Novel cerium oxide particulates

Details Novel cerium oxide particulates Novel cerium oxide particulates

1990-01-08

1992-01-14

Andrews, Melvyn J.

Chemistry of inorganic compounds

Rare earth compound

502304, 502439, C01F 1700

Patent

active

050808770

ABSTRACT:
Morphologically improved cerium oxide particulates having low sulfur content, useful, e.g., as catalyst/catalyst supports, and having a B.E.T. specific surface of at least 130 m.sup.2 /g measured at a temperature ranging from 400.degree. C. to 500.degree. C., are prepared by reacting an aqueous solution of cerium (IV) salt with an aqueous solution of sulfate ions to precipitate a basic ceric sulfate, filtering the precipitate which results, washing and optionally drying said precipitate, and thence calcining same.

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Chemical Abstract 89:11402w.
Chemical Abstract 95:132221u.
S. Horsley et al., Symp. Eur. Metall. Poudres, 4th, 1 Paper 12, 1975.
R. Sh. Mikhail et al., J. Appln. Chem., 20, 7, 222-225 (1970).

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