IT8519142A0 - 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. - Google Patents

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.

Info

Publication number
IT8519142A0
IT8519142A0 IT8519142A IT1914285A IT8519142A0 IT 8519142 A0 IT8519142 A0 IT 8519142A0 IT 8519142 A IT8519142 A IT 8519142A IT 1914285 A IT1914285 A IT 1914285A IT 8519142 A0 IT8519142 A0 IT 8519142A0
Authority
IT
Italy
Prior art keywords
microns
spherical
preparation
size distribution
grain size
Prior art date
Application number
IT8519142A
Other languages
English (en)
Other versions
IT1184114B (it
Inventor
Emiliano Mello Ceresa
Antonio Gennaro
Paolo Cortesi
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 IT8519142A0 publication Critical patent/IT8519142A0/it
Priority to IT19142/85A priority Critical patent/IT1184114B/it
Priority to SU864013919A priority patent/SU1709901A3/ru
Priority to AU52426/86A priority patent/AU585568B2/en
Priority to CA000499807A priority patent/CA1288575C/en
Priority to JP61006618A priority patent/JPS61256921A/ja
Priority to DE8686300319T priority patent/DE3672502D1/de
Priority to ES550980A priority patent/ES8701690A1/es
Priority to EP86300319A priority patent/EP0188388B1/en
Priority to KR1019860000279A priority patent/KR900004065B1/ko
Priority to US07/102,295 priority patent/US4818515A/en
Application granted granted Critical
Publication of IT1184114B publication Critical patent/IT1184114B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • 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
    • 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
    • C01P2006/12—Surface area
    • 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
    • C01P2006/14—Pore volume

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
IT19142/85A 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 IT1184114B (it)

Priority Applications (10)

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
SU864013919A SU1709901A3 (ru) 1985-01-18 1986-01-15 Способ получени сферического @ -оксида алюмини
AU52426/86A AU585568B2 (en) 1985-01-18 1986-01-16 Alpha-alumina in the form of spherical, non-aggregated particles having a narrow size distribution and sizes below 2 microns and process for preparing the same
JP61006618A JPS61256921A (ja) 1985-01-18 1986-01-17 ２ミクロンより小さくまた粒度分布の狭い非凝集球体粒子形アルフアアルミナとその製造方法
CA000499807A CA1288575C (en) 1985-01-18 1986-01-17 .alpha.-ALUMINA IN THE FORM OF SPHERICAL, NON AGGREGATED PARTICLES HAVING A NARROW SIZE DISTRIBUTION AND SIZES BELOW 2 MICRONS, AND PROCESS FOR PREPARING THE SAME
DE8686300319T DE3672502D1 (de) 1985-01-18 1986-01-17 Alpha-aluminiumoxidpartikel und ihr herstellungsverfahren.
ES550980A ES8701690A1 (es) 1985-01-18 1986-01-17 Un procedimiento para preparar alfa-alumina.
EP86300319A EP0188388B1 (en) 1985-01-18 1986-01-17 Alpha-alumina particles, and process for preparing the same
KR1019860000279A KR900004065B1 (ko) 1985-01-18 1986-01-18 좁은 크기 분포와 2 미크론 이하의 크기를 갖는 구형 비응집 입자 형태의 알파-알루미나의 제조방법
US07/102,295 US4818515A (en) 1985-01-18 1987-09-25 Alpha-alumina in the form of spherical non-aggregated particles having a narrow size distribution and sizes below 2 microns and process for preparing same

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
IT8519142A0 true IT8519142A0 (it) 1985-01-18
IT1184114B IT1184114B (it) 1987-10-22

Family

ID=11155198

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (10)

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

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
RU2138461C1 (ru) * 1993-07-27 1999-09-27 Сумитомо Кемикал Компани, Лимитед Алюмооксидная композиция (варианты) и способ получения алюмооксидной керамики
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
UA99909C2 (ru) * 2007-01-15 2012-10-25 Сейнт-Гобейн Серамикс Энд Пластик, Инк. Керамический зернистый материал и способ его получения
JP2008195569A (ja) * 2007-02-13 2008-08-28 Kanto Denka Kogyo Co Ltd アルミナ微粒子
WO2009133904A1 (ja) * 2008-04-30 2009-11-05 電気化学工業株式会社 アルミナ粉末、その製造方法、及びそれを用いた樹脂組成物
FR2943333B1 (fr) * 2009-03-20 2011-08-05 Baikowski Alumine, luminophores et composes mixtes ainsi que procedes de preparation associes
KR101413030B1 (ko) * 2009-03-24 2014-07-02 생-고벵 아브라시프 화학적 기계적 평탄화 패드 컨디셔너로 사용되는 연마 공구
CN102484054A (zh) * 2009-06-02 2012-05-30 圣戈班磨料磨具有限公司 耐腐蚀性cmp修整工件及其制造和使用方法
US20110097977A1 (en) * 2009-08-07 2011-04-28 Abrasive Technology, Inc. Multiple-sided cmp pad conditioning disk
EP2474025A2 (en) 2009-09-01 2012-07-11 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.
KR20130060335A (ko) * 2010-10-01 2013-06-07 생-고뱅 세라믹스 앤드 플라스틱스, 인코포레이티드 다상 알루미나 입자
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)

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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
SU1709901A3 (ru) 1992-01-30
EP0188388B1 (en) 1990-07-11
AU5242686A (en) 1986-07-24
CA1288575C (en) 1991-09-10
KR900004065B1 (ko) 1990-06-11
EP0188388A2 (en) 1986-07-23
US4818515A (en) 1989-04-04
DE3672502D1 (de) 1990-08-16
IT1184114B (it) 1987-10-22
AU585568B2 (en) 1989-06-22
JPS61256921A (ja) 1986-11-14
KR860005749A (ko) 1986-08-13
ES8701690A1 (es) 1986-12-01
ES550980A0 (es) 1986-12-01
EP0188388A3 (en) 1988-04-06

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