METHOD FOR PRODUCING DISPERSION OF TITANIUM OXIDE PARTICLES
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United States of America Patent
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Feb 23, 2016
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Feb 27, 2015
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Abstract
The invention provides a method for producing an aqueous dispersion of titanium oxide particles which comprises: (a) first step for subjecting an aqueous slurry of titanium oxide particles to wet dispersing treatment in the presence of 15 to 250 parts by mole of acetic acid and 15 to 90 parts by mole of nitric acid each relative to 100 parts by mole of titanium oxide with a medium agitating mill or a high pressure dispersing machine to obtaining an aqueous dispersion of titanium oxide particles before washing, and (b) a second step for washing the aqueous dispersion of titanium oxide particles before washing obtained in the first step (a) to obtain an aqueous dispersion of titanium oxide particles.
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