Process for removing heavy-metal ions from aqueous solution

Details Process for removing heavy-metal ions from aqueous solution Process for removing heavy-metal ions from aqueous solution

1980-08-20

1982-04-06

Lee, Lester L.

Liquid purification or separation

Processes

Ion exchange or selective sorption

C02F 128

Patent

active

043234585

ABSTRACT:
An etherified phenolic chelate resin prepared by stabilizing and protecting the chelate groups of a phenolic chelate resin and then converting some or all of the phenolic hydroxyl groups into either groups; a process for the production of the etherified phenolic chelate resin; and a method for separating a heavy metal ion from an aqueous solution having a pH of at least 7 by using this etherified phenolic chelate resin.

REFERENCES:
patent: 2259503 (1941-10-01), Wassenegger et al.
patent: 2625530 (1953-01-01), Doelling et al.
patent: 2753316 (1956-07-01), Campbell
patent: 3936399 (1976-02-01), Hirai et al.
patent: 4028284 (1977-06-01), Yokota et al.
patent: 4250031 (1981-02-01), Uejima et al.
patent: 4284512 (1981-08-01), Hodgkin

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