Catalyst composition
    34.
    发明授权

    公开(公告)号:US07504525B2

    公开(公告)日:2009-03-17

    申请号:US10935841

    申请日:2004-09-08

    Abstract: There is provided a catalyst carrier comprising a refractory inorganic material having a sodium solubilization rate no greater than 5 ppmw/5 minutes. There is further a catalyst comprising a refractory inorganic material carrier having a sodium solubilization rate no greater than 5 ppmw/5 minutes; and one or more catalytically reactive metals deposited on said carrier. There is also provided a catalyst suitable for the vapor phase production of alkylene oxide from olefins and oxygen comprising an alumina-based carrier having a sodium solubilization rate no greater than 5 ppmw/5 minutes; and catalytically reactive silver deposited on said carrier.

    Method for the start-up of an epoxidation process and a process for the epoxidation of an olefin
    36.
    发明授权
    Method for the start-up of an epoxidation process and a process for the epoxidation of an olefin 有权
    环氧化方法启动方法和烯烃环氧化方法

    公开(公告)号:US07102022B2

    公开(公告)日:2006-09-05

    申请号:US10607346

    申请日:2003-06-26

    CPC classification number: C07D301/10

    Abstract: A method for the start-up of a process for the epoxidation of an olefin, which method comprises contacting a catalyst bed comprising a silver-based highly selective epoxidation catalyst, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a temperature of the catalyst bed above 260° C. for a period of at most 150 hours, and subsequently decreasing the temperature of the catalyst bed to a value of at most 260° C., and a process for the epoxidation of an olefin, which process, comprises contacting a catalyst bed comprising a silver-based highly selective epoxidation catalyst, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a temperature of the catalyst bed above 260° C. for a period of at most 150 hours, and subsequently decreasing the-temperature of the catalyst bed to a value of at most 260° C. and contacting the catalyst with the feed comprising the olefin and oxygen.

    Abstract translation: 烯烃环氧化方法的启动方法,该方法包括将包含银基高选择性环氧化催化剂的催化剂床或包含阳离子形式的银的催化剂前体与进料 在催化剂床的温度高于260℃的温度下包含氧,时间为至多150小时,随后将催化剂床的温度降至至多260℃的值,以及环氧化方法 该方法包括使包含银基高选择性环氧化催化剂的催化剂床或包含阳离子形式的银的催化剂前体与包含氧的进料在催化剂床的温度高于260℃的温度下接触 最多150小时的时间,随后将催化剂床的温度降至至多260℃,并将催化剂与包含烯烃和氧气的进料接触。

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