DE2633045C3 - Verfahren zur hydrothermalen Herstellung von Korundteilchen - Google Patents

Verfahren zur hydrothermalen Herstellung von Korundteilchen

Info

Publication number
DE2633045C3
DE2633045C3 DE2633045A DE2633045A DE2633045C3 DE 2633045 C3 DE2633045 C3 DE 2633045C3 DE 2633045 A DE2633045 A DE 2633045A DE 2633045 A DE2633045 A DE 2633045A DE 2633045 C3 DE2633045 C3 DE 2633045C3
Authority
DE
Germany
Prior art keywords
corundum
particles
aluminum oxide
nuclei
corundum particles
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.)
Expired
Application number
DE2633045A
Other languages
German (de)
English (en)
Other versions
DE2633045A1 (de
DE2633045B2 (de
Inventor
Toshiaki Sakaida
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Publication of DE2633045A1 publication Critical patent/DE2633045A1/de
Publication of DE2633045B2 publication Critical patent/DE2633045B2/de
Application granted granted Critical
Publication of DE2633045C3 publication Critical patent/DE2633045C3/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/20—Aluminium oxides
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B9/00—Single-crystal growth from melt solutions using molten solvents
    • 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
    • C01P2004/51—Particles with a specific particle size distribution
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
DE2633045A 1975-07-28 1976-07-22 Verfahren zur hydrothermalen Herstellung von Korundteilchen Expired DE2633045C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50091042A JPS5215498A (en) 1975-07-28 1975-07-28 Process for production of granular corrundum

Publications (3)

Publication Number Publication Date
DE2633045A1 DE2633045A1 (de) 1977-02-17
DE2633045B2 DE2633045B2 (de) 1980-12-18
DE2633045C3 true DE2633045C3 (de) 1982-04-08

Family

ID=14015436

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2633045A Expired DE2633045C3 (de) 1975-07-28 1976-07-22 Verfahren zur hydrothermalen Herstellung von Korundteilchen

Country Status (5)

Country Link
JP (1) JPS5215498A (US20090163788A1-20090625-C00002.png)
DE (1) DE2633045C3 (US20090163788A1-20090625-C00002.png)
FR (1) FR2319580A1 (US20090163788A1-20090625-C00002.png)
GB (1) GB1552943A (US20090163788A1-20090625-C00002.png)
NL (1) NL7608344A (US20090163788A1-20090625-C00002.png)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194185U (ja) * 1983-05-31 1984-12-24 ソニー株式会社 テ−プカセツト
JPS6093690A (ja) * 1983-10-26 1985-05-25 Matsushita Electric Ind Co Ltd テ−プカセツト
JPS62248184A (ja) * 1987-03-26 1987-10-29 Sony Corp テ−プカセツト
FR2652075B1 (fr) * 1989-09-21 1991-12-06 Atochem Macrocristaux d'alumine alpha sous forme de plaquettes et procede d'obtention.
JPH0791468B2 (ja) * 1991-04-26 1995-10-04 信越化学工業株式会社 熱伝導性シリコーンゴム組成物
DE69324581T2 (de) * 1992-06-02 1999-11-18 Sumitomo Chemical Co Alpha-aluminiumoxid
JP2002348115A (ja) * 2001-05-30 2002-12-04 Showa Denko Kk アルミナ粒子及びその製造方法
JP4920141B2 (ja) * 2001-05-30 2012-04-18 昭和電工株式会社 アルミナ粒子及びその製造方法

Also Published As

Publication number Publication date
JPS5215498A (en) 1977-02-05
JPS5722886B2 (US20090163788A1-20090625-C00002.png) 1982-05-15
DE2633045A1 (de) 1977-02-17
FR2319580B3 (US20090163788A1-20090625-C00002.png) 1981-12-18
FR2319580A1 (fr) 1977-02-25
NL7608344A (nl) 1977-02-01
GB1552943A (en) 1979-09-19
DE2633045B2 (de) 1980-12-18

Similar Documents

Publication Publication Date Title
DE3527478C2 (US20090163788A1-20090625-C00002.png)
DE3923671C2 (de) CBN-Schleifmittelkörner aus kubischem Bornitrid und ein Verfahren zu deren Herstellung
DE68905683T2 (de) Trifluorid der Seltenen Erden mit neuen morphologischen Kennzeichen und Verfahren zu seiner Herstellung.
DE2319199A1 (de) Synthetische smectit-materialien
CH619679A5 (en) Process for producing abrasive materials
EP0209084B1 (de) Verfahren zum Herstellen eines keramischen, polykristallinen Schleifmittels
DE2743597C2 (de) Verfahren zur Herstellung von Zeolith-A
DE2633045C3 (de) Verfahren zur hydrothermalen Herstellung von Korundteilchen
DE1667502B2 (de) Synthetisches, quellfähiges, tonähnliches Material
DE3587065T2 (de) Synthese von metallsilikaten vom molekularsiebtyp unter verwendung von kieselsaeure-uebergangsmetalloxidsolen.
DE3338169A1 (de) Verfahren zur erzeugung von aluminiumtrihydroxid mit einem nach bedarf regulierten mittleren durchmesser im bereich von 2 bis 100 (my)m
DE2356865C2 (de) Wasserhaltiges Magnesiumsilikat und Verfahren zu seiner Herstellung
EP0088372B1 (de) Verfahren zur Herstellung eines synthetischen Hectorits
DE4113476A1 (de) Polykristalline, gesinterte schleifkoerner auf basis von alpha-al(pfeil abwaerts)2(pfeil abwaerts)o(pfeil abwaerts)3(pfeil abwaerts), verfahren zu ihrer herstellung und deren verwendung
DE69908078T2 (de) Feines Nickelpulver und Verfahren seiner Herstellung
DE1223819B (de) Verfahren zur Herstellung von Aluminiumoxydtrihydrat
DE1224721B (de) Verfahren zur Herstellung von geformten Zeolith-A-Koerpern
DE1592308B2 (de) Verfahren zur synthetischen Herstel lung von Quarzkristallen
DE2338250A1 (de) Verfahren zur herstellung von aluminiumoxidextrudaten
DE2807660A1 (de) Verfahren zur herstellung von kristallinem aluminosilikat
EP0121043B1 (de) Verfahren zur Herstellung feinverteilter Dispersionen von Metalloxiden in Aluminiumhydroxid
DE2917460C2 (de) Synthetisches kristallines Analcim-zeolith-Material, Verfahren zu dessen Herstellung sowie dessen Verwendung
DE2449802C3 (de) Verfahren zum Herstellen von Clciumaluminathydraten und deren Verwendung
DE3623734A1 (de) Verfahren zur herstellung von mullit mit hoher reinheit
DE2115965C3 (de) Verfahren zur Herstellung von Mordenit und dessen Verwendung als Trager für Katalysatoren fur Kohlenwasserstoff-Umwandlungsverfahren

Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8380 Miscellaneous part iii

Free format text: DER VERTRETER IST NACHZUTRAGEN HENKEL, G., DR.PHIL. KERN, R. M., DIPL.-ING. FEILER, L., DR.RER.NAT.HAENZEL, W., DIPL.-ING. PAT.-ANWAELTE, 8000 MUENCHEN

8328 Change in the person/name/address of the agent

Free format text: KERN, R., DIPL.-ING., PAT.-ANW., 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee