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9 条记录 (耗时 0.016 秒)

    ALUMINOSILICATE ZEOLITE INTERGROWTHS
    1.
    发明申请
    ALUMINOSILICATE ZEOLITE INTERGROWTHS 有权

    公开(公告)号：US20210370280A1

    公开(公告)日：2021-12-02

    申请号：US17309167

    申请日：2019-11-01

    申请人： BASF Corporation

    发明人： Eduard KUNKES ,  Ahmad MOINI ,  Maritza ORTEGA

    IPC分类号： B01J29/76 ,  F01N3/20 ,  F01N3/08 ,  C01B39/46 ,  B01J35/10 ,  B01J6/00 ,  B01J37/04 ,  B01J37/08

    摘要： The present disclosure provides a method of making zeolite intergrowths. In one embodiment, the present disclosure provides a method of making an AEI-based material, including the steps of: preparing a mixture of water, an alumina source, a silica source, a CHA structure directing agent, and an AEI structure directing agent, wherein the molar ratio of the CHA structure directing agent to the AEI structure directing agent is from about 1:1 to about 1:15; heating the mixture at a temperature sufficient to promote formation of crystals; and calcining the crystals at a temperature of from about 450° C. to about 750° C. to obtain a product, wherein no halide-containing reagent is employed. The AEI-based materials of the present disclosure may find particular use in selective catalytic reduction of NOx in exhaust gas streams.

    A PROCESS FOR PREPARING A ZEOLITIC MATERIAL COMPRISING A METAL M AND HAVING FRAMEWORK TYPE AEI
    2.
    发明申请
    A PROCESS FOR PREPARING A ZEOLITIC MATERIAL COMPRISING A METAL M AND HAVING FRAMEWORK TYPE AEI 有权

    公开(公告)号：US20210017033A1

    公开(公告)日：2021-01-21

    申请号：US16605069

    申请日：2018-05-15

    申请人： BASF Corporation

    发明人： Ahmad MOINI ,  Robert McGUIRE ,  Ulrich MUELLER

    IPC分类号： C01B39/48 ,  B01J29/76 ,  B01J37/08

    摘要： A process for preparing a zeolitic material comprising a metal M, having framework type AEI, and having a framework in structure which comprises a tetravalent element Y, a trivalent element X, and oxygen, said process comprising (i) providing a zeolitic of 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.

    SELECTIVE CATALYTIC REDUCTION ARTICLES AND SYSTEMS
    9.
    发明申请
    SELECTIVE CATALYTIC REDUCTION ARTICLES AND SYSTEMS 有权

    公开(公告)号：US20210229079A1

    公开(公告)日：2021-07-29

    申请号：US17206963

    申请日：2021-03-19

    申请人： BASF Corporation

    发明人： Wen-Mei XUE ,  Xiaofan YANG ,  Haiyang ZHU ,  Stanley ROTH ,  Jeff YANG ,  Subramanian PRASAD ,  Ahmad MOINI

    IPC分类号： B01J29/04 ,  B01D53/94 ,  B01J23/42 ,  B01J35/04 ,  G01N21/3563

    摘要： The present disclosure relates to copper-containing molecular sieve catalysts that are highly suitable for the treatment of exhaust containing NOx pollutants. The copper-containing molecular sieve catalysts contain ion-exchanged copper as Cu+2 and Cu(OH)+1, and DRIFT spectroscopy of the catalyst exhibits perturbed T-O-T vibrational peaks corresponding to the Cu+2 and Cu(OH)+1. In spectra taken of the catalytic materials, a ratio of the Cu+2 to the Cu(OH)+1 peak integration areas preferably can be ≥1. The copper-containing molecular sieve catalysts are aging stable such that the peak integration area percentage of the Cu+2 peak (area Cu+2/(area Cu+2+area Cu(OH)+1)) increases by ≤20% upon aging at 800° C. for 16 hours in the presence of 10% H2O/air, compared to the fresh state.