Phenolic cation exchange resin material for recovery of cesium a

Details Phenolic cation exchange resin material for recovery of cesium a Phenolic cation exchange resin material for recovery of cesium a

1982-05-05

1983-12-27

Schofer, Joseph L.

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

Synthetic resins

Ion-exchange polymer or process of preparing

B01J 3918

Patent

active

044231598

ABSTRACT:
A phenolic cation exchange resin with a chelating group has been prepared by reacting resorcinol with iminodiacetic acid in the presence of formaldehyde at a molar ratio of about 1:1:6. The material is highly selective for the simultaneous recovery of both cesium and strontium from aqueous alkaline solutions, such as, aqueous alkaline nuclear waste solutions. The organic resins are condensation polymers of resorcinol and formaldehyde with attached chelating groups. The column performance of the resins compares favorably with that of commercially available resins for either cesium or strontium removal. By combining Cs.sup.+ and Sr.sup.2+ removal in the same bed, the resins allow significant reduction of the size and complexity of facilities for processing nuclear waste.

REFERENCES:
patent: 3313779 (1967-04-01), White
patent: 3936399 (1976-02-01), Hirai et al.
patent: 4028284 (1977-06-01), Hirai et al.
patent: 4107141 (1978-08-01), Moiseer et al.

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