Method for preparation of anion exchange resins
    1.
    发明授权
    Method for preparation of anion exchange resins 有权
    阴离子交换树脂的制备方法

    公开(公告)号:US06756462B2

    公开(公告)日:2004-06-29

    申请号:US10165105

    申请日:2002-06-07

    IPC分类号: C08J520

    摘要: An improved process for preparing anion exchange resins based on the use of a non-agitated plug-flow quench procedure followed by recycle of a portion of the recovered chloromethylation reaction fluids into subsequent chloromethylation reactions is disclosed. The combination of plug-flow hydration, providing highly concentrated recovered sulfuric acid, together with the recycle or reuse of the recovered concentrated sulfuric acid, allows for reduced raw material requirements during anion exchange resin manufacture and reduces the environmental impact of waste sulfuric acid processing.

    摘要翻译: 公开了一种改进的基于使用非搅拌塞流骤冷方法制备阴离子交换树脂的方法,随后将一部分回收的氯甲基化反应流体再循环到随后的氯甲基化反应中。 活塞水合,提供高浓度回收硫酸以及回收的浓硫酸的再循环或再利用的组合允许在阴离子交换树脂制造过程中减少原料需求并减少废硫酸处理对环境的影响。