Novel cerium oxide particulates

Details Novel cerium oxide particulates Novel cerium oxide particulates

1989-12-29

1991-05-21

Andrews, Melvyn J.

Chemistry of inorganic compounds

Rare earth compound

592304, 592439, C01F 1700

Patent

active

050173529

ABSTRACT:
Morphologically improved cerium oxide particulates useful, e.g., as catalysts/catalyst supports, and having a B.E.T. specific surface of from 100 to 130 m.sup.2 /g, measured at a temperature ranging from 400.degree. C. to 450.degree. C., are prepared by hydrolyzing an aqueous solution of a cerium (IV) salt in an acidic medium, filtering the precipitate of hydrolysis which results, washing and optionally drying said precipitate, and thence calcining same.

REFERENCES:
patent: 3770422 (1973-11-01), Darnell
patent: 4356106 (1982-10-01), Woodhead et al.
patent: 4360388 (1982-11-01), Nauroth et al.
patent: 4529410 (1985-07-01), Khaladji et al.
patent: 4606847 (1986-08-01), Woodhead
patent: 4663137 (1987-05-01), Chane-Ching et al.
R. Sh. Mikhail et al., "Surface Area and Pore Structure of Ceric Oxide", J. Appl. Chem. 1970 vol. 20, Jul. pp. 222-225.
Chemical Abstract 95: 132221u vol. 95, 1981.
Chemical Abstract 89: 11402w vol. 89, 1978.
C. R. Acad Sc. Paris, t. 292 (23 Mar. 1981) pp. 883-885.
S. Horseley et al., "The Preparation of Cerium Oxide by Thermal Decomposition and the Determination of the Particle Characteristics" 1975 (Chem. Abstract 87:094652).

Affiliated with

Also associated with

Rating

Novel cerium oxide particulates does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Novel cerium oxide particulates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Novel cerium oxide particulates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-236645