Title:
IRON SELECTIVE RESIN
Document Type and Number:
Japanese Patent JPS5695344
Kind Code:
A
Abstract:
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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Inventors:
JIYONASAN HAWAADO HOTSUKIN
Application Number:
JP16903080A
Publication Date:
August 01, 1981
Filing Date:
November 28, 1980
Export Citation:
Assignee:
COMMW SCIENT IND RES ORG
International Classes:
C02F1/42; B01J45/00; C02F1/64; C08F14/06; C08G8/28; C08G14/06; C08G14/12; C22B3/00; (IPC1-7): B01J45/00; C02F1/42