JPS57145026A - Preparation of superfine particulate aluminun oxide - Google Patents

Preparation of superfine particulate aluminun oxide

Info

Publication number
JPS57145026A
JPS57145026A JP56026848A JP2684881A JPS57145026A JP S57145026 A JPS57145026 A JP S57145026A JP 56026848 A JP56026848 A JP 56026848A JP 2684881 A JP2684881 A JP 2684881A JP S57145026 A JPS57145026 A JP S57145026A
Authority
JP
Japan
Prior art keywords
gas
hcl
mixed
resultant
gas containing
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
JP56026848A
Other languages
Japanese (ja)
Other versions
JPS604131B2 (en
Inventor
Shinichiro Kobayashi
Hideo Arai
Satoko Omuro
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.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
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 Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP56026848A priority Critical patent/JPS604131B2/en
Publication of JPS57145026A publication Critical patent/JPS57145026A/en
Publication of JPS604131B2 publication Critical patent/JPS604131B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

PURPOSE: To prepare the titled amorphous Al2O3 having a uniform particle diameter, by blowing a gas containing HCl on a melt or solid of Al, and burning the H2 in the mixed gas of AlCl3 with H2.
CONSTITUTION: A gas containing HCl is blown on a solid or molten Al heated at a temperature in the range of 200W1,200°C to form a mixed gas of AlCl3 with H2 by the reaction of the Al with HCl. A gas containing oxygen is mixed with the resultant mixed gas and burned or H2 gas is previously mixed with the gas containing the HCl if necessary, and the resultant gas with a high H2 content is burned in the gas containing oxygen. AlCl3 is reacted with steam in the formed oxyhydrogen flame to form Al2O3 and HCl gas. The resultant fine particulate Al2O3 is then separated from the burned discharged gas while at a temperatue of 90°C or above. The resultant high-purity superfine particulate Al2O3 is used as abrasives, fillers in resins, additives in printing ink, etc.
COPYRIGHT: (C)1982,JPO&Japio
JP56026848A 1981-02-27 1981-02-27 Method for producing ultrafine aluminum oxide Expired JPS604131B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56026848A JPS604131B2 (en) 1981-02-27 1981-02-27 Method for producing ultrafine aluminum oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56026848A JPS604131B2 (en) 1981-02-27 1981-02-27 Method for producing ultrafine aluminum oxide

Publications (2)

Publication Number Publication Date
JPS57145026A true JPS57145026A (en) 1982-09-07
JPS604131B2 JPS604131B2 (en) 1985-02-01

Family

ID=12204690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56026848A Expired JPS604131B2 (en) 1981-02-27 1981-02-27 Method for producing ultrafine aluminum oxide

Country Status (1)

Country Link
JP (1) JPS604131B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001047812A1 (en) * 1999-12-27 2001-07-05 Showa Denko K.K. Alumina particles, method for producing the same, composition comprising the same, and alumina slurry for polishing
US7067105B2 (en) 1999-12-27 2006-06-27 Showa Denko K.K. Alumina particles, production process thereof, composition comprising the particles and alumina slurry for polishing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001047812A1 (en) * 1999-12-27 2001-07-05 Showa Denko K.K. Alumina particles, method for producing the same, composition comprising the same, and alumina slurry for polishing
US7067105B2 (en) 1999-12-27 2006-06-27 Showa Denko K.K. Alumina particles, production process thereof, composition comprising the particles and alumina slurry for polishing

Also Published As

Publication number Publication date
JPS604131B2 (en) 1985-02-01

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