Patent ID: 9023147
Filing Date: 2015-05-05
Classification: A01N,B01J,B82Y,C01G,C01P,C09D,G02B,Y10T

Abstract:
1. A method for producing a rutile titanium oxide sol having a particle diameter based on dynamic light scattering method of 5 nm to 100 nm, comprising: process (a): mixing metastannic acid, a titanium alkoxide, a quaternary ammonium hydroxide, oxalic acid, and water so as to contain 0.02 moles to 0.8 moles of tin atoms, 0.1 moles to 3.5 moles of the quaternary ammonium hydroxide, and 0.1 moles to 8.0 moles of the oxalic acid with respect to 1 mole of titanium atoms of the titanium alkoxide to prepare a titanium-containing aqueous solution with a concentration in terms of TiO process (b): subjecting the titanium-containing aqueous solution obtained in process (a) to a hydrothermal treatment at a temperature from 100° C. to 170° C.