Patent ID: 9416244
Filing Date: 2016-08-16
CPC Classification: B82Y,C01G,C01P,C08K

Claim Text:
1. A process for producing an aqueous dispersion of zirconium oxide comprising: reacting a zirconium salt with an alkali in water at a temperature in the range of 10° C. to 50° C., wherein a slurry containing particles of zirconium oxide is obtained; filtering, washing, and repulping the slurry; adding an organic acid to the resulting slurry in an amount of one mole part or more per mole part of the zirconium in the slurry; hydrothermally treating the resulting mixture at a temperature of 170° C. or higher; and washing the resulting aqueous dispersion of particles of zirconium oxide, wherein, when the zirconium salt is reacted with an alkali in water,