Titanium dioxide slurries

Details Titanium dioxide slurries Titanium dioxide slurries

C - Chemistry, Metallurgy

09

C

C09C 1/36 (2006.01) B01D 61/14 (2006.01) C01G 23/047 (2006.01) C09C 3/04 (2006.01) C09D 17/00 (2006.01)

Patent

CA 2137402

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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