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METHOD FOR PRODUCING RUTILE-TYPE TITANIUM OXIDE SOL
专利权人:
NISSAN CHEMICAL INDUSTRIES; LTD.
发明人:
MURAKAMI, NATSUMI,MIYAMOTO AI,KOYAMA YOSHINARI
申请号:
EP12852542
公开号:
EP2786968A4
申请日:
2012.11.30
申请国别(地区):
EP
年份:
2015
代理人:
摘要:
There is provided provide a method for efficiently producing a rutile type titanium sol having a particle diameter based on dynamic light scattering method of 5 nm to 100 nm that is excellent in dispersibility. The method for producing a rutile type titanium oxide sol 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 2 of 0.1% by mass to 15% by mass and 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.
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