发明名称 |
Anion exchange method |
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 <IMAGE> as defined in the following formula (a): <IMAGE> (a) wherein R is a -(CH2)n-group (n=an integer of from 3 to 18) which may include a cyclic hydrocarbon, each of R1, R2 and R3 which are independent from one another, is a C1-C8 hydrocarbon group or a C1-C8 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.
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申请公布号 |
US5350523(A) |
申请公布日期 |
1994.09.27 |
申请号 |
US19920936337 |
申请日期 |
1992.08.28 |
申请人 |
MITSUBISHI KASEI CORPORATION;TOHOKU ELECTRIC POWER CO., INC. |
发明人 |
TOMOI, MASAO;KIYOKAWA, ATSUO;OGAWA, HIROMASA;ONOZUKA, TERUO;ITO, TSUYOSHI |
分类号 |
B01J41/04;B01J41/14;(IPC1-7):C02F1/42;B01J41/12 |
主分类号 |
B01J41/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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