mining And Manufacturing Company Impregnation method for transformation of transition alumina to a alpha alumina
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
US6258137B1 (en) 1992-02-05 2001-07-10 Saint-Gobain Industrial Ceramics, Inc. CMP products
AU650382B2 (en) * 1992-02-05 1994-06-16 Norton Company Nano-sized alpha alumina particles
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
JP2009504562A (ja) * 2005-08-18 2009-02-05 クラリアント・インターナシヨナル・リミテッド 酸化アルミニウムおよび周期系の第１および第２主族の元素の酸化物からの表面修飾されたナノ粒子ならびにそれらの製造
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 (pt) * 1972-03-03 1978-01-05

Also Published As

Publication number Publication date
FR2235086A1 (pt) 1975-01-24
US4019914A (en) 1977-04-26
GB1465111A (en) 1977-02-23
DE2332561B2 (de) 1976-12-30
FR2235086B1 (pt) 1978-08-11
JPS5037806A (pt) 1975-04-08
DE2332561A1 (de) 1975-01-16
IN140824B (pt) 1976-12-25

Similar Documents

Publication Publication Date Title
BR7405244D0 (pt) Processo para a fabricacao de uma alfa-alumina com atividade de sintetizacao
BR7401136D0 (pt) Processo para a preparacao de poliisocianatos com estrutura de biureto
BR7404716D0 (pt) Processo para a preparacao de uma poliolefina
BR7402252D0 (pt) Processo para a producao de paineis remoldaveis
BR7502651A (pt) Processo para producao de n-fosfono-metil-glicina
BR7402784D0 (pt) Processo para a preparacao de 3-metilmercaptopropionaldeido
BR7405079D0 (pt) Processo para a fabricacao de 2,2,6,6-tetrametil-4-oxopiperidina
BR7403569D0 (pt) Processo para a fabricacao de solucao de xilose
BR7506460A (pt) Processo para producao de dicloro-etano
BR7307988D0 (pt) Processo para a producao de uma ftalonitrila clorada
BR7404709D0 (pt) Processo para preparacao de novos poliisocianatos
BR7405092D0 (pt) Processo para producao de nitroftalimidas n-substituidas
BR7407147D0 (pt) Processo para a preparacao de pirazois 3-5-di-substituido
BR7405112D0 (pt) Processo para producao de polieter-imidas
BR7401074D0 (pt) Processo para a fabricacao de cloropirimidinas
BR7402732D0 (pt) Processo para preparacao de nitro-2-halogeno-fenol
BR7100065D0 (pt) Processo para a fabricacao de um eletrodo
BR7401966D0 (pt) Processo para a fabricacao de 5-benzilopirimidina de 4'-alquuldioxialquileno
BR7404834D0 (pt) Processo para a fabricacao de 5-oxohcxanonitrila
BR7410249A (pt) Processo para a producao de novos compostos e compostos assim obtidos
BR7402521D0 (pt) Processo para medicao de ventos
BR7505724A (pt) Processo para producao de s-inosilgisteina
AR200171A1 (es) Procedimiento para la produccion de nuevas benzoilfenilguanidinas
BR7404836D0 (pt) Processo para a preparacao de clorotio-n-ftalimida
BR7402872D0 (pt) Processo para a producao de desinfetantes