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    CHA zeolite material and related method of synthesis
    35.
    发明授权
    CHA zeolite material and related method of synthesis 有权

    公开(公告)号：US11267717B2

    公开(公告)日：2022-03-08

    申请号：US16982473

    申请日：2019-03-21

    Applicant: BASF Corporation

    Inventor： Ahmad Moini ,  Eduard L. Kunkes ,  Maritza I. Ortega ,  William M. Jaglowski

    IPC: B01J29/70 ,  B01J35/04 ,  B01J35/10 ,  C01B39/02 ,  C01B39/48 ,  F01N3/20

    Abstract: The invention provides a method of synthesizing a zeolite having the CHA crystalline framework, the method including forming a reaction mixture comprising an alumina source comprising a zeolite having an FAU crystalline framework, a silica source, and an organic structure directing agent, the reaction mixture—having a combined molar ratio of M/Si+R/Si higher than the molar ratio OH/Si, wherein M is moles of alkali metal and R is moles of organic structure directing agent; and crystallizing the reaction mixture to form a product zeolite having the CHA crystalline framework, wherein the product zeolite has a mesopore surface area (MSA) of less than about 25 m2/g. The invention also includes catalyst articles made using the product zeolite, exhaust gas treatment systems including the catalyst articles, and methods of treating exhaust gas using the catalyst articles.

    Process for preparing a zeolitic material comprising a metal M and having framework type AEI
    37.
    发明授权
    Process for preparing a zeolitic material comprising a metal M and having framework type AEI 有权

    公开(公告)号：US11148954B2

    公开(公告)日：2021-10-19

    申请号：US16605069

    申请日：2018-05-15

    Applicant: BASF Corporation

    Inventor： Ahmad Moini ,  Robert McGuire ,  Ulrich Mueller

    IPC: C01B39/48 ,  B01J29/70 ,  B01J29/76 ,  B01J37/08 ,  C01B39/02

    Abstract: A process for preparing a zeolitic material comprising a metal M, having framework type AEI, and having a framework structure which comprises a tetravalent element Y, a trivalent element X, and oxygen, said process comprising (i) providing a zeolitic material comprising the metal M, having a framework type other than AEI, and having a framework structure comprising the trivalent element X, and oxygen; (ii) preparing a synthesis mixture comprising the zeolitic material provided in (i), water, a source of the tetravalent element Y, and an AEI framework structure directing agent; (iii) subjecting the synthesis mixture prepared in (ii) to hydrothermal synthesis conditions comprising heating the synthesis mixture to a temperature in the range of from 100 to 200° C. and keeping the synthesis mixture at a temperature in this range under autogenous pressure, obtaining the zeolitic material having framework type AEI; wherein Y is one or more of Si, Ge, Sn, Ti, Zr; wherein X is one or more of Al, B, Ga, In; wherein M is a transition metal of groups 7 to 12 of the periodic table of elements.

    CHA ZEOLITE MATERIAL AND RELATED METHOD OF SYNTHESIS
    38.
    发明申请
    CHA ZEOLITE MATERIAL AND RELATED METHOD OF SYNTHESIS 有权

    公开(公告)号：US20210171357A1

    公开(公告)日：2021-06-10

    申请号：US16982473

    申请日：2019-03-21

    Applicant: BASF Corporation

    Inventor： Ahmad Moini ,  Eduard L. Kunkes ,  Maritza I. Ortega ,  William M. Jaglowski

    IPC: C01B39/48 ,  B01J29/70 ,  B01J35/10 ,  B01J35/04 ,  F01N3/20 ,  C01B39/02

    Abstract: The invention provides a method of synthesizing a zeolite having the CHA crystalline framework, the method including forming a reaction mixture comprising an alumina source comprising a zeolite having an FAU crystalline framework, a silica source, and an organic structure directing agent, the reaction mixture—having a combined molar ratio of M/Si+R/Si higher than the molar ratio OH/Si, wherein M is moles of alkali metal and R is moles of organic structure directing agent; and crystallizing the reaction mixture to form a product zeolite having the CHA crystalline framework, wherein the product zeolite has a mesopore surface area (MSA) of less than about 25 m2/g. The invention also includes catalyst articles made using the product zeolite, exhaust gas treatment systems including the catalyst articles, and methods of treating exhaust gas using the catalyst articles.

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