Treatment of pigment

Details Treatment of pigment Treatment of pigment

C - Chemistry, Metallurgy

09

C

6/208

C09C 1/36 (2006.01)

Patent

CA 1052060

Abstract of the Disclosure "TREATMENT OF PIGMENT" A process for the treatment of titanium dioxide pigment which involves adding to a pigment slurry a compound of phosphorus of aluminium, of zirconium, of titanium and of silicon, adjusting the pH of the slurry to a value of from 3.5 to 4.5, followed by adding to the slurry a compound of phosphorus of an alkaline reacting compound of aluminium prior to the addition of mineral acid to adjust the pH of the slurry to a value of 6.5 to 8.

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