BIMETAL-EXCHANGED ZEOLITE BETA FROM ORGANOTEMPLATE-FREE SYNTHESIS AND USE THEREOF IN THE SELECTIVE CATALYTIC REDUCTION OF NOx
    1.
    发明申请
    BIMETAL-EXCHANGED ZEOLITE BETA FROM ORGANOTEMPLATE-FREE SYNTHESIS AND USE THEREOF IN THE SELECTIVE CATALYTIC REDUCTION OF NOx 审中-公开
    在无机合成中的双官能交换的沸石BET和其在选择性催化还原NOx中的用途

    公开(公告)号:US20160325228A1

    公开(公告)日:2016-11-10

    申请号:US15109601

    申请日:2014-12-30

    摘要: 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).

    摘要翻译: 本发明涉及生产具有包含YO 2和X 2 O 3的BEA型骨架结构的沸石材料的方法,其中所述方法包括以下步骤:(1)制备包含一种或多种YO 2和一种或多种来源的混合物 X2O3的来源; (2)使步骤(1)中获得的混合物结晶; (3)将具有步骤(2)中获得的BEA型骨架结构的沸石材料与Cu进行离子交换程序; 和(4)使步骤(3)中获得的Cu离子交换的沸石材料与Fe的离子交换程序; 其中Y是四价元素,X是三价元素,其中在步骤(1)中提供并在步骤(2)中结晶的混合物还包含包含一种或多种具有BEA型骨架结构的沸石材料的晶种,其中 在步骤(1)中提供并在步骤(2)中结晶的混合物不含作为结构导向剂的有机模板,以及具有BEA框架工作结构本身的沸石材料,特别是其用途 在通过选择性催化还原(SCR)处理NOx的方法中。