EUROCHEMIC ASSISTANCE: CHEMICAL TECHNOLOGY DIVISION UNIT OPERATIONS SECTION MONTHLY PROGRESS REPORT, NOVEMBER 1958. (SECTIONS 1.0, 5.0, 6.0, AND 8.0 OF ORNL CF-58-11-93)
The extraction reaction kinetics and the liquid diffusivities are being studied by measuring the concentration profile in a column of liquid containing an interface. The determination of the equilibrium sorption isotherms and rates of sorption of U on Dowex 21K is reported. Flowsheet development and modification are reported for the Darex process. U was shown that the hydrochlorination of Zr-U alloy fuels with HCl gas contain- ing CO/sub 2/, H/sub 2/O/, and O/sub 2/ impurities increases the quantity of HNO/sub3/ insoluble U losses in the uranium chloride product. During the dissolution of spent enriched oxide fuel cores in a dissolver geometricslly safe only in the bottom dissolution area the dissolution off-gas may entrain critical amounts of fine undissolved fuel particles to the enlarged non-critically safe upper portion of the dissolver. Preliminary tests were made to determine the likelihood of fuel fines being entrained in this manner during the dissolution. Solvent extraction studies are being made to assist the Hanford Atomic Products Operation to adapt the Redox process for the recovery ot U from spant stainless steel-type power reactor fuels. Preliminary hot cell tests of the Zirflex and Sulfex flowsheets -Here completed. Batch dejacketing and core dissolution of each of sixteen PWR blanket fuels (UO/ sub 2/ pellets clad with Zircaloy-21 with burnups from 250 to 2500 Mwd/ton were made. A series of experiments was made to determine the amount of fission products evolved when different types of wastes were calcined to dryness. (W.L.H.)
- Research Organization:
- Oak Ridge National Lab., Tenn.
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- W-7405-ENG-26
- NSA Number:
- NSA-13-016872
- OSTI ID:
- 4228891
- Report Number(s):
- CF-59-5-1
- Country of Publication:
- United States
- Language:
- English
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EUROCHEMIC ASSISTANCE: MONTHLY PROGRESS REPORT FOR CHEMICAL DEVELOPMENT SECTION B, JANUARY 1959. (SECTIONS 1.0, EXCEPT 1.42, AND 2.0)
RECENT DEVELOPMENTS IN FEED PREPARATION AND SOLVENT EXTRACTION
Related Subjects
BLANKETS
BURNUP
CARBON DIOXIDE
CHEMISTRY
CHLORINATION
COMBUSTION
DAREX PROCESS
DIAGRAMS
DIFFUSION
ENRICHMENT
EXTRACTION COLUMNS
FISSION PRODUCTS
FUELS
GASES
HYDROCHLORIC ACID
IMPURITIES
JACKETS
LIQUIDS
LOSSES
MEASURED VALUES
NITRIC ACID
OXYGEN
PELLETS
POWER PLANTS
QUANTITY RATIO
REACTION KINETICS
REACTOR CORE
REACTORS
RECOVERY
REDOX PROCESS
SAFETY
SOLUBILITY
SOLVENT EXTRACTION
STAINLESS STEELS
URANIUM
URANIUM ALLOYS
WASTE PROCESSING
WATER
ZIRCALOY
ZIRCONIUM ALLOYS