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发明授权
CN101311121B 氧化锆溶胶的制备方法 失效 - 权利终止

氧化锆溶胶的制备方法
摘要：
本发明的课题在于提供可以以生产率优异的简单工序、高效率地制备透明性优异、在中性和碱性范围内的稳定性大幅度改善了的氧化锆溶胶的方法。本发明通过提供下述氧化锆溶胶的制备方法而解决了上述课题，即，一种氧化锆溶胶的制备方法，包括下述(A)工序和(B)工序，(A)工序是将二羧酸化合物和锆化合物在水性介质中，以相对于锆化合物的锆原子1摩尔，二羧酸化合物大于1摩尔且10摩尔以下的比例，进行混合的工序；(B)工序是将水溶性有机碱以相对于(A)工序中获得的混合物中含有的二羧酸化合物1摩尔，为0.7～2.5摩尔的比例，添加在该混合物中，然后，进行水热处理的工序。
摘要（英）：

The invention provides a method of efficiently producing zirconia sol with excellent transparency and stability being greatly changed in neutral and alkalic range by simple process with excellent productivity. The invention provides a method of producing zirconia sol to solve the problem, that is, a production method of a zirconia sol includes; (A) mixing a dicarboxylic acid compound with a zirconium compound in an aqueous medium, in which a molar ratio of the dicarboxylic acid compound is more than 1 and less than or equal to 10 per mol of zirconium atom in the zirconium compound, and (B) adding 0.7-2.5 mol of a water-soluble organic base per mol of the dicarboxylic acid compound contained in a mixture obtained by the process (A) to the mixture and then treating hydrothermally the resultant mixture.

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