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Dispersion containing ultrafine anatase titanium oxide, anatase titanium oxide ultrafine particles, and method of manufacturing the titanium oxide
Dispersion containing ultrafine anatase titanium oxide, anatase titanium oxide ultrafine particles, and method of manufacturing the titanium oxide
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机译:包含超细锐钛矿型二氧化钛的分散体,锐钛矿型氧化钛超细颗粒及其制造方法
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摘要
PROBLEM TO BE SOLVED: To provide an anatase-type titanium dioxide hyperfine particle having high purity and uniform crystallinity.;SOLUTION: This method for producing the anatase-type titanium dioxide hyperfine particle comprises: a mixing step of adding carboxylic acid or carboxylate to an aqueous solution of TiCl4 and/or TiOCl2 and mixing them; and a hydrolysis step of hydrolyzing the TiCl4 and/or TiOCl2 in the obtained mixture to prepare a dispersion containing the anatase-type titanium dioxide hyperfine particle. The concentration of the Ti ion in the aqueous solution is 2.5 mol/L. In the hydrolysis step, the hydrolysis is performed while neutralizing a hydrochloric acid component to be generated by the hydrolysis by using a base to obtain the anatase-type titanium dioxide hyperfine particle having 1-50 nm crystallite diameter, 0.85-1.15 value represented by (the equivalent diameter of a sphere having the same specific surface area as the anatase-type titanium dioxide hyperfine particle has)/(the crystallite diameter) and 1-3 aspect ratio.;COPYRIGHT: (C)2011,JPO&INPIT
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