CRUD PICK-UP BY MIXED BED ION EXCHANGE
The residual capacity of mixed resins during the first nine weeks of contact was determined with a synthetic crud in aqueous solution (crud is primary loop water containing suspended corrosion products) containing not less than 5 g of crud per 100 ml of wet resin, and it was compared with the residual capacity of individual cation and anion resins under similar conditions. When fresh anion and cation resins individually and mixed were contacted with a fresh synthetic crud in the range 1.33 to 7.0 milliequivalents of initial resin capacity per gram of crud, the exhaustion of capacity leveled off after 3 to 5 weeks and no additional decrease occurred up to 9 weeks. The absolute capacity decreases were proportional to the amount of crud added. When the cation resin was contacted separately, the capacity exhausted from 22% to 100% depending on the amount of crud added. The exhaustion of the cation capacity was 1.4 to 1.8 milliequivalents per gram of crud. The exhaustion of cation capacity in the mixed bed was 0.2 to 0.3. The exhaustion of the anion capacity alone and in a mixed bed was 0.2 to 0.4. (auth)
- Research Organization:
- National Aluminate Corp., Chicago
- NSA Number:
- NSA-12-009740
- OSTI ID:
- 4345133
- Report Number(s):
- AECU-3689
- Country of Publication:
- United States
- Language:
- English
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