MIXED RED ION EXCHANGE RESIN RATIO TESTS 10 PARTS CATION TO 1 PART ANION. Final Report
Because of the higher proportion of cations to anions (other than hydroxyl) found in the primary coolant of pressurized water systems the possibility of reducing the amount of anion resin in mixed bed resin demineralizers was considered. A significant reduction in the volumc of anion resin would permit the use of smaller demineralizers or, alternatively, might increase the life of a resin charge for the same sized demineralizer. In order to determine the feasibility of reducing the anion resin volume, a series of tests were run in which a mixed bed resin consisting of 10 parts by volume of cation resin to 1 part of anion resin (instead of the 1 part by volume of cation resin to 2 parts of anion resin currently used) was used as the demineralizer in out-of-pile, pressurized water loops. Results from the tests indicated that performance of the 10/1 ratio mixed bed resins did not meet conductivity specifications for existing pressurized water reactor systems. Furthermore, the 10/1 ratio resin exhibited poor breakthrough performance as indicated by acid leakage from the bed. In addition, resin breakthrough appeared to occur with only a small fraction of the residual capacity of the resin exhausted. It was concluded, therefore, that a 10/1 resin ratio was not adequate for use in pressurized water reactor systems, and the program has been concluded. It is possible that some other resin ratio less than 10/1 would be satisfactory for the proposed application. (auth)
- Research Organization:
- Westinghouse Electric Corp. Atomic Power Div., Pittsburgh
- DOE Contract Number:
- AT(11-1)-GEN-14
- NSA Number:
- NSA-12-002829
- OSTI ID:
- 4317759
- Report Number(s):
- WAPD-SFR-PD-113
- Country of Publication:
- United States
- Language:
- English
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