Alumina dispersion behavior

Details Alumina dispersion behavior Alumina dispersion behavior

1981-08-14

1982-11-23

Phynes, Lucille M.

Compositions

Preservative agents

Anti-corrosion

423625, 423628, B01J 1300

Patent

active

043604498

ABSTRACT:
A method is provided for forming stable dispersions of boehmite alumina in water containing a peptizing acid by mixing said alumina with dilute aqueous acid solutions and treating the alumina prior to dispersion by heating at temperatures of from about 250.degree. F. to 700.degree. F. and pressures of from about 10 psig to about 2000 psig in the presence of up to 80 weight percent of water based upon the total alumina for a period of time sufficient to stabilize the alumina to the extent necessary. Dispersions can be prepared which will remain fluid up to days longer than will those prepared from the untreated alumina.

REFERENCES:
patent: 2656321 (1953-10-01), Hunter et al.
patent: 2903418 (1959-09-01), Kirshenbaum et al.
patent: 3357791 (1967-12-01), Napier
patent: 3379499 (1968-04-01), Moehl
patent: 3739062 (1973-06-01), Barsotti
patent: 3879310 (1975-04-01), Rigge et al.
patent: 4117105 (1978-09-01), Hertzenberg et al.
patent: 4186178 (1980-01-01), Oberlander
patent: 4191737 (1980-04-01), Irvine
patent: 4248852 (1981-02-01), Wakabayashi et al.
patent: 4313923 (1982-02-01), Block et al.
DuPont "Baymal" Colloidal Alumina, Brochure of E.I. Du Pont de Nemours & Co., Wilmington, Del., 1961, pp. 3, 21, 22 & FIG. 1.
Dispersions of Powders in Liquids, Edited by Parfitt, 2nd Edition, 1973, John Wiley & Sons, N.Y., pp. 2-3.

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