Electrometallurgical Techniques for DOE Spent Fuel Treatment A Status Report on Argonne National Laboratory's R & D Activity Through Spring 1997 (1999) / Chapter Skim
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Appendix C: ANL Monthly Highlights of the Electrometallurgical Treatment Progra
Appendix C: ANL Monthly Highlights of the Electrometallurgical Treatment Progra
Pages 18-26
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From page 18... ...
In the preparation of this report, the committee used the Monthly Highlights for the periods mid-October through mid-November 1995, mid-November through December 1995, January 1996, and February 1996. These documents are included in this appendix.
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From page 19... ...
high-throughput electrorefiner has been completed and fabrication is in progress. Treatment of Oxide Spent Fuel: The anode for the lithium electrowinning step of the lithium reduction process has been redesigned and fabrication has been completed, the anode is ready for transfer into the gIovebox for final assembly.
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From page 20... ...
Mineral Waste Form Development: A zeolite ion exchange column has been operated with simulated waste salt. This was the initial test to determine the operating conditions for an ion exchange column and to establish the feasibility of the process.
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From page 21... ...
The inserts were easily removed from the anodic dissolution baskets at room temperature after contact with the salt in the electroref~ner. This result shows promise for the development of removable anode screen baskets that can be used to retain the cladding hulls and noble metal fission products.
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From page 22... ...
The alkali metals sodium and potassium have invariant exchange factors. Increasing the capacity of the zeolite blender from 100 to 300 g was found to yield a great reduction in the amount of free salt in the blended zeolite at salt loadings between 7.5 and 9.5 chloride ions per unit cell.
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From page 23... ...
Appendix C ANT Monthly Highlights Waste Treatment Process Development: Tests of the four-stage pyrocontactor with cadmium have shown excellent rotor stability up to the motor limit of 3300 rpm. The feed system for the pyrocontactors has been changed from gravity flow to pressure-controlled flow, resulting in an improvement in the stability of metal flared by a factor of six.
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From page 24... ...
Casting furnace consolidation and sampling experiment was successfully conducted involving a 5.6 kg ingot. Electrorefining Process Development: Chemical analysis results have been obtained for the electrorefining test in which chopped, clad U-Zr-Fs fuel was loaded into anodic dissolution baskets having fine mesh steel retainer screens with 200-, 250-, and 325-mesh screens (and one basket with no retainer screen)
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From page 25... ...
In an experiment with the zeolite column apparatus, approximately 3 kg of waste salt were passed through the column at a flow rate of about 50 g/min. The untreated salt contained rare earth fission product elements and had a distinct blue color due to the presence of the rare earth cations.
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From page 26... ...
These activities meet the DOE milestone to initiate ceramic waste form experiments at Argonne-West. Electrorefining Process Development: Uranium electrodeposition tests were initiated in the engineeringscale electrorefiner at ANL-E to support the Fuel Conditioning Facility electrorefiner operations.
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