Process for producing finely divided dispersions of metal oxides

Details Process for producing finely divided dispersions of metal oxides Process for producing finely divided dispersions of metal oxides

1984-03-07

1986-03-04

Lacey, David L.

Chemistry: physical processes

Physical processes

Crystallization

23305A, 423127, 423629, 106308B, B01D 902

Patent

active

045740011

ABSTRACT:
Disclosed is a process for producing finely divided dispersions of metal oxides and/or metal hydroxides. A supersaturated sodium aluminate liquor containing dissolved aluminum hydroxide is seeded with particles of at least one metal oxide and/or metal hydroxide. The liquor is subjected to predetermined crystallization conditions to form a crystallized solid. The crystallized solid is then separated from the liquor and dried.

REFERENCES:
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patent: 3838980 (1974-10-01), Gnyra
patent: 3901676 (1975-08-01), Heinze et al.
patent: 4291010 (1981-09-01), Senda et al.
patent: 4447270 (1984-05-01), Howard et al.
patent: 4512959 (1985-04-01), Pohland et al.
patent: 4530699 (1985-07-01), Schlesinger et al.
Fisher et al., "The Eutectic and Liquidus in the Al.sub.2 O.sub.3 --ZrO.sub.2 System" Journal of Materials Science 16 (1981), 3447-3451.

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