EUROCHEMIC ASSISTANCE: CHEMICAL TECHNOLOGY DIVISION UNIT OPERATIONS SECTION MONTHLY PROGRESS REPORT, DECEMBER 1958. (SECTIONS 5.0, 6.0, 8.0)
A study of the equiibrium sorption isotherms and rates of U sorption on Dowex 21K is in progress. Data which show the effects of uranium concentration in solution on resin loading are presented Fuel reprocessing experiments are reported in which efforts were made to reduce Cl- in Darex dissolver solution to < 350 ppm for the extraction phase. The best method of Cl/sup -/ reduction appears to be operation with a down draft condenser and an air sparge. A check- out dissolution min in the 6 in. glass dissolver with a prototype APPR fuel element is reported, and data on dissolution time and composition of reacted products are given. Data on filtration rates for Darex solutions expected in large-scale operations are tabulated, and graphs illustrating the effects of pressure drop and filter aids on filtering rates are presented. Tests on washing U from filter cakes indicate that U can be removed to any desired level. Viscosity, density. and boiling points as a function of temperature or pressure were determined for two Darex solvent extraction feed solutions; data are presented grahically, and results of chemical analyses are tabuated. Demonstation runs for Sulfex and Zirflex dejacketing flowsheets were made. Results indicate that parts of the Sulfex flowsheet map have to be changed to prevent core losses from fluoride contamination. Results from the Zirflex demonstration are being compiled. Design of the SRE decanning device was completed and sub mitted to vendors for bids; also the design of a prototype fuel bundle to serve as an inexpensive substitute in chopping and leaching studies is reported. Preliminary shearing studies with the 120 ton hydraulic Manco shear indicate that its usefulness is limited, and criteria for a large shear for spent fuel bundles are being written. Darex-type solvent extraction studies using hexane are reported, and U loss data are tabulated. Several experiments to determine the amount of fission products evolved when various types of wastes were dried and calcined are reported. The anmount of fission products in the condensate and the amount removed by the caustic scrubber downstreanm of the condensate receiver are given. (For preceding period see CF-59-5-1.) (J.R.D.)
- Research Organization:
- Oak Ridge National Lab., Tenn.
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- W-7405-ENG-26
- NSA Number:
- NSA-13-016873
- OSTI ID:
- 4248131
- Report Number(s):
- CF-59-5-2
- Country of Publication:
- United States
- Language:
- English
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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)
RECENT DEVELOPMENTS IN FEED PREPARATION AND SOLVENT EXTRACTION
Related Subjects
BOILING
CANNING
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CONTAMINATION
DAREX PROCESS
DENSITY
DIAGRAMS
DOWEX
FILTERS
FISSION PRODUCTS
FLUORIDES
FUEL ELEMENTS
FUELS
GLASS
HEXANE
HYDRAULICS
ION EXCHANGE MATERIALS
JACKETS
LEACHING
LOSSES
PLANNING
PRESSURE
QUALITATIVE ANALYSIS
REACTION KINETICS
REACTOR CORE
REDUCTION
REPORT
REPROCESSING
SOLUTIONS
SOLVENT EXTRACTION
SULFEX PROCESS
TABLES
TEMPERATURE
TESTING
URANIUM
WASTE PROCESSING
ZIRFLEX PROCESS