Method for treating water or an aqueous solution
    1.
    发明授权
    Method for treating water or an aqueous solution 失效
    处理水或水溶液的方法

    公开(公告)号:US5518627A

    公开(公告)日:1996-05-21

    申请号:US396795

    申请日:1995-03-01

    IPC分类号: B01J41/04 C02F1/42

    摘要: A method for demineralizing water or an aqueous solution, which comprises contacting the water or the aqueous solution to be treated to a strongly basic anion exchanger made of a crosslinked polymer having a constituting unit of the following formula (I): ##STR1## wherein A is a C.sub.1-2 linear alkylene group, B is a C.sub.4-8 linear alkylene group, each of R1, R2 and R3 which may be the same or different, is a C.sub.1-4 alkyl group or a C.sub.2-4 alkanol group, X is a counter ion coordinated on the ammonium group, and the benzene ring D may have an alkyl group or a halogen atom as a substituent.

    摘要翻译: 一种使水或水溶液软化矿物的方法,其包括将待处理的水或溶液与由具有下式(I)的构成单元的交联聚合物制成的强碱性阴离子交换剂接触: )其中A为C1-2直链亚烷基,B为C4-8直链亚烷基,R 1,R 2和R 3可相同或不同,为C 1-4烷基或C 2-4链烷醇 基团,X是在铵基上配位的抗衡离子,苯环D可以具有烷基或卤素原子作为取代基。

    Anion exchange method
    2.
    发明授权
    Anion exchange method 失效
    阴离子交换法

    公开(公告)号:US5350523A

    公开(公告)日:1994-09-27

    申请号:US936337

    申请日:1992-08-28

    CPC分类号: B01J41/043 B01J41/14

    摘要: An anion exchange method conducted at a high temperature, which comprises using a crosslinked anion exchanger which comprises structural units having a quaternary ammonium group of the following formula (a) and structural units derived from an unsaturated hydrocarbon group-containing crosslinkable monomer, and of which at least 90% of anion exchange groups are present in the form of a group represented by ##STR1## as defined in the following formula (a): ##STR2## wherein R is a --(CH.sub.2).sub.n --group (n=an integer of from 3 to 18) which may include a cyclic hydrocarbon, each of R.sub.1, R.sub.2 and R.sub.3 which are independent from one another, is a C.sub.1 -C.sub.8 hydrocarbon group or a C.sub.1 -C.sub.8 alkanol group, the benzene ring of the formula (a) may be substituted by an alkyl group or a halogen atom, or may be condensed with other aromatic ring, and X is an anion.

    摘要翻译: 在高温下进行的阴离子交换法,其包括使用交联阴离子交换剂,其包含具有下式(a)的季铵基的结构单元和源自不饱和烃基的可交联单体的结构单元,其中 至少90%的阴离子交换基团以如下式(a)所定义的由下式(a)表示的基团的形式存在:其中R是 - (CH 2)n - 基(n = 3〜18的整数),其可以包括彼此独立的R 1,R 2和R 3中的每一个为环烃,为C 1 -C 8烃基或C 1 -C 8链烷醇基,苯环为 式(a)可以被烷基或卤原子取代,或者可以与其它芳香环稠合,X是阴离子。