Morphologically improved ceric oxide particulates

Details Morphologically improved ceric oxide particulates Morphologically improved ceric oxide particulates

1994-02-10

1995-11-14

Bos, Steven

Chemistry of inorganic compounds

Rare earth compound

C01F 1700

Patent

active

054664284

ABSTRACT:
Morphologically improved ceric oxide particulates having a grain size distribution such that the mean diameter of the aggregates thereof ranges from 0.2 to 1 .mu.m, are conveniently prepared by (i) hydrolyzing an aqueous solution of a cerium (IV) salt in an acid medium, in the presence of an aqueous colloidal dispersion of a cerium (IV) compound, (ii) separating the resulting precipitate, and (iii) heat treating said separated precipitate, advantageously by calcination at elevated temperatures.

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Chemical Abstracts, vol. 102, No. 2, Jan., 1985, p. 132, Abstract No. 8968s, "Optimization of the Preparation of Holmium Yttriate".

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