Process for preparing zeolites
    3.
    发明公开

    公开(公告)号:EP2258658A8

    公开(公告)日:2012-03-07

    申请号:EP10179898.1

    申请日:1998-09-18

    IPC分类号: C01B37/00 C01B37/02

    摘要: A process is described for the preparation of zeolitic catalysts in the form of microspheres, comprising zeolite and oligomeric silica, characterized by a high mechanical resistance. The process consists in subjecting to rapid drying the suspension, to which tetra-alkylorthosilicate is optionally added, resulting from the synthesis of zeolite by hydrothermal treatment at autogenous pressure of the reagent mixture containing tetra-alkylammoniumhydroxide as templating agent, and subjecting the product resulting from the drying to calcination.

    Process for the preparation of alkylated aromatic hydrocarbons
    6.
    发明公开
    Process for the preparation of alkylated aromatic hydrocarbons 有权
    制备烷基化芳烃的方法

    公开(公告)号:EP2267100A2

    公开(公告)日:2010-12-29

    申请号:EP10182637.8

    申请日:2005-06-21

    摘要: The present invention relates to a new zeolite having a beta-type crystalline structure, characterized by a distribution of the Lewis acid sites and Brønsted acid sites corresponding to a molar ratio [Lewis sites]/[Brønsted sites] equal to or higher than 1.5. This new zeolite is useful in preparation processes of alkylated aromatic hydrocarbons through the alkylation and/or transalkylation of aromatic compounds. The preparation method of the new zeolite is also object of the present invention.

    摘要翻译: 本发明涉及具有β型晶体结构的新型沸石,其特征在于对应于等于或高于1.5的摩尔比[路易斯位点] / [布朗斯台德位点]的路易斯酸位点和布朗斯台德酸位点的分布。 这种新沸石可用于通过芳族化合物的烷基化和/或烷基转移作用制备烷基化芳烃的方法。 新型沸石的制备方法也是本发明的目的。