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    • 7. 发明授权
    • Anion exchange method
    • 阴离子交换法
    • US5350523A
    • 1994-09-27
    • US936337
    • 1992-08-28
    • Masao TomoiAtsuo KiyokawaHiromasa OgawaTeruo OnozukaTsuyoshi Ito
    • Masao TomoiAtsuo KiyokawaHiromasa OgawaTeruo OnozukaTsuyoshi Ito
    • B01J41/04B01J41/14C02F1/42B01J41/12
    • B01J41/043B01J41/14
    • 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.
    • 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。