DEHYDRATION OF INORGANIC ION EXCHANGE MEDIA
The feasibility of through-gas drying of several inorganic ion exchange materials was demonstrated by drying from the fully saturated condition to less than 0.4 weight percent residual moisture under conditions suitable for production applications. Water saturated beds were dehydrated at a rate of 0.7 lineal foot per hour with hot (800 deg F), dry (-100 deg F dewpoint) air at a superficial rate of 420 pounds per hour per square foot of bed cross section. Particulate loading in the off gas was found to be low; 10/sup -4/ to 10/sup -5/ grains per cubic foot. This is equivalent to 0.06 to 0 006 curies of strontium- 90 or 0.08 to 0.008 curies of cesium-137 per hour (assuming 2 milliequivalents strontium or cesium per grim of exchanger material). Molecular sieve type AW400 as currently manufactured by the Linde Company was was found to have little resistance to attrition. Apparently the material used as a binding agent is a major factor in determining the physical properties of the exchanger material. Thermal conductivities of the candidate zeolites were determined in air and in helium at temperatures of interest. (auth)
- Research Organization:
- General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
- DOE Contract Number:
- AT(45-1)-1350
- NSA Number:
- NSA-17-042415
- OSTI ID:
- 4693378
- Report Number(s):
- HW-78893
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- United States
- Language:
- English
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