Process for manufacturing titanium dioxide pigment
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United States of America Patent
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Issued Date -
Jan 31, 2008
app pub date -
Jul 25, 2006
filing date -
Jul 25, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A process is described for manufacturing a titanium dioxide pigment, comprising the steps of a) preparing an aqueous, high solids slurry by gathering materials including crude titanium dioxide from the oxidation of titanium tetrachloride, a dispersant and water and then mixing the gathered materials to form the slurry, b) diluting the aqueous, high solids slurry by adding a further amount of water to the high solids slurry with mixing, c) media-milling the resultant aqueous, lesser solids slurry, d) recovering the media-milled, crude titanium dioxide product and e) finishing the media-milled, crude titanium dioxide product to produce a finished titanium dioxide pigment product.
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