Etherified phenolic chelate resin, process for its production, a

Details Etherified phenolic chelate resin, process for its production, a Etherified phenolic chelate resin, process for its production, a

1978-09-11

1981-05-05

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

210688, 525 32, 525 35, 525391, 525396, 525397, 525480, 525504, 525505, 525506, 525508, 528162, 528163, 528164, 528212, C08G 810, C08G 828, C08G 832

Patent

active

042660459

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 ether 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: 3936399 (1976-02-01), Hirai et al.
patent: 4028284 (1977-06-01), Hirai et al.

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