15 Matching Results

Search Results

Advanced search parameters have been applied.
in creator/contributor: "Mariani, R.D."  
Results: 1 - 15
open access

Experimental observations on the role of the cadmium pool in Mark-IV ER

Description: Argonne National Laboratory (ANL) has developed and demonstrated an electrometallurgical process for the Department of Energy (DOE) to treat sodium bonded spent nuclear fuel. One of the key steps in the demonstration was electrorefining the spent fuel in a molten LiCl-KCl-UCl{sub 3}/liquid cadmium system using a pilot scale electrorefiner (Mark-IV ER). This article summarizes experimental observations and engineering aspects for the roles of the liquid cadmium during electrorefining spent fuel … more
Date: March 20, 2000
Creator: Li, S. X.; Vaden, D.; Mariani, R. D. & Johnson, T. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Synthesis of Uranium Trichloride for the Pyrometallurgical Processing of Used Nuclear Fuel

Description: The pyroprocessing of used nuclear fuel via electrorefining requires the continued addition of uranium trichloride to sustain operations. Uranium trichloride is utilized as an oxidant in the system to allow separation of uranium metal from the minor actinides and fission products. The inventory of uranium trichloride had diminished to a point that production was necessary to continue electrorefiner operations. Following initial experimentation, cupric chloride was chosen as a reactant with uran… more
Date: November 1, 2011
Creator: Westphal, B.R.; Price, J.C. & Mariani, R.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

MC and A sampling activities at FCF

Description: The electrometallurgical treatment of the Experimental Breeder Reactor-II (EBR-II) spent fuel has reached the end of its demonstration phase at the Fuel Conditioning Facility (FCF). During this phase sampling from the different material streams within the facility was important for both operational and safeguards activities. Compositions of samples are used in closeout of the different operational steps. In addition, sampling is an element of the MC and A measurement control program at the faci… more
Date: October 11, 1999
Creator: Yacout, A. M.; McKnight, R. D.; Mariani, R. D.; Westphal, B. & Battisti, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Small-scale irradiated fuel electrorefining

Description: In support of the metallic fuel cycle development for the Integral Fast Reactor (IFR), a small scale electrorefiner was built and operated in the Hot Fuel Examination Facility (HFEF) at Argonne National Laboratory-West. The initial purpose of this apparatus was to test the single segment dissolution of irradiated metallic fuel via either direct dissolution in cadmium or anodic dissolution. These tests showed that 99.95% of the uranium and 99.99% of the plutonium was dissolved and separated from… more
Date: September 1, 1993
Creator: Benedict, R. W.; Krsul, J. R.; Mariani, R. D.; Park, K. & Teske, G. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fuel conditioning facility electrorefiner start-up results

Description: At ANL-West, there are several thousand kilograms of metallic spent nuclear fuel containing bond sodium. This fuel will be treated in the Fuel Conditioning Facility (FCF) at ANL-West to produce stable waste forms for storage and disposal. The treatment operations will make use of an electrometallurgical process employing molten salts and liquid metals. The treatment equipment is presently undergoing testing with depleted uranium. Operations with irradiated fuel will commence when the environmen… more
Date: May 1, 1996
Creator: Goff, K.M.; Mariani, R.D.; Vaden, D.; Bonomo, N.L. & Cunningham, S.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Criticality safety evaluation of the fuel cycle facility electrorefiner

Description: The integral Fast Reactor (IFR) being developed by Argonne National Laboratory (ANL) combines the advantages of metal-fueled, liquid-metal cooled reactors and a closed-loop fuel cycle. Some of the primary advantages are passive safety for the reactor and resistance to diversion for the heavy metal in the fuel cycle. in addition, the IFR pyroprocess recycles all the long-lived actinide activation products for casting into new fuel pins so that they may be burned in the reactor. A key component i… more
Date: September 1, 1993
Creator: Lell, R. M.; Mariani, R. D.; Fujita, E. K.; Benedict, R. W. & Turski, R. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Simulated first operating campaign for the Integral Fast Reactor fuel cycle demonstration

Description: This report discusses the Integral Fast Reactor (IFR) which is an innovative liquid-metal-cooled reactor concept that is being developed by Argonne National Laboratory. It takes advantage of the properties of metallic fuel and liquid-metal cooling to offer significant improvements in reactor safety, operation, fuel cycle-economics, environmental protection, and safeguards. Over the next few years, the IFR fuel cycle will be demonstrated at Argonne-West in Idaho. Spent fuel from the Experimental… more
Date: September 1, 1993
Creator: Goff, K. M.; Mariani, R. D.; Benedict, R. W.; Park, K. H. & Ackerman, J. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Criticality safety strategy for the Fuel Cycle Facility electrorefiner at Argonne National Laboratory, West

Description: The Integral Fast Reactor being developed by Argonne National Laboratory (ANL) combines the advantages of metal-fueled, liquid-metal-cooled reactors and a closed fuel cycle. Presently, the Fuel Cycle Facility (FCF) at ANL-West in Idaho Falls, Idaho is being modified to recycle spent metallic fuel from Experimental Breeder Reactor II as part of a demonstration project sponsored by the Department of Energy. A key component of the FCF is the electrorefiner (ER) in which the actinides are separated… more
Date: September 1, 1993
Creator: Mariani, R. D.; Benedict, R. W.; Lell, R. M.; Turski, R. B. & Fujita, E. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fate of Noble Metals during the Pyroprocessing of Spent Nuclear Fuel

Description: During the pyroprocessing of spent nuclear fuel by electrochemical techniques, fission products are separated as the fuel is oxidized at the anode and refined uranium is deposited at the cathode. Those fission products that are oxidized into the molten salt electrolyte are considered active metals while those that do not react are considered noble metals. The primary noble metals encountered during pyroprocessing are molybdenum, zirconium, ruthenium, rhodium, palladium, and technetium. Pyroproc… more
Date: September 1, 2009
Creator: Westphal, B. R.; Vaden, D.; Li, S. X.; Fredrickson, G. L. & Mariani, R. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Electrometallurgical treatment demonstration at ANL-West

Description: Electrometallurgical treatment (EMT) was developed by Argonne National Laboratory (ANL) to ready sodium-bonded spent nuclear fuel for geological disposal. A demonstration of this technology was successfully completed in August 1999. EMT was used to condition irradiated EBR-II driver and blanket fuel at ANL-West. The results of this demonstration, including the production of radioactive high-level waste forms, are presented.
Date: March 20, 2000
Creator: Goff, K. M.; Benedict, R. W.; Johnson, S. G.; Mariani, R. D.; Simpson, M. F. & Westphal, B. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Recent advances during the treatment of spent EBR-II fuel

Description: Several recent advances have been achieved for the electrometallurgical treatment of spent nuclear fuel. In anticipation of production operations at Argonne National Laboratory-West, development of both electrorefining and metal processing has been ongoing in the post-demonstration phase in order to further optimize the process. These development activities show considerable promise. This paper discusses the results of recent experiments as well as plans for future investigations.
Date: March 20, 2000
Creator: Westphal, B. R.; Mariani, R. D.; Vaden, D. E.; Sherman, S. R.; Li, S. X. & Keiser, D. D. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Material accountancy in an electrometallurgical Fuel Conditioning Facility

Description: The Fuel Conditioning Facility (FCF) treats spent nuclear fuel using an electrometallurgical process that separates the uranium from the fission products, sodium thermal bond and cladding materials. Material accountancy is necessary at FCF for two reasons: first, it provides a mechanism for detecting a potential loss of nuclear material for safeguards and security; second, it provides a periodic check of inventories to ensure that processes and material are under control. By weighing material e… more
Date: May 1, 1996
Creator: Vaden, D.; Benedict, R. W.; Goff, K. M.; Keyes, R. W.; Mariani, R. D.; Bucher, R. G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nuclear material estimation and uncertainties for the spent fuel treatment at FCF.

Description: Spent fuel from the Experimental Breeder Reactor-II (EBR-II) is treated at the Fuel Conditioning Facility (FCF) located at Argonne National Laboratory-West (ANL-W). A number of sensitive nuclear material streams are present in the facility, which mainly include material in the input spent fuel, the element chopper, the electrorefiner, the cathode processor, and the casting furnace. Different types of measurements and calculations are performed in order to estimate the amount of material in thos… more
Date: July 27, 1999
Creator: Battisti, T.; Bucher, R. G.; Krsul, J.; Mariani, R. D.; McKnight, R. D.; Vaden, D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen