Recovery of uranium from vitro leach liquors by ion exchange. Part II. Cyclic column tests comparing IRA-400 and XE-75 resins and cyclic testing of a resin-in-pulp system
A three-column ion exchange test program on Vitro leach liquors was run to compare the performance of IRA-400 and XE-75 resins with respect to loading, elution, and poisoning characteristics. When a high molybdenum liquor was used as feed to the columns, molybdenum poisoning was shown to occur with both IRA-400 and XE-75 resins; however, this poisoning action was much less rapid and less extensive in the case of XE-75. In this respect the XE-75 was found to be similar to Permutit SE. The use of a six percent caustic regenerant completely restored the ion exchange properties of the poisoned XE-75 resin. A cyclic resin-in-pulp process for recovery of uranium from Vitro leach liquors and pulps was studied. The Winchester cell was employed for this investigation in conjunction with XE-123 resin - - a plust 20 mesh resin with the exchange characteristics of XE-75. Performance data, including the effects of molybdenum poisoning, indicate that a 12 cell string may be used effectively with seven cells on exhaustion and five on elution.
- Research Organization:
- American Cyanamid Co., Winchester, MA (United States). Raw Materials Development Lab.
- OSTI ID:
- 481263
- Report Number(s):
- AD-A--321898/9/XAB; ACCO--46; CNN: Contract AT(49-1)-533
- Country of Publication:
- United States
- Language:
- English
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