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669 条记录 (耗时 0.053 秒)

    Contactless leveling of a washcoat suspension
    1.
    发明授权
    Contactless leveling of a washcoat suspension 有权

    公开(公告)号：US11590484B2

    公开(公告)日：2023-02-28

    申请号：US16628308

    申请日：2018-07-05

    申请人： UMICORE AG & CO. KG

    发明人： Juergen Koch ,  Astrid Mueller

    IPC分类号： B01J35/04 ,  B01J37/02 ,  B01D53/94 ,  B01J35/00

    摘要： A process for coating substrates of motor vehicle exhaust gas catalysts is described, and includes steps of applying a suspension (e.g., washcoat) to a substrate, allowing a shear force to act on the applied washcoat, as in pressure transmitted by gas (e.g., air), and then sucking and/or pressing the washcoat into the substrate. The process in inclusive of providing the suspension (washcoat) containing the catalytic material from above in a metered charge process. An apparatus for carrying out the noted process steps is also featured.

    METHOD FOR PRODUCING AQUEOUS PREPARATIONS OF COMPLEXES OF PLATINUM GROUP METALS
    3.
    发明申请
    METHOD FOR PRODUCING AQUEOUS PREPARATIONS OF COMPLEXES OF PLATINUM GROUP METALS 有权

    公开(公告)号：US20220340608A1

    公开(公告)日：2022-10-27

    申请号：US17858256

    申请日：2022-07-06

    申请人： Umicore AG & Co. KG

    发明人： Eileen WOERNER ,  Ralf KARCH ,  Andreas RIVAS-NASS ,  Angelino DOPPIU

    IPC分类号： C07F15/00

    摘要： The invention relates to a method for producing aqueous preparations of complexes of platinum group metals (PGM) Pt, Pd, Rh and Ir having the general formula [MA/MB/MC (L)a (H2O)b (O2−)c(OH−)d](OH—)e(H+)f, wherein MA=PtII or PdII, MB=PtIV, MC=Rh or Ir, L is a neutral monodentate or bidentate donor ligand, and a is an integer between 1 and 4 (or 2) and/or between 1 and 6 (or 3), b is an integer between 0 and 3 (or 5), c is an integer between 0 and 3 (or 4), d is an integer between 0 and 3 (or 5), e is an integer between 0 and 2 (or 3 or 4) and f is an integer between 0 and 4 (or 5). In the method according to the invention, the hydroxo complexes H2Pd(OH)4 (in the case of MA=PdII), H2Pt(OH)6 (in the case of MA=PtII and MB=PtIV) or H3MC(OH)6 (for MC=RhIII IrIII) are converted in the presence of the donor ligands, wherein at least one hydroxo group of the hydro complex is exchanged. Preferably, the reaction occurs at temperatures in the range of 40 to 110° C. with a reaction time of between 2 and 24 hours, wherein, where MA=PtII, the conversion additionally occurs in the presence of a reduction agent. The method optionally further comprises an exchange of OH anions bound outside of the complex sphere with other anions (e.g. hydrogen carbonate or carbonate anions). The aqueous preparations contain PGM complexes such as [Pt(en)2](OH)2, [Pt(EA)4](OH)2 or [Rh(NH3)6](OH)3 and are used to produce electroplating baths, heterogeneous catalysts or metal powders, for example.

    Method for producing aqueous preparations of complexes of platinum group metals
    6.
    发明授权
    Method for producing aqueous preparations of complexes of platinum group metals 有权

    公开(公告)号：US11407776B2

    公开(公告)日：2022-08-09

    申请号：US17181374

    申请日：2021-02-22

    申请人： Umicore AG & Co. KG

    发明人： Eileen Woerner ,  Ralf Karch ,  Andreas Rivas-Nass ,  Angelino Doppiu

    IPC分类号： C07F15/00

    摘要： The invention relates to a method for producing aqueous preparations of complexes of platinum group metals (PGM) Pt, Pd, Rh and Ir having the general formula [MA/MB/MC(L)a (H2O)b (O2—)c(OH−)d](OH—)e(H+)f, wherein MA=PtII or PdII, MB=PtIV, MC=Rh or Ir, L is a neutral monodentate or bidentate donor ligand, and a is an integer between 1 and 4 (or 2) and/or between 1 and 6 (or 3), b is an integer between 0 and 3 (or 5), c is an integer between 0 and 3 (or 4), d is an integer between 0 and 3 (or 5), e is an integer between 0 and 2 (or 3 or 4) and f is an integer between 0 and 4 (or 5). In the method according to the invention, the hydroxo complexes H2Pd(OH)4 (in the case of MA=PdII), H2Pt(OH)6 (in the case of MA=PtII and MB=PtIV) or H3MC(OH)6 (for MC=RhIII IrIII) are converted in the presence of the donor ligands, wherein at least one hydroxo group of the hydro complex is exchanged. Preferably, the reaction occurs at temperatures in the range of 40 to 110° C. with a reaction time of between 2 and 24 hours, wherein, where MA=PtII, the conversion additionally occurs in the presence of a reduction agent. The method optionally further comprises an exchange of OH anions bound outside of the complex sphere with other anions (e.g. hydrogen carbonate or carbonate anions). The aqueous preparations contain PGM complexes such as [Pt(en)2](OH)2, [Pt(EA)4](OH)2 or [Rh(NH3)6](OH)3 and are used to produce electroplating baths, heterogeneous catalysts or metal powders, for example.