Phosphonic acid chelating resins for uranyl ion adsorption

Details Phosphonic acid chelating resins for uranyl ion adsorption Phosphonic acid chelating resins for uranyl ion adsorption

1993-11-30

1995-10-10

Zitomer, Fred

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

521 25, 521 30, 521 32, 5253333, 5253334, 5253336, 525355, 526274, 526277, 526278, 526336, 526338, 526340, 526347, C08F 3002, C08F 812

Patent

active

054571634

ABSTRACT:
This invention relates to a process of manufacturing phosphoric acid-type chelate resins as uranyl ion adsorbents having enhanced chelation and re-utilizing ability by introducing plenty of phosphoric acid groups both on main- and side-chain of the copolymer skeleton. The resin is prepared by both the radical suspension copolymerization of vinyl monomers such as styrene, divinylbenzene, and bis-(2-chloroethyl) vinylphosphonate and the additional introduction of phosphono group onto the copolymer.

REFERENCES:
patent: 3993715 (1976-11-01), Hwa
Egawa et al., "Journal of Applied Polymer Science", 29, 2045-2055 (1984).

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