Method for removing methylene-bridged polyphenyl polyamines from an aqueous stream
    1.
    发明授权
    Method for removing methylene-bridged polyphenyl polyamines from an aqueous stream 有权
    从含水物流中除去亚甲基桥连的聚苯胺的方法

    公开(公告)号:US08829243B2

    公开(公告)日:2014-09-09

    申请号:US13391743

    申请日:2010-07-22

    CPC分类号: C08G73/0266 C08G12/08

    摘要: A method for removing methylene-bridged polyphenyl polyamines from an aqueous stream comprising said methylene-bridged polyphenyl polyamines according to the invention comprises the steps of Providing a pertraction equipment comprising a membrane with a first side and a second side opposite to said first side; Bringing an aqueous stream comprising methylene-bridged polyphenyl polyamines into contact with the first side of the membrane and bringing an organic stream into contact with the second side of the membrane, thereby causing the methylene-bridged polyphenyl polyamines to transfer from the aqueous stream through the membrane to the organic stream. The method further comprises, before bringing the aqueous stream and organic stream in contact with the membrane, the step of wetting the membrane with a liquid having a surface tension of less than 40 mN/m.

    摘要翻译: 从包含根据本发明的所述亚甲基桥接的聚苯胺的含水流中除去亚甲基桥接的聚苯胺的方法包括以下步骤:提供包含膜的吸收设备,其具有与所述第一侧相对的第一侧和第二侧; 使包含亚甲基桥接的聚苯胺的水流与膜的第一侧接触并使有机物流与膜的第二侧接触,从而使亚甲基桥连的聚苯胺从水流转移通过 膜到有机物流。 该方法还包括在使水流和有机物流与膜接触之前,使用具有小于40mN / m的表面张力的液体润湿膜的步骤。

    METHOD FOR REMOVING METHYLENE-BRIDGED POLYPHENYL POLYAMINES FROM AN AQUEOUS STREAM
    3.
    发明申请
    METHOD FOR REMOVING METHYLENE-BRIDGED POLYPHENYL POLYAMINES FROM AN AQUEOUS STREAM 有权
    从水质流中除去亚甲基桥联的聚苯胺的方法

    公开(公告)号:US20120184775A1

    公开(公告)日:2012-07-19

    申请号:US13391743

    申请日:2010-07-22

    IPC分类号: C07C209/86

    CPC分类号: C08G73/0266 C08G12/08

    摘要: A method for removing methylene-bridged polyphenyl polyamines from an aqueous stream comprising said methylene-bridged polyphenyl polyamines according to the invention comprises the steps of Providing a pertraction equipment comprising a membrane with a first side and a second side opposite to said first side; Bringing an aqueous stream comprising methylene-bridged polyphenyl polyamines into contact with the first side of the membrane and bringing an organic stream into contact with the second side of the membrane, thereby causing the methylene-bridged polyphenyl polyamines to transfer from the aqueous stream through the membrane to the organic stream. The method further comprises, before bringing the aqueous stream and organic stream in contact with the membrane, the step of wetting the membrane with a liquid having a surface tension of less than 40 mN/m.

    摘要翻译: 从包含根据本发明的所述亚甲基桥接的聚苯胺的含水流中除去亚甲基桥接的聚苯胺的方法包括以下步骤:提供包含膜的吸收设备,其具有与所述第一侧相对的第一侧和第二侧; 使包含亚甲基桥接的聚苯胺的水流与膜的第一侧接触并使有机物流与膜的第二侧接触,从而使亚甲基桥连的聚苯胺从水流转移通过 膜到有机物流。 该方法还包括在使水流和有机物流与膜接触之前,使用具有小于40mN / m的表面张力的液体润湿膜的步骤。