Alumina dispersion behavior

Details Alumina dispersion behavior Alumina dispersion behavior

B - Operations, Transporting

01

J

134/51

B01J 13/00 (2006.01) C01F 7/02 (2006.01)

Patent

CA 1161331

ICR 6470 IMPROVED ALUMINA DISPERSION BEHAVIOR Abstract of the Disclosure 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 tempera- tures of from about 250°F to 700°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. Stable dispersions for up to 30 days have been ob- tained in the process of the instant invention.

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