Title:
ZIRCONIA HYDRATE SOL AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH0551214
Kind Code:
A
Abstract:
PURPOSE: To obtain a zirconia hydrate sol fit for zirconia powder having satisfactory moldability because the sol contains little unreacted matter and has two kinds of single distributions.
CONSTITUTION: Zirconia hydrate is added to an aq. soln. of a zirconium salt by ≥5wt.% (expressed in terms of zirconia), the anion concn. of the soln. is regulated to <0.5 gram ion/1 and hydrolysis is carried out to produce the objective zirconia hydrate sol having peaks of single distributions at ≤0.15μm particle diameter and ≥0.3μm particle diameter as shown by the diagram. The single distribution in a range of ≥0.3μm accounts for ≥10% (expressed in terms of volume).
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Inventors:
MATSUI KOJI
CHIKAMORI YUJI
OKAI MICHIJI
CHIKAMORI YUJI
OKAI MICHIJI
Application Number:
JP23380091A
Publication Date:
March 02, 1993
Filing Date:
August 22, 1991
Export Citation:
Assignee:
TOSOH CORP
International Classes:
C01G25/02; (IPC1-7): C01G25/02
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