知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.016 秒)

    Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin
    2.
    发明授权
    Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin 有权
    提高催化剂选择性的方法和烯烃环氧化方法

    公开(公告)号：US08148555B2

    公开(公告)日：2012-04-03

    申请号：US12337923

    申请日：2008-12-18

    申请人： John Robert Lockemeyer ,  Randall Clayton Yeates ,  Donald Reinalda

    发明人： John Robert Lockemeyer ,  Randall Clayton Yeates ,  Donald Reinalda

    IPC分类号： C07D301/10

    CPC分类号： C07D301/10

    摘要： A method for improving the selectivity of a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, which method comprises contacting the catalyst, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C.; and a process for the epoxidation of an olefin, which process comprises contacting a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C. and contacting the catalyst with the feed comprising the olefin and oxygen.

    摘要翻译： 一种用于提高载体的高选择性环氧化催化剂的选择性的方法，该催化剂包含银量至多为0.17g / m 2表面积的载体，该方法包括使催化剂或包含阳离子型银的催化剂的前体 ，在催化剂温度高于250℃的情况下使用包含氧的进料持续长达150小时，随后将催化剂温度降至至多250℃的值。 和烯烃的环氧化方法，该方法包括使包含银的负载型高选择性环氧化催化剂以至少0.17g / m 2表面积的载体或包含阳离子形式的银的催化剂前体 使用在催化剂温度高于250℃的氧气的进料，持续长达150小时，随后将催化剂温度降至至多250℃，并将催化剂与包含烯烃的进料接触 和氧气。

    Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin
    4.
    发明授权
    Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin 有权
    提高催化剂选择性的方法和烯烃环氧化方法

    公开(公告)号：US07485597B2

    公开(公告)日：2009-02-03

    申请号：US10606440

    申请日：2003-06-26

    申请人： John Robert Lockemeyer ,  Randall Clayton Yeates ,  Donald Reinalda

    发明人： John Robert Lockemeyer ,  Randall Clayton Yeates ,  Donald Reinalda

    IPC分类号： B01J21/02 ,  B01J27/00 ,  B01J27/198 ,  B01J27/188 ,  B01J27/19 ,  B01J27/192 ,  B01J27/185 ,  B01J27/182 ,  B01J27/057 ,  B01J27/02 ,  B01J27/047 ,  B01J23/00 ,  B01J23/48 ,  B01J23/50

    CPC分类号： B01J37/0213 ,  B01J23/50 ,  B01J23/688 ,  B01J37/14 ,  C07D301/10

    摘要： A method for improving the selectivity of a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, which method comprises contacting the catalyst, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C.; and a process for the epoxidation of an olefin, which process comprises contacting a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C. and contacting the catalyst with the feed comprising the olefin and oxygen.

    摘要翻译： 一种用于提高载体的高选择性环氧化催化剂的选择性的方法，该催化剂包含银量至多为0.17g / m 2表面积的载体，该方法包括使催化剂或包含阳离子型银的催化剂的前体 ，在催化剂温度高于250℃的情况下使用包含氧的进料持续长达150小时，随后将催化剂温度降至至多250℃的值。 和烯烃的环氧化方法，该方法包括使包含银的负载型高选择性环氧化催化剂以至少0.17g / m 2表面积的载体或包含阳离子形式的银的催化剂前体 使用在催化剂温度高于250℃的氧气的进料，持续长达150小时，随后将催化剂温度降至至多250℃，并将催化剂与包含烯烃的进料接触 和氧气。

    METHOD FOR IMPROVING THE SELECTIVITY OF A CATALYST AND A PROCESS FOR THE EPOXIDATION OF AN OLEFIN
    10.
    发明申请
    METHOD FOR IMPROVING THE SELECTIVITY OF A CATALYST AND A PROCESS FOR THE EPOXIDATION OF AN OLEFIN 有权
    改进催化剂选择性的方法和烯烃环氧化方法

    公开(公告)号：US20100160655A1

    公开(公告)日：2010-06-24

    申请号：US12337923

    申请日：2008-12-18

    申请人： John Robert LOCKEMEYER ,  Randall Clayton Yeates ,  Donald Reinalda

    发明人： John Robert LOCKEMEYER ,  Randall Clayton Yeates ,  Donald Reinalda

    IPC分类号： C07D301/10 ,  C07C41/02 ,  C07C31/18 ,  C07C209/00

    CPC分类号： C07D301/10

    摘要： A method for improving the selectivity of a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, which method comprises contacting the catalyst, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C.; and a process for the epoxidation of an olefin, which process comprises contacting a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C. and contacting the catalyst with the feed comprising the olefin and oxygen.

    摘要翻译： 一种用于提高载体的高选择性环氧化催化剂的选择性的方法，该催化剂包含银量至多为0.17g / m 2表面积的载体，该方法包括使催化剂或包含阳离子型银的催化剂的前体 ，在催化剂温度高于250℃的情况下使用包含氧的进料持续长达150小时，随后将催化剂温度降至至多250℃的值。 和烯烃的环氧化方法，该方法包括使包含银的负载型高选择性环氧化催化剂以至少0.17g / m 2表面积的载体或包含阳离子形式的银的催化剂前体 使用在催化剂温度高于250℃的氧气的进料，持续长达150小时，随后将催化剂温度降至至多250℃，并将催化剂与包含烯烃的进料接触 和氧气。