BIMENTAL-EXCHANGEDZEOLITE BETA FROM ORGANOTEMPLATE-FREE SYNTHESIS AND USETHEREOF IN THE SELECTIVE CATALYTIC REDUCTION OF NOx
    91.
    发明公开
    BIMENTAL-EXCHANGEDZEOLITE BETA FROM ORGANOTEMPLATE-FREE SYNTHESIS AND USETHEREOF IN THE SELECTIVE CATALYTIC REDUCTION OF NOx 审中-公开
    BIMETAL交换的β型沸石OFF有机模板干法合成及其用途在选择性催化NOx还原

    公开(公告)号:EP3097054A1

    公开(公告)日:2016-11-30

    申请号:EP14877063.9

    申请日:2014-12-30

    Abstract: The present invention relates to a process for the production of a zeolitic material having a BEA-type framework structure comprising YO2 and X2O3, wherein said process comprises the steps of (1) preparing a mixture comprising one or more sources for YO2 and one or more sources for X2O3; (2) crystallizing the mixture obtained in step (1); (3) subjecting the zeolitic material having a BEA-type framework structure obtained in step (2) to an ion-exchange procedure with Cu; and (4) subjecting the Cu ion-exchanged zeolitic material obtained in step (3) to an ion-exchange procedure with Fe; wherein Y is a tetravalent element, and X is a trivalent element, wherein the mixture provided in step (1) and crystallized in step (2) further comprises seed crystals comprising one or more zeolitic materials having a BEA-type framework structure, and wherein the mixture provided in step (1) and crystallized in step (2) does not contain an organotemplate as a structure-directing agent, as well as to the zeolitic material having a BEA frame work structure per se, and to its use, in particular in a method for the treatment of NOx by selective catalytic reduction (SCR).

    ORGANOTEMPLATE-FREE SYNTHETIC PROCESS FOR THE PRODUCTION OF A ZEOLITIC MATERIAL OF THE CHA-TYPE STRUCTURE
    100.
    发明公开
    ORGANOTEMPLATE-FREE SYNTHETIC PROCESS FOR THE PRODUCTION OF A ZEOLITIC MATERIAL OF THE CHA-TYPE STRUCTURE 审中-公开
    SYNTHENTISCHES过程而不有机模板剂制备具有CHA-施工沸石

    公开(公告)号:EP2776369A1

    公开(公告)日:2014-09-17

    申请号:EP12847478.0

    申请日:2012-11-09

    Applicant: BASF SE

    CPC classification number: B01J29/7015 B01J2229/186 C01B39/46

    Abstract: The present invention relates to an organotemplate-free synthetic process for the production of a zeoiitic material having a CHA-type framework structure comprising YO2, X
    2 O
    3 , and optionally comprising Z
    2 O
    5 , wherein said process comprises the steps of: (1 ) providing a mixture comprising one or more sources for YO
    2 , one or more sources for X
    2 O
    3 , and seed crystals having a CHA framework structure, wherein the CHA framework structure of the seed crystals comprises YO
    2 , X
    2 O
    3 , and optionally comprises Z2O5; and (2) crystallizing the mixture obtained in step (1 ); wherein Y is a tetravaient element, X is a trivalent element, and Z is a pentavalent element, wherein optionally one or more sources for Z
    2 O
    5 are further provided in step (1 ), and wherein if the CHA framework of the seed crystals does not contain Z
    2 O
    5 , the seed crystals then have a Y0
    2 : X
    2 O
    3 molar ratio of 5 or greater than 5.

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