Titanium dioxide slurries concentration

Details Titanium dioxide slurries concentration Titanium dioxide slurries concentration

1994-12-05

1997-04-22

Fortuna, Ana

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210650, 423 1, 423 69, B01D 6100

Patent

active

056226284

ABSTRACT:
A novel method for the production of titanium dioxide slurries having a high solids content comprises subjecting an aqueous slurry of titanium dioxide to cross-flow filtration to produce a slurry containing at least 50%, preferably 60 to 80% titanium dioxide by weight. The slurry can be washed during filtration to reduce the concentration of soluble ions. The process can produce concentrated slurries of titanium dioxide having remarkably low viscosities.

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Porter, M. C., A. I. Ch.E. Symp. Ser. 1972 vol. 68, Part 120, pp. 21-30, Ultrafiltration of Colloidal Suspensions.
Institution of Chemical Engineers. Symposium Series No. 118, Advances in Separation Processes, 4 Apr. 1990, Swansea pp. 107-118.
W. R. Bowen et al `properties of microfiltration membrances, part 3` pp. 107-109.

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