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    COATED CUT METAL BODIES AND PROCESSES FOR THE PRODUCTION THEREOF
    2.
    发明公开
    COATED CUT METAL BODIES AND PROCESSES FOR THE PRODUCTION THEREOF 审中-公开

    公开(公告)号：US20240149261A1

    公开(公告)日：2024-05-09

    申请号：US18283156

    申请日：2022-03-14

    Applicant: EVONIK OPERATIONS GMBH

    Inventor： Meike ROOS ,  Monika BERWEILER ,  Markus GÖTTLINGER ,  René POSS

    IPC: B01J37/00 ,  B01J25/02 ,  B01J37/08

    CPC classification number: B01J37/0027 ,  B01J25/02 ,  B01J37/08

    Abstract: The present invention relates to processes for producing cut metal bodies, comprising the providing of metal bodies, the subsequent applying of metal-containing powders, a thermal treatment for alloy formation and the splitting of the alloyed metal bodies using a process selected from the group: severing, machining with geometrically defined cutting edge and waterjet cutting. The temperature profile in the thermal treatment allows alloy formation to take place at the contact surface between metal body and metal-containing powder, but at the same time leaving unalloyed regions in the interior of the metal body. The present invention further relates to processes in which the splitting of the alloyed metal bodies is followed by a treatment with leaching agent so as to obtain catalytically active metal bodies. The use of the inventive splitting process for producing the cut metal bodies affords particularly active catalysts. The present invention further relates to the use of the catalysts obtained by the processes of the invention in chemical transformations.

    METAL FOAM BODIES AND PROCESS FOR PRODUCTION THEREOF
    4.
    发明公开
    METAL FOAM BODIES AND PROCESS FOR PRODUCTION THEREOF 审中-公开

    公开(公告)号：US20240181527A1

    公开(公告)日：2024-06-06

    申请号：US18439722

    申请日：2024-02-12

    Applicant: EVONIK OPERATIONS GMBH

    Inventor： René POSS ,  Monika BERWEILER ,  Meike ROOS

    IPC: B22F3/11 ,  B22F1/05 ,  B22F3/24

    CPC classification number: B22F3/1137 ,  B22F1/05 ,  B22F3/1146 ,  B22F2003/242 ,  B22F2003/248 ,  B22F2301/052 ,  B22F2303/30

    Abstract: The present invention relates to processes for producing metal foam bodies, in which metal-containing powders that may comprise aluminium and chromium or molybdenum are applied to metal foam bodies that may comprise nickel, cobalt, copper and iron and then treated thermally, wherein the highest temperature in the thermal treatment of the metal foam bodies is in the range from 680 to 715° C., and wherein the total duration of the thermal treatment within the temperature range from 680 to 715° C. is between 5 and 240 seconds. Following this method of thermal treatment can achieve alloy formation at the contact surface between metal foam body and metal-containing powder, but simultaneously leave unalloyed regions within the metal foam. The present invention further comprises processes comprising the treatment of the alloyed metal foam bodies with basic solution. The present invention further comprises the metal foam bodies obtainable by these processes, which find use, for example, as support and structure components and in catalyst technology.

    METAL-FOAM BODY AND METHOD FOR THE PRODUCTION THEREOF AND THE USE THEREOF AS A CATALYST
    5.
    发明公开
    METAL-FOAM BODY AND METHOD FOR THE PRODUCTION THEREOF AND THE USE THEREOF AS A CATALYST 审中-公开

    公开(公告)号：US20230338932A2

    公开(公告)日：2023-10-26

    申请号：US17762848

    申请日：2020-09-25

    Applicant: EVONIK OPERATIONS GMBH

    Inventor： René POSS ,  Monika BERWEILER ,  Meike ROOS

    IPC: B01J23/755 ,  B01J35/10 ,  B01J37/00 ,  B01J21/02 ,  B01J37/06

    CPC classification number: B01J23/755 ,  B01J35/1028 ,  B01J37/0018 ,  B01J21/02 ,  B01J37/06

    Abstract: The invention relates to a method for producing a metal-foam body, comprising the steps of (a) providing a metal-foam body A, which consists of nickel, cobalt, copper, or alloys or combinations thereof, (b) applying an aluminum-containing material MP to metal-foam body A so as to obtain metal-foam body AX, (c) thermally treating of metal-foam body AX, with the exclusion of oxygen, to achieve the formation of an alloy between the metallic components of metal-foam body A and the aluminum-containing material MP so as to obtain metal-foam body B, wherein the duration of the thermal treatment is chosen in dependence on the temperature of the thermal treatment and the temperature of the thermal treatment is chosen in dependence on the thickness of the metal-foam body AX. The invention also relates to the metal-foam bodies obtainable by the methods according to the invention and to the use thereof as catalysts for chemical transformations.

    METAL FOAM SUPPORTED CATALYST AND METHOD FOR THE PRODUCTION THEREOF
    6.
    发明申请
    METAL FOAM SUPPORTED CATALYST AND METHOD FOR THE PRODUCTION THEREOF 有权

    公开(公告)号：US20220395816A1

    公开(公告)日：2022-12-15

    申请号：US17762732

    申请日：2020-09-25

    Applicant: EVONIK OPERATIONS GMBH

    Inventor： René POSS ,  Meike ROOS ,  Monika BERWEILER ,  Maximilian GLASER

    IPC: B01J23/755 ,  B01J21/04 ,  B01J35/04 ,  B01J37/02 ,  B22F3/11 ,  B22F7/04 ,  B22F3/24

    Abstract: The invention relates to methods for producing supported catalysts, comprising: providing a metal foam element A made of nickel; applying an aluminum-containing powder MP to metal foam element A, such that metal foam element AX is obtained; thermally treating metal foam element AX in order to form an alloy between metal foam element A and the aluminum-containing powder MP, such that metal foam element B is obtained; oxidatively treating metal foam element B, such that metal foam element C is obtained; and applying a catalytically active layer, comprising at least one carrier oxide and at least one catalytically active component, to at least one part of the surface of metal foam element C, such that a supported catalyst is obtained. The invention also relates to the supported catalysts obtained according to the method, and to the use thereof in chemical transformations.

    METAL FOAM ELEMENT CONTAINING COBALT AND METHOD FOR PRODUCING SAME
    7.
    发明申请
    METAL FOAM ELEMENT CONTAINING COBALT AND METHOD FOR PRODUCING SAME 有权

    公开(公告)号：US20220362757A1

    公开(公告)日：2022-11-17

    申请号：US17762730

    申请日：2020-09-25

    Applicant: EVONIK OPERATIONS GMBH

    Inventor： René POSS ,  Meike ROOS ,  Monika BERWEILER ,  Maximilian GLASER

    IPC: B01J37/02 ,  B01J23/755 ,  B01J37/14 ,  B01J35/04 ,  B01J37/08 ,  B01J23/75 ,  B01J21/04

    Abstract: The present invention relates to a method for producing supported catalysts, comprising: providing a metal foam element A, which consists of metallic cobalt, an alloy of nickel and cobalt, or an arrangement of layers of nickel and cobalt, lying one over the other; applying an aluminum-containing powder MP to metal foam element A in order to obtain metal foam element AX; thermally treating metal foam element AX to achieve alloy formation between metal foam element A and aluminum-containing powder MP, in order to obtain metal foam element B; oxidatively treating metal foam element B, in order to obtain metal foam element C; and applying a catalytically active layer, comprising at least one support oxide and at least one catalytically active component, to at least part of the surface of metal foam element C, in order to obtain a supported catalyst. The present invention further relates to the supported catalysts that can be obtained using the method and to the use of said supported catalysts in chemical transformations.

    METAL BODIES AND METHOD FOR PRODUCTION THEREOF
    10.
    发明申请
    METAL BODIES AND METHOD FOR PRODUCTION THEREOF 有权

    公开(公告)号：US20220387986A1

    公开(公告)日：2022-12-08

    申请号：US17762986

    申请日：2020-09-25

    Applicant: EVONIK OPERATIONS GMBH

    Inventor： René POSS ,  Monika BERWEILER ,  Meike ROOS

    IPC: B01J37/02 ,  B01J37/00 ,  B01J37/08 ,  B01J23/72 ,  B01J23/745 ,  B01J23/75 ,  B01J23/755 ,  B01J35/04 ,  B01J35/10 ,  B22F3/10 ,  B22F3/11 ,  B22F3/24 ,  B22F7/04 ,  B22F7/06

    Abstract: The present invention relates to methods for producing coated metal bodies by applying a metal powder composition to a metal body, such that a coated metal body is obtained, the coating of which contains one or more wax components; heating the coated metal body to the melting temperature of at least one of the wax components and subsequent cooling to room temperature, such that a coated metal body is obtained; and thermally treating the coated metal body in order to achieve alloy formation between metal portions of metal body and metal powder composition, wherein the metal body comprises nickel, cobalt, copper and/or iron and the metal powder composition comprises a metal component in powder form, which contains aluminium, silicon or magnesium in elemental or alloyed form. By melting and cooling the wax, the method makes metal bodies having a more uniform alloy coverage accessible. The invention furthermore relates to methods wherein the metal body is subsequently treated with a basic solution. The present invention additionally comprises the metal bodies obtainable by the method according to the invention, which find application as load-bearing and structural components, for example, and in catalyst converter technology.

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