REMOVAL OF IODINE FROM AQUEOUS SOLUTIONS BY SPARGING
The removal of iodine, in the iodide, iodine, or iodate forms, from uranium dissolver solutions by sparging was studied as a function of several variables. An increase in temperature or spargent flow-rate increased the rate of iodine removal in any of the oxidation states studied. Oxygen, air, and nitrogen were of increasing effectiveness in the order given when the iodine was added as iodine or iodate; the order was reversed for iodide. The iodine or iodate states were more rapidly evolved at a given spargent flow-rate when the solution was in contact with metallic uranium. Iodine removal was slower in the presence of metallic uranium. The evaluation of any of the three iodine oxidation states studied was not influenced by uranyl nitrate concentration between 1.5 and 2.2 M. Curves relating per cent iodine remaining after three hours of air sparging at 1.7 cc/m/ml to nitric acid concentration show broad minima for each oxidation state, ranging from 0.5 to 2.0, 0.1 to 0.7, and 0.0 to 0.5 M HNO/sub 3/ for iodide, iodine, and iodate, respectively. (C.J.G.)
- Research Organization:
- Hanford Works, Richland, Wash.
- DOE Contract Number:
- W-31-109-ENG-52
- NSA Number:
- NSA-14-015685
- OSTI ID:
- 4138835
- Report Number(s):
- HW-20803
- Resource Relation:
- Other Information: Decl. May 9, 1960. Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- United States
- Language:
- English
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