PROCESS FOR PRODUCTION OF A SILICA-SUPPORTED ALKALI METAL CATALYST
    5.
    发明申请
    PROCESS FOR PRODUCTION OF A SILICA-SUPPORTED ALKALI METAL CATALYST 有权
    生产二氧化硅支持的碱金属催化剂的方法

    公开(公告)号:US20150238942A1

    公开(公告)日:2015-08-27

    申请号:US14432430

    申请日:2013-10-01

    Abstract: A process for regenerating a silica-supported depleted alkali metal catalyst is described. The level of alkali metal on the depleted catalyst is at least 0.5 mol % and the silica support is a zero-gel. The process comprises the steps of contacting the silica supported depleted alkali metal catalyst with a solution of a salt of the alkali metal in a solvent system that has a polar organic solvent as the majority component. A re-impregnated catalyst prepared by the process of the invention any comprising a silicazero-gel support and a catalytic metal selected from an alkali metal in the range 0.5-5 mol % on the catalyst, wherein the surface area of the silica support is

    Abstract translation: 描述了二氧化硅负载的贫碱金属催化剂的再生方法。 贫化催化剂上的碱金属含量至少为0.5mol%,二氧化硅载体为零凝胶。 该方法包括以下步骤:使二氧化硅负载的贫碱金属催化剂与碱金属盐的溶液在具有极性有机溶剂作为主要组分的溶剂体系中接触。 通过本发明的方法制备的再浸渍的催化剂,其任何包含硅氮烷凝胶载体和选自催化剂上0.5-5mol%范围的碱金属的催化金属,其中二氧化硅载体的表面积< 还描述了180m 2 / g。 本发明适用于制备烯属不饱和酸或酯的方法,包括使式R 1 -CH 2 -COOR 3的链烷酸或酯与甲醛或合适的甲醛源接触。

    Process for production of a silica-supported alkali metal catalyst
    10.
    发明授权
    Process for production of a silica-supported alkali metal catalyst 有权
    生产二氧化硅负载的碱金属催化剂的方法

    公开(公告)号:US09504991B2

    公开(公告)日:2016-11-29

    申请号:US14432430

    申请日:2013-10-01

    Abstract: A process for regenerating a silica-supported depleted alkali metal catalyst is described. The level of alkali metal on the depleted catalyst is at least 0.5 mol % and the silica support is a zero-gel. The process comprises the steps of contacting the silica supported depleted alkali metal catalyst with a solution of a salt of the alkali metal in a solvent system that has a polar organic solvent as the majority component. A re-impregnated catalyst prepared by the process of the invention any comprising a silica zero-gel support and a catalytic metal selected from an alkali metal in the range 0.5-5 mol % on the catalyst, wherein the surface area of the silica support is

    Abstract translation: 描述了二氧化硅负载的贫碱金属催化剂的再生方法。 贫化催化剂上的碱金属含量至少为0.5mol%,二氧化硅载体为零凝胶。 该方法包括以下步骤:使二氧化硅负载的贫碱金属催化剂与碱金属盐的溶液在具有极性有机溶剂作为主要组分的溶剂体系中接触。 通过本发明方法制备的再浸渍催化剂,其任一种包括二氧化硅零凝胶载体和选自催化剂上0.5-5mol%范围的碱金属的催化金属,其中二氧化硅载体的表面积为 还描述了<180m 2 / g。 本发明适用于制备烯属不饱和酸或酯的方法,包括使式R 1 -CH 2 -COOR 3的链烷酸或酯与甲醛或合适的甲醛源接触。

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