Title:
MANUFACTURE OF GRANULAR ALUMINA
Document Type and Number:
Japanese Patent JPS5815029
Kind Code:
A
Abstract:
PURPOSE: To obtain high purity alumina having a fine granularshape by calcining aluminum chloride precipitated by adding acetic acid to an aqueous aluminum chloride soln.
CONSTITUTION: Acetic acid is added to an aqueous aluminum chloride soln. to precipitate aluminum chloride hexahydrate, or ≤90wt% of the dissolved aluminum chloride is precipitated and the precipitate is redissolved and precipitated again. The precipitate is dried and calcined to obtain high purity alumina having a fine granular shape.
More Like This:
Inventors:
NAKAMURA YOSHIYUKI
WATANABE SEIICHIROU
WATANABE SEIICHIROU
Application Number:
JP11415881A
Publication Date:
January 28, 1983
Filing Date:
July 21, 1981
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KK
International Classes:
C01F7/30; C01F7/02; (IPC1-7): C01F7/02
Attorney, Agent or Firm:
Inoue Masao