ES550980A0 - Un procedimiento para preparar alfa-alumina. - Google Patents

Un procedimiento para preparar alfa-alumina.

Info

Publication number
ES550980A0
ES550980A0 ES550980A ES550980A ES550980A0 ES 550980 A0 ES550980 A0 ES 550980A0 ES 550980 A ES550980 A ES 550980A ES 550980 A ES550980 A ES 550980A ES 550980 A0 ES550980 A0 ES 550980A0
Authority
ES
Spain
Prior art keywords
alumina
procedure
preparing alpha
alpha
preparing
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
ES550980A
Other languages
English (en)
Other versions
ES8701690A1 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Publication of ES8701690A1 publication Critical patent/ES8701690A1/es
Publication of ES550980A0 publication Critical patent/ES550980A0/es
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/02Aluminium oxide; Aluminium hydroxide; Aluminates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04Alumina
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/02Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/44Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
    • C01F7/441Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/01Particle morphology depicted by an image
    • C01P2004/03Particle morphology depicted by an image obtained by SEM
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/30Particle morphology extending in three dimensions
    • C01P2004/32Spheres
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/54Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/61Micrometer sized, i.e. from 1-100 micrometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/62Submicrometer sized, i.e. from 0.1-1 micrometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/64Nanometer sized, i.e. from 1-100 nanometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/10Solid density
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/12Surface area
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/14Pore volume
ES550980A 1985-01-18 1986-01-17 Un procedimiento para preparar alfa-alumina. Expired ES8701690A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19142/85A IT1184114B (it) 1985-01-18 1985-01-18 Alfa allumina sotto forma di particelle sferiche,non aggregate,a distribuzione granulometrica ristretta e di dimensioni inferiori a 2 micron,e processo per la sua preparazione

Publications (2)

Publication Number Publication Date
ES8701690A1 ES8701690A1 (es) 1986-12-01
ES550980A0 true ES550980A0 (es) 1986-12-01

Family

ID=11155198

Family Applications (1)

Application Number Title Priority Date Filing Date
ES550980A Expired ES8701690A1 (es) 1985-01-18 1986-01-17 Un procedimiento para preparar alfa-alumina.

Country Status (10)

Country Link
US (1) US4818515A (es)
EP (1) EP0188388B1 (es)
JP (1) JPS61256921A (es)
KR (1) KR900004065B1 (es)
AU (1) AU585568B2 (es)
CA (1) CA1288575C (es)
DE (1) DE3672502D1 (es)
ES (1) ES8701690A1 (es)
IT (1) IT1184114B (es)
SU (1) SU1709901A3 (es)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4902666A (en) * 1986-07-02 1990-02-20 Chevron Research Company Process for the manufacture of spheroidal bodies by selective agglomeration
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
US5149520A (en) * 1987-12-23 1992-09-22 Aluminum Company Of America Small sized alpha alumina particles and platelets
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
DE4241625C1 (de) * 1992-12-10 1994-06-30 Veitsch Radex Ag Verfahren zur Herstellung von sinteraktivem, weitestgehend sphärischem Aluminiumoxid sowie dessen Verwendung
HU215748B (hu) * 1993-07-27 1999-02-01 Sumitomo Chemical Co. Alumínium-oxid kompozíció, öntött alumínium-oxid termék, alumínium-oxid kerámia, eljárás a kerámia előállítására és alumínium-oxid részecskék alkalmazása oxidkerámiákhoz
AUPN053395A0 (en) * 1995-01-12 1995-02-09 Alcoa Of Australia Limited Production of alpha alumina
AU699077B2 (en) * 1995-02-21 1998-11-19 Sumitomo Chemical Company, Limited Alpha-alumina and method for producing the same
DE19836821A1 (de) * 1998-08-14 2000-02-24 Rwe Dea Ag Böhmitische Tonerden und aus diesen erhältliche phasenreine, hochtemperaturstabile und hochporöse Aluminiumoxide
DE10035679A1 (de) * 2000-07-21 2002-01-31 Inst Neue Mat Gemein Gmbh Nanoskalige Korundpulver, daraus gefertigte Sinterkörper und Verfahren zu deren Herstellung
JP4836163B2 (ja) * 2004-12-20 2011-12-14 独立行政法人産業技術総合研究所 アルミナ粉末の製造方法及びその方法で得られるアルミナ粉末
DE102005040286A1 (de) * 2005-08-25 2007-03-01 Basf Ag Mechanisch stabiler Katalysator auf Basis von alpha-Aluminiumoxid
JP2007331978A (ja) * 2006-06-15 2007-12-27 Shin Etsu Chem Co Ltd 押出成形又は射出成形用の組成物及び成形体の製造方法
US20080271384A1 (en) * 2006-09-22 2008-11-06 Saint-Gobain Ceramics & Plastics, Inc. Conditioning tools and techniques for chemical mechanical planarization
US7417003B2 (en) * 2006-12-29 2008-08-26 Uop Llc Solid acid catalyst and process for decomposition of cumene hydroperoxide
TW200848370A (en) * 2007-01-15 2008-12-16 Saint Gobain Ceramics & Plastics Inc Ceramic particulate material and processes for forming same
JP2008195569A (ja) * 2007-02-13 2008-08-28 Kanto Denka Kogyo Co Ltd アルミナ微粒子
KR101505237B1 (ko) * 2008-04-30 2015-03-23 덴키 가가쿠 고교 가부시기가이샤 알루미나 분말, 그의 제조 방법 및 그것을 사용한 수지 조성물
FR2943333B1 (fr) 2009-03-20 2011-08-05 Baikowski Alumine, luminophores et composes mixtes ainsi que procedes de preparation associes
CN102341215B (zh) * 2009-03-24 2014-06-18 圣戈班磨料磨具有限公司 用作化学机械平坦化垫修整器的研磨工具
JP5453526B2 (ja) * 2009-06-02 2014-03-26 サンーゴバン アブレイシブズ,インコーポレイティド 耐腐食性cmpコンディショニング工具並びにその作製および使用法
US20110097977A1 (en) * 2009-08-07 2011-04-28 Abrasive Technology, Inc. Multiple-sided cmp pad conditioning disk
WO2011028700A2 (en) 2009-09-01 2011-03-10 Saint-Gobain Abrasives, Inc. Chemical mechanical polishing conditioner
JP5410245B2 (ja) * 2009-11-11 2014-02-05 電気化学工業株式会社 球状アルミナ粉末、その製造方法及び用途。
RU2554196C2 (ru) * 2010-03-09 2015-06-27 Сумитомо Кемикал Компани, Лимитед α-ОКСИД АЛЮМИНИЯ ДЛЯ ПОЛУЧЕНИЯ МОНОКРИСТАЛЛА САПФИРА И СПОСОБ ЕГО ПОЛУЧЕНИЯ
ES2374479B1 (es) * 2010-08-06 2012-12-26 Universitat De Valencia Procedimiento de obtención de corindón nanocristalino a partir de alumbres naturales o sintéticos.
BR112013007488A2 (pt) * 2010-10-01 2018-05-02 Saint Gobain Ceramics partícula e processo para fabricar uma partícula
CN104787786A (zh) * 2015-02-16 2015-07-22 青海圣诺光电科技有限公司 一种制备α-氧化铝的方法
CN104787792A (zh) * 2015-02-16 2015-07-22 青海圣诺光电科技有限公司 一种制备γ-氧化铝的方法
JP6961428B2 (ja) * 2017-09-08 2021-11-05 一般財団法人ファインセラミックスセンター 多孔質アルミナ焼結体及びその製造方法
JP7216390B2 (ja) * 2018-03-26 2023-02-01 河合石灰工業株式会社 α-アルミナ及び結晶粒子の内部に複数の空孔を有するα-アルミナの製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2642337A (en) * 1948-06-09 1953-06-16 Aluminum Co Of America Method of converting crystalline alumina hydrate to alpha alumina
US3003919A (en) * 1956-06-22 1961-10-10 Procter & Gamble Alumina abrasive materials
FR1248038A (fr) * 1959-10-28 1960-12-09 Electrochimie Electrometallurg Procédé de fabrication d'alumines anhydres
US4012337A (en) * 1974-03-13 1977-03-15 Exxon Research And Engineering Company High surface area alpha aluminas
NO791174L (no) * 1978-04-20 1979-10-23 Smidth & Co As F L Fremgangsmaate for fremstilling av vannfri aluminiumoksyd

Also Published As

Publication number Publication date
AU585568B2 (en) 1989-06-22
IT8519142A0 (it) 1985-01-18
DE3672502D1 (de) 1990-08-16
AU5242686A (en) 1986-07-24
KR900004065B1 (ko) 1990-06-11
EP0188388A3 (en) 1988-04-06
KR860005749A (ko) 1986-08-13
US4818515A (en) 1989-04-04
EP0188388A2 (en) 1986-07-23
ES8701690A1 (es) 1986-12-01
IT1184114B (it) 1987-10-22
JPS61256921A (ja) 1986-11-14
SU1709901A3 (ru) 1992-01-30
EP0188388B1 (en) 1990-07-11
CA1288575C (en) 1991-09-10

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970519