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    Ruthenium-based metathesis catalysts, precursors for their preparation and their use
    21.
    发明授权
    Ruthenium-based metathesis catalysts, precursors for their preparation and their use 有权

    公开(公告)号：US11241680B2

    公开(公告)日：2022-02-08

    申请号：US16014615

    申请日：2018-06-21

    申请人： Umicore AG & Co. KG

    发明人： Herbert Plenio ,  Pavlo Kos ,  Roman Savka

    IPC分类号： B01J31/32 ,  B01J31/22 ,  C07F15/00 ,  C07C217/90 ,  C07C43/29 ,  C07C5/31 ,  C07C43/275

    摘要： The invention is directed to ruthenium-based metathesis catalysts of the Grubbs-Hoveyda type. The new 2-aryloxy-substituted ruthenium catalysts described herein reveal rapid initiation behavior. Further, the corresponding styrene-based precursor compounds are disclosed. The catalysts are prepared in a cross-metathesis reaction starting from styrene-based precursors which can be prepared in a cost-effective manner.
    The new Grubbs-Hoveyda type catalysts are suitable to catalyze ring-closing metathesis (RCM), cross metathesis (CM) and ring-opening metathesis polymerization (ROMP). Low catalyst loadings are necessary to convert a wide range of substrates including more complex and critical substrates via metathesis reactions at low to moderate temperatures in high yields within short reaction times.

    EXHAUST GAS PURIFICATION SYSTEM FOR A GASOLINE ENGINE
    22.
    发明申请
    EXHAUST GAS PURIFICATION SYSTEM FOR A GASOLINE ENGINE 有权

    公开(公告)号：US20220003139A1

    公开(公告)日：2022-01-06

    申请号：US17283335

    申请日：2019-10-17

    申请人： UMICORE AG & CO. KG

    发明人： Jan SCHOENHABER ,  Joerg-Michael RICHTER ,  Carolin BRAUN

    IPC分类号： F01N3/035 ,  F01N3/10

    摘要： Subject of the invention is an exhaust gas purification system for a gasoline engine, comprising in consecutive order the following devices:
    a first three-way-catalyst (TWC1), a gasoline particulate filter (GPF) and a second three-way-catalyst (TWC2),
    wherein the platinum-group metal concentration (PGM) of the GPF is at least 40% greater than the PGM of the TWC2, wherein the PGM is determined in g/ft3 of the volume of the device,
    The invention also relates to methods in which the system is used and uses of the system.

    EXHAUST GAS PURIFICATION SYSTEM FOR A GASOLINE ENGINE
    24.
    发明申请
    EXHAUST GAS PURIFICATION SYSTEM FOR A GASOLINE ENGINE 有权

    公开(公告)号：US20210379529A1

    公开(公告)日：2021-12-09

    申请号：US17283743

    申请日：2019-10-17

    申请人： UMICORE AG & CO. KG

    发明人： Jan SCHOENHABER ,  Joerg-Michael RICHTER ,  Carolin BRAUN

    IPC分类号： B01D53/94 ,  F01N3/035 ,  F01N3/10

    摘要： Subject of the invention is an exhaust gas purification system for a gasoline engine, comprising in consecutive order the following devices: a first three-way-catalyst (TWC1), a gasoline particulate filter (GPF) and a second three-way-catalyst (TWC2), wherein the oxygen storage capacity (OSC) of the TWC2 is greater than the OSC of the GPF, wherein the OSC is determined in mg/l of the volume of the device. The invention also relates to methods in which the system is used and uses of the system.

    Copper containing MOZ zeolite for selective NOx reduction catalysis
    25.
    发明授权
    Copper containing MOZ zeolite for selective NOx reduction catalysis 有权

    公开(公告)号：US11154846B2

    公开(公告)日：2021-10-26

    申请号：US16479593

    申请日：2018-02-09

    申请人： Umicore AG & Co. KG

    发明人： Michiel De Prins ,  Johan Adriaan Martens ,  Elke Jane June Verheyen ,  Stef Jules Peter Kerkhofs ,  Sreeprasanth Pulinthanathu Sree ,  Frank-Walter Schuetze

    IPC分类号： B01J29/06 ,  B01J29/76 ,  B01D53/94 ,  B01J37/08 ,  B01J37/30 ,  C01B39/48 ,  F01N3/20

    摘要： The present invention relates to crystalline aluminosilicate comprising a MOZ framework type material. The MOZ framework type material comprises between 0.1 and 12.5 wt-% of copper, calculated as CuO, and one or more alkali and alkaline earth metal cations in an amount of 0.3 to 9 wt.-%, calculated as pure metals. The process for making the copper containing MOZ type zeolites comprises a) preparing a first aqueous reaction mixture comprising a silica source and potassium hydroxide, b) preparing a second reaction mixture comprising an alumina source, potassium hydroxide and a structure-directing agent selected from N,N-1,4-dimethyl-1,4-diazabicyclo-[2.2.2]octane difluoride, dichloride, dibromide, diiodide or dihydroxide, c) combining the two aqueous reaction mixtures, d) aging the combined reaction mixtures, e) heating the combined reaction mixtures, e) recovering, washing and drying the zeolite obtained thereof, g) calcining the zeolite, f) introducing copper, and i) washing and drying the copper containing MOZ type zeolite. Furthermore, the present invention discloses a washcoat comprising the copper containing MOZ framework type material, an SCR catalyst comprising said copper containing MOZ framework type material, and an exhaust gas purification system containing said SCR catalyst.

    Stable CHA Zeolites
    30.
    发明申请
    Stable CHA Zeolites 有权

    公开(公告)号：US20210138441A1

    公开(公告)日：2021-05-13

    申请号：US17053195

    申请日：2018-05-13

    申请人： Umicore AG & Co. KG

    发明人： Elke Jane June Verheyen ,  Sreeprasanth Pulinthanathu Sree ,  Sam Smet ,  Andreas Jan Hoffmann ,  Michiel De Prins ,  Johan Adriaan Martens ,  Leen Van Tendeloo ,  Frank-Walter Schuetze

    IPC分类号： B01J29/74 ,  F01N3/20 ,  B01J37/08

    摘要： The present invention provides hydrothermally stable crystalline aluminosilicate zeolites with a CHA framework type, wherein the zeolite has a total proton content of less than 2 mmol per gram. The zeolite may comprise 0.1 to 10 wt.-% of at least one transition metal, calculated as the respective oxide and based on the total weight of the zeolite. It may furthermore comprise at least one alkali or alkaline earth metal in a concentration of 0 to 2 wt.-%, calculated as the respective metal and based on the total weight of the zeolite. The invention furthermore provides a one-pot synthesis method for making the alumino-silicate zeolites with a CHA framework type. An aqueous reaction mixture comprising a tetraethylammonium compound, a silica source, at least one alkali or alkaline earth metal hydroxide, a zeolite of the faujasite framework type and Cu-tetraethylenepentamine are mixed, homogenized and heated, and finally, the product is recovered. The novel hydrothermally stable zeolites comprising a CHA framework type are suitable as catalytically active materials for the selective catalytic reduction of nitrogen oxides by reaction with NH3 as reductant (NH3-SCR) wherein said hydrothermally stable zeolites are used.