Process for preparing selective ion exchangers
    6.
    发明授权
    Process for preparing selective ion exchangers 有权
    制备选择性离子交换剂的方法

    公开(公告)号:US06610753B2

    公开(公告)日:2003-08-26

    申请号:US09371682

    申请日:1999-08-10

    IPC分类号: C08J520

    CPC分类号: B01J45/00

    摘要: The present invention relates to a process for preparing selective ion exchangers based on crosslinked vinylaromatic polymers and containing iminoacetic acid units of the general formulas (I) and (II) wherein X represents hydrogen or an alkali metal ion, by reacting a weak-base anion exchanger bearing primary amino groups with monochloro-acetic acid and/or an alkali metal salt of monochloroacetic acid at a temperature of from 70 to 110° C. and a pH of from 7 to 11.

    摘要翻译: 本发明涉及一种制备基于交联乙烯基芳族聚合物的选择性离子交换剂和含有通式(I)和(II)的亚氨基乙酸单元的方法,其中X表示氢或碱金属离子,通过使弱碱阴离子 具有一氯乙酸和/或一氯乙酸的碱金属盐的伯氨基的交换剂在70至110℃的温度和7至11的pH下进行。