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Title: Process options and projected mass flows for the HTGR refabrication scrap recovery system

Abstract

The two major uranium recovery processing options reviewed are (1) internal recovery of the scrap by the refabrication system and (2) transfer to and external recovery of the scrap by the head end of the reprocessing system. Each option was reviewed with respect to equipment requirements, preparatory processing, and material accountability. Because there may be a high cost factor on transfer of scrap fuel material to the reprocessing system for recovery, all of the scrap streams will be recycled internally within the refabrication system, with the exception of reject fuel elements, which will be transferred to the head end of the reprocessing system for uranium recovery. The refabrication facility will be fully remote; thus, simple recovery techniques were selected as the reference processes for scrap recovery. Crushing, burning, and leaching methods will be used to recover uranium from the HTGR refabrication scrap fuel forms, which include particles without silicon carbide coatings, particles with silicon carbide coatings, uncarbonized fuel rods, carbon furnace parts, perchloroethylene distillation bottoms, and analytical sample remnants. Mass flows through the reference scrap recovery system were calculated for the HTGR reference recycle facility operating with the highly enriched uranium fuel cycle. Output per day from the refabrication scrapmore » recovery system is estimated to be 4.02 kg of /sup 2355/U and 10.85 kg of /sup 233/U. Maximum equipment capacities were determined, and future work will be directed toward the development and costing of the scrap recovery system chosen as reference.« less

Authors:
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
6326886
Report Number(s):
ORNL/TM-6625
TRN: 79-008917
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; FUEL FABRICATION PLANTS; MATERIALS RECOVERY; URANIUM; RECOVERY; COATED FUEL PARTICLES; FLOWSHEETS; FUEL CYCLE; FUEL PARTICLES; HTGR TYPE REACTORS; MASS TRANSFER; RADIOACTIVE WASTE PROCESSING; RECYCLING; SCRAP; SILICON CARBIDES; SOLID WASTES; ACTINIDES; CARBIDES; CARBON COMPOUNDS; DIAGRAMS; ELEMENTS; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; MANAGEMENT; METALS; NUCLEAR FACILITIES; PROCESSING; REACTORS; SILICON COMPOUNDS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; 052001* - Nuclear Fuels- Waste Processing

Citation Formats

Tiegs, S. M. Process options and projected mass flows for the HTGR refabrication scrap recovery system. United States: N. p., 1979. Web. doi:10.2172/6326886.
Tiegs, S. M. Process options and projected mass flows for the HTGR refabrication scrap recovery system. United States. https://doi.org/10.2172/6326886
Tiegs, S. M. 1979. "Process options and projected mass flows for the HTGR refabrication scrap recovery system". United States. https://doi.org/10.2172/6326886. https://www.osti.gov/servlets/purl/6326886.
@article{osti_6326886,
title = {Process options and projected mass flows for the HTGR refabrication scrap recovery system},
author = {Tiegs, S. M.},
abstractNote = {The two major uranium recovery processing options reviewed are (1) internal recovery of the scrap by the refabrication system and (2) transfer to and external recovery of the scrap by the head end of the reprocessing system. Each option was reviewed with respect to equipment requirements, preparatory processing, and material accountability. Because there may be a high cost factor on transfer of scrap fuel material to the reprocessing system for recovery, all of the scrap streams will be recycled internally within the refabrication system, with the exception of reject fuel elements, which will be transferred to the head end of the reprocessing system for uranium recovery. The refabrication facility will be fully remote; thus, simple recovery techniques were selected as the reference processes for scrap recovery. Crushing, burning, and leaching methods will be used to recover uranium from the HTGR refabrication scrap fuel forms, which include particles without silicon carbide coatings, particles with silicon carbide coatings, uncarbonized fuel rods, carbon furnace parts, perchloroethylene distillation bottoms, and analytical sample remnants. Mass flows through the reference scrap recovery system were calculated for the HTGR reference recycle facility operating with the highly enriched uranium fuel cycle. Output per day from the refabrication scrap recovery system is estimated to be 4.02 kg of /sup 2355/U and 10.85 kg of /sup 233/U. Maximum equipment capacities were determined, and future work will be directed toward the development and costing of the scrap recovery system chosen as reference.},
doi = {10.2172/6326886},
url = {https://www.osti.gov/biblio/6326886}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {3}
}