Titanium dioxide slurries concentration
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United States of America Patent
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Apr 22, 1997
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N/A
app pub date -
Dec 5, 1994
filing date -
Dec 7, 1993
priority date (Note) -
Expired
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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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