发明名称 |
Process for the preparation of micro-mesoporous gel |
摘要 |
<p>Process for the preparation of a micro-mesoporous gel consisting of a silica matrix in which one or more metal oxides are possibly dispersed comprising: (a) subjecting to hydrolysis and gelification a tetra-alkylorthosilicate with an alkyl-trimethylammonium hydroxide having the formula R(CH3)3N-OH, wherein R is selected from n-butyl, n-pentyl, n-hexyl and n-heptyl, possibly in the presence of one or more metal compounds, the molar ratios in this mixture being: R-OH/SiO2=0-10; R(CH3)3N-OH/SiO2=0.05-0.4; H2O/SiO2=5-40; metal oxides/SiO2=0-0.02; whereas the ratio H2O/R(CH3)3N-OH varies according to the number of carbon atoms in the alkylic chain R as follows: R = n-butyl, H2O/R(CH3-)3N-OH<35; R = n-pentyl, H2O/R(CH3)3N-OH<70; R = n-hexyl, H2O/R(CH3)3N-OH<102; R = n-heptyl, H2O/R(CH3)3N-OH<136; (b) subjecting the gel or solid obtained in step (a) to drying and calcination. <IMAGE></p> |
申请公布号 |
EP0736323(A2) |
申请公布日期 |
1996.10.09 |
申请号 |
EP19960104680 |
申请日期 |
1996.03.25 |
申请人 |
ENIRICERCHE S.P.A. |
发明人 |
PAZZUCCONI, GIANNINO;BASSI, GIANLUCA;MILLINI, ROBERTO;PEREGO, CARLO;PEREGO, GIOVANNI;BELLUSSI, GIUSEPPE |
分类号 |
B01J29/06;B01J21/12;B01J29/03;B01J29/04;B01J35/10;B01J37/03;C01B33/26;(IPC1-7):B01J21/12 |
主分类号 |
B01J29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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