Oxine impregnated activated charcoal metal ion adsorbent

Details Oxine impregnated activated charcoal metal ion adsorbent Oxine impregnated activated charcoal metal ion adsorbent

1982-03-24

1985-01-29

Konopka, P. E.

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Organic

210682, 210688, 252631, 502401, B01J 2026, B01J 2020, G21F 912

Patent

active

044966644

ABSTRACT:
A metal ion adsorbent free from release of oxine from activated charcoal even at a high temperature of more than 150.degree. C. is prepared by adsorbing oxine or its derivative onto activated charcoal, adsorbing a phenol onto activated charcoal, dipping the resulting activated carbon into an aqueous solution of aldehyde such as formaldehyde, methylolizing oxine or its derivative in the presence of an acid or an alkali as a reaction promoter, and binding the methylolized oxine derivative, and the phenol by copolymerization or oxine can be methylolized in advance and then adsorbed onto the activated charcoal in place of adsorption of oxine onto the activated carbon, followed by methylolization of the oxine on the surface of the activated charcoal.

REFERENCES:
patent: 3755161 (1973-08-01), Yokota et al.
patent: 4222892 (1980-09-01), Motojima et al.
patent: 4266045 (1981-05-01), Vejima et al.
patent: 4284512 (1981-08-01), Yodgkin

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