发明名称 |
Iron selective resins prepared from a phenol, HCHO and a di-secondary amine |
摘要 |
Ferric ions may be removed very selectively from aqueous solutions by means of a metal-chelating resin consisting of the acid-quaternized form of a cross-linked polymer produced by the condensation of a phenolic component comprising one or more phenols, formaldehyde, and a diamino component comprising one or more di-(secondary amino) compounds under neutral conditions. The resin is prepared by treating the cross-linked polymer with an aqueous solution of a strong mineral acid.
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申请公布号 |
US4284512(A) |
申请公布日期 |
1981.08.18 |
申请号 |
US19790100020 |
申请日期 |
1979.12.03 |
申请人 |
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION |
发明人 |
HODGKIN, JONATHAN H. |
分类号 |
C02F1/42;B01J45/00;C02F1/64;C08F14/06;C08G8/28;C08G14/06;C08G14/12;C22B3/00;(IPC1-7):C02F1/42 |
主分类号 |
C02F1/42 |
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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