Treatment of acidic INEEL waste using a countercurrent cobalt dicarbollide-based universal solvent extraction process
- Lockheed Martin Idaho Technologies, Inc., Idaho Falls, ID (United States). Idaho National Engineering and Environmental Lab.
- Khlopin Radium Inst., St. Petersburg (Russian Federation)
A tertiary solvent containing chlorinated cobalt dicarbollide, diphenylcarbamoylmethylphosphine oxide and polyethylene glycol in different diluents was evaluated for the separation of cesium, strontium, actinides and rare earth elements from acidic liquid radioactive waste in countercurrent solvent extraction processes. This universal solvent extraction process has been demonstrated in 24-stage centrifugal contactor pilot plants, using simulated acidic tank waste, at the Khlopin Radium Institute (KRI), St. Petersburg, Russia, and at the Idaho National Engineering and Environmental Laboratory (INEEL). Demonstration of the universal extraction process with actual tank waste is scheduled at the INEEL in 1998.
- Research Organization:
- Lockheed Martin Idaho Technologies, Inc., Idaho National Engineering and Environmental Lab., Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
- DOE Contract Number:
- AC07-94ID13223
- OSTI ID:
- 656587
- Report Number(s):
- INEEL/CON--97-01433; CONF-980905--; ON: DE98056071
- Country of Publication:
- United States
- Language:
- English
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