-
公开(公告)号:US06797206B1
公开(公告)日:2004-09-28
申请号:US09701175
申请日:2001-02-07
申请人: Renate Marina De Vos , Hendrik Verweij , Benedictus Clemens Bonekamp , Petrus Paulus Antonius Catharina Pex
发明人: Renate Marina De Vos , Hendrik Verweij , Benedictus Clemens Bonekamp , Petrus Paulus Antonius Catharina Pex
IPC分类号: B29D6500
CPC分类号: B01D67/0048 , B01D67/0079 , B01D69/148 , B01D71/024 , B01D71/025 , B01D71/027 , B01D2323/08 , B01D2325/02 , B01D2325/38
摘要: Microporous hydrophobic inorganic membrane having an average pore size of less than 2 nm and a hydrophobicity index octane/water of at least 2 can be obtained by a process comprising hydrolyzing a metal alkoxide in the presence of a hydrocarbyl metal alkoxide having at least one non-hydrolyzable group in an organic solvent to produce a metal (hydr)oxide sol, and precipitating metal (hydr)oxide from said sol and drying the precipitate. In this process, at least 50% of the amount of hydrocarbyl metal alkoxide is introduced into the solvent after 20% of the hydrolysis period has lapsed.
摘要翻译: 平均孔径小于2nm,疏水性指数辛烷/水至少为2的微孔疏水性无机膜可以通过包括在具有至少一个非离子表面活性剂的烃基金属醇盐的存在下水解金属醇盐的方法获得, 可水解的基团,以产生氧化金属(hydr)溶胶,并从所述溶胶沉淀金属(氢氧化物)并干燥沉淀物。 在该方法中,在20%的水解时间过后,将至少50%的烃基金属醇盐的量引入溶剂中。