Title:
RECOVERING ACTINIDE VALUABLES
Document Type and Number:
Japanese Patent JPS5520297
Kind Code:
A
Abstract:
A process for rendering actinide values recoverable from sodium carbonate scrub waste solutions containing these and other values along with organic compounds resulting from the radiolytic and hydrolytic degradation of neutral organophosphorous extractants such as tri-n butyl phosphate (TBP) and dihexyl-N,N-diethyl carbamylmethylene phosphonate (DHDECAMP) which have been used in the reprocessing of irradiated nuclear reactor fuels. The scrub waste solution is preferably made acidic with mineral acid, to form a feed solution which is then contacted with a water-immiscible, highly polar organic extractant which selectively extracts the degradation products from the feed solution. The feed solution can then be processed to recover the actinides for storage or recycled back into the high-level waste process stream. The extractant is recycled after stripping the degradation products with a neutral sodium carbonate solution.
Inventors:
II FUIRITSUPU HOROUITSUTSU
JIYOOJI DABURIYU MEISON
JIYOOJI DABURIYU MEISON
Application Number:
JP9416679A
Publication Date:
February 13, 1980
Filing Date:
July 24, 1979
Export Citation:
Assignee:
US GOVERNMENT
International Classes:
C01G56/00; C22B3/38; C22B60/02; C01G43/00; C22B60/04; G21C19/46; G21F9/00; (IPC1-7): C01G43/00; C01G56/00
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