Process for producing an aminophosphoric acid-type chelate resin

Details Process for producing an aminophosphoric acid-type chelate resin Process for producing an aminophosphoric acid-type chelate resin

1992-07-24

1993-05-04

Foelak, Morton

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

Synthetic resins

Ion-exchange polymer or process of preparing

521 31, 521146, 5253322, 525379, 525381, C08F 840, B01J 4500

Patent

active

052082644

ABSTRACT:
A process for producing an aminophosphoric acid-type chelate resin, which comprises aminating halomethyl groups of a polymer having the halomethyl groups on aromatic nuclei, followed by phosphomethylation, wherein the amination reaction is conducted by means of an amine mixture comprising a monoamine and a polyamine, wherein the proportion of the monoamine to the total amount of both amines is from 20 to 70% by mole.

REFERENCES:
patent: 2883349 (1959-04-01), Tsunoda et al.
patent: 4002564 (1977-01-01), Carbonel et al.
patent: 4277566 (1981-07-01), Kataoka et al.
patent: 4442231 (1984-04-01), Kataoka et al.
patent: 5109074 (1992-04-01), Eiffler et al.

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