JPS557532A - Production of high purity alumina fine powder - Google Patents

Production of high purity alumina fine powder

Info

Publication number
JPS557532A
JPS557532A JP7857878A JP7857878A JPS557532A JP S557532 A JPS557532 A JP S557532A JP 7857878 A JP7857878 A JP 7857878A JP 7857878 A JP7857878 A JP 7857878A JP S557532 A JPS557532 A JP S557532A
Authority
JP
Japan
Prior art keywords
alumina
granules
fine powder
high purity
alumina fine
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
JP7857878A
Other languages
Japanese (ja)
Other versions
JPS5760290B2 (en
Inventor
Hisao Adachi
Takeshi Takao
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.)
Taiheiyo Kinzoku KK
Pacific Metals Co Ltd
Original Assignee
Taiheiyo Kinzoku KK
Pacific Metals Co Ltd
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 Taiheiyo Kinzoku KK, Pacific Metals Co Ltd filed Critical Taiheiyo Kinzoku KK
Priority to JP7857878A priority Critical patent/JPS557532A/en
Publication of JPS557532A publication Critical patent/JPS557532A/en
Publication of JPS5760290B2 publication Critical patent/JPS5760290B2/ja
Granted legal-status Critical Current

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

Abstract

PURPOSE: To economically produce high purity alumina fine powder with high chemical stability by scattering molten alumina; solidifying the scattered alumina by quenching; acid-treating the resulting hollow granules to remove impurities; and finely pulverizing the granules.
CONSTITUTION: Molten alumina such as Bayer alumina is scattered by spraying compressed air and solidified by quenching to form thin porous hollow corundum crystal granules of low strength and about 0.1W7 mm diameter. The granules are then dipped in a mineral acid soln. such as sulfuric acid to elution-remove impurities, washed with clear water, heat-dried, and finely pulverized to obtain high purity alumina fine powder.
COPYRIGHT: (C)1980,JPO&Japio
JP7857878A 1978-06-30 1978-06-30 Production of high purity alumina fine powder Granted JPS557532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7857878A JPS557532A (en) 1978-06-30 1978-06-30 Production of high purity alumina fine powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7857878A JPS557532A (en) 1978-06-30 1978-06-30 Production of high purity alumina fine powder

Publications (2)

Publication Number Publication Date
JPS557532A true JPS557532A (en) 1980-01-19
JPS5760290B2 JPS5760290B2 (en) 1982-12-18

Family

ID=13665777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7857878A Granted JPS557532A (en) 1978-06-30 1978-06-30 Production of high purity alumina fine powder

Country Status (1)

Country Link
JP (1) JPS557532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8124048B2 (en) 2006-12-15 2012-02-28 Nippon Light Metal Company, Ltd. Process for producing high-purity α-alumina

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8124048B2 (en) 2006-12-15 2012-02-28 Nippon Light Metal Company, Ltd. Process for producing high-purity α-alumina

Also Published As

Publication number Publication date
JPS5760290B2 (en) 1982-12-18

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