CATALYST FOR HYDROGEN PEROXIDE ACTIVATION

    公开(公告)号:US20250025864A1

    公开(公告)日:2025-01-23

    申请号:US18713203

    申请日:2022-11-29

    Applicant: BASF SE

    Abstract: The present invention relates to a catalyst for hydrogen peroxide activation, wherein the catalyst comprises Ti, Si, and O, wherein the catalyst displays a water adsorption (W), a concentration (C) of bridging μ2 η2-peroxo species per Ti in the H2O2-activated catalyst as determined by quantitative 17O NMR spectroscopy, and a specific activation factor (A) according to formula I, wherein in accordance with formula I, the activation factor is the multiplication product of the water adsorption and the concentration of bridging μ2 η2-peroxo species per Ti in the H2O2-activated catalyst: A=W×C  (I). The present invention further relates to a method for the preparation of a catalyst molding as well as to a catalyst molding comprising a catalyst for hydrogen peroxide activation obtainable or obtained by said process. Yet further, the present invention relates to a process for the activation of hydrogen peroxide, and to the use of the inventive catalyst or of the inventive catalyst molding in a reaction involving C—C bond formation and/or conversion.

    SHUTDOWN METHOD FOR A PROCESS FOR PREPARING AN OLEFIN OXIDE

    公开(公告)号:US20240279194A1

    公开(公告)日:2024-08-22

    申请号:US18569645

    申请日:2022-06-14

    CPC classification number: C07D303/04

    Abstract: In a first aspect, the present invention relates to a shutdown method for a process for preparing an olefin oxide comprising a normal run stage, wherein the normal run stage comprises providing olefin, hydrogen peroxide and organic solvent into an epoxidation zone comprising an heterogeneous epoxidation catalyst, so that a reaction mixture comprising olefin, hydrogen peroxide and organic solvent is formed and subjecting the reaction mixture to epoxidation reaction conditions in the epoxidation zone, thereby obtaining a mixture comprising olefin oxide and organic solvent; wherein the shutdown method comprises (a) providing olefin and organic solvent for a period of time t1 to the epoxidation zone, so that a mixture is formed, which is essentially free of hydrogen peroxide; (b) contacting the mixture from (a) over t1 under epoxidation reaction conditions in the epoxidation zone with the heterogeneous epoxidation catalyst; (c) removing during t1 an effluent stream from the epoxidation zone, the effluent stream comprising olefin and organic solvent. In a second aspect, the present invention relates to a process for preparing an olefin oxide comprising a normal run stage and a shutdown stage, wherein the normal run stage comprises (A) providing olefin, hydrogen peroxide, water and organic solvent into an epoxidation zone comprising an heterogeneous epoxidation catalyst, so that a reaction mixture comprising olefin, hydrogen peroxide, water and organic solvent is formed; (B) subjecting the reaction mixture from (I) to epoxidation reaction conditions in the epoxidation zone, thereby obtaining a mixture comprising olefin oxide, water and organic solvent; (C) removing an effluent stream from the epoxidation zone, comprising olefin oxide, water and organic solvent; wherein the shutdown stage comprises steps (a), (b) and (c) as described with respect to the first aspect.

    PROCESS FOR THE ALKYLATION OF ALIPHATIC ORGANIC COMPOUNDS

    公开(公告)号:US20200308083A1

    公开(公告)日:2020-10-01

    申请号:US16765620

    申请日:2018-12-20

    Applicant: BASF SE

    Abstract: Disclosed is a process for the alkylation of an aliphatic organic compound comprising: (a) providing a catalyst comprising one or more zeolitic materials having a BEA framework structure, wherein the BEA framework structure comprises YO2 and optionally comprises X2O3, wherein Y is a tetravalent element, and X is a trivalent element, (b) contacting the catalyst with one or more aliphatic organic compounds in the presence of one or more alkylating agents in one or more reactors for obtaining one or more alkylated organic compounds, wherein the one or more zeolitic materials are obtainable from a synthetic process which does not employ an organotemplate as structure directing agent.

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