Description:
A flow-sheet for the recovery of actinides from TBP-Na2CO3scrub-waste solutions has been developed, based on batch extraction data, and tested, using laboratory-scale countercurrent extraction techniques. The process, called the ARALEX process, uses 2-ethyl-1-hexanol (2-EHOH) to extract the TBP degradation products (HDBP and H/sub 2/MBP) from acidified Na2CO3scrub waste leaving the actinides in the aqueous phase. Dibutyl and monobutyl phosphoric acids are attached to the 2-EHOH molecules throug…
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Date:
August 1979
Creator:
Horwitz, E. P.; Bloomquist, C. A. A.; Mason, G. W.; Leonard, R. A. & Ziegler, A. A.
Description:
By perturbing a linear program to a quadratic program, it is possible to solve the latter in its dual variable space by iterative techniques such as successive over-relaxation (SOR) methods. This provides a solution to the original linear program.
Description:
A review was conducted during the period of mid-June to mid-August 1979, of the literature on spray combustion. Particular attention has been paid to theoretical and experimental work on droplet and spray combustion applicable to the use of alternate fuels, mainly liquid fuels derived from coal and shale.
Date:
September 1979
Creator:
Black, C. H.; Chiu, H. H.; Fischer, J. & Clinch, J. M.
Description:
A computer code has been developed which permits the determination of tritium reaction (T2 to HTO)/adsorption/release and instrument correction parameters from enclosure (building) - detritiation test data. The code is based on a simplified model which treats each parameter as a normalized time-independent constant throughout the data-unfolding steps. Because of the complicated four-dimensional mathematical surface generated by the resulting differential equation system, occasional local-minima…
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Date:
1979?
Creator:
Land, Robert H.; Land, Robert H.; Maroni, V. A. & Minkoff, Michael
Description:
Both 2F di-n-amyl-n-amylphosphonate in n-dodecane (DA(AP)-DD) and 0.77F tricaprylmethylammonium nitrate in Aromatic 100 (TCMA.NO/sub 3/-AR100) extract uranium and thorium into relatively concentrated organic solutions. Countercurrent-flow tests with each extractant have demonstrated effective uranium-thorium separations by selective stripping from the organic phase. Both extractants offer advantageous alternatives to tributylphosphate (Thorex) in reprocessing irradiated mixed ThO2-UO2 fuels. Fo…
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Description:
A small ruby laser adapted to fire through a microscope is used to release fission gases from specific sites on a plane surface of an irradiated fuel specimen. Interaction of the focused laser pulse with the specimen surface results in a conical crater from which sampled material has been vaporized; the crater is surrounded by a heat-affected zone in which intergranular fracture and grain separation allow release of grain-boundary gases. Procedures for measuring the amount of krypton-85 release…
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Date:
October 1979
Creator:
Graczyk, D. G.; Bandyopadhyay, G.; Gehl, S. M.; Hughes, J. P. & Goodspeed, H. T.
Description:
Annual report of the Argonne National Laboratory Chemical Engineering Division regarding studies of nuclear waste migration in geologic media. This report discusses research regarding confinement of nuclear waste in geologic formations as a method of permanently disposing of the waste.
Date:
March 1978
Creator:
Argonne National Laboratory. Chemical Engineering Division.
Description:
Subassembly XX08 is a fueled and instrumented subassembly designed primarily for an ongoing program to investigate the thermal-hydraulic core environment within EBR-II under normal and off-normal plant operating conditions. XX08 contains 58-xenon-tagged, EBR-II Mark-II driver-fuel elements. The Mark-II fuel is expected to provide XX08 with an irradiation lifetime three times as great as that attained with its predecessor, XX07, i.e., a 9 versus 2.9% burnup. A burnup of 9 at.% is equivalent to a…
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Date:
May 1978
Creator:
Smaardyk, A.; Filewicz, E. C.; Longnecker, A. A.; Poloncsik, J.; Tokar, J. V.; Walker, D. E. et al.
Description:
Report of the Argonne National Laboratory Chemical Engineering Division on fuel-cycle studies including pyro-chemical separation of plutonium and americium oxides from contaminated materials of construction such as steel, advanced solvent extraction techniques in the development of centrifugal contactors for use in Purex processes, and a review and evaluation of the encapsulation of high-level waste in a metal matrix.
Date:
1978?
Creator:
Steindler, M. J.; Ader, M.; Bernstein, G.; Flynn, K. F.; Gerding, T. J.; Jardine, L. J. et al.
Description:
Evaluation of melt-slagging techniques as a decontamination and consolidation step for metals contaminated with oxides of plutonium and americium.
Date:
June 1979
Creator:
Argonne National Laboratory. Chemical Engineering Division.
Description:
A nondestructive autoradiographic technique is described which can provide a verification of the piece count and the plutonium content of plutonium-containing fuel elements. This technique uses the spontaneously emitted gamma rays from plutonium to form images of fuel elements on photographic film. Autoradiography has the advantage of providing an inventory verification without the opening of containers or the handling of fuel elements. Missing fuel elements, substitution of nonradioactive mate…
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Description:
Quarterly report of the Argonne National Laboratory Materials Science Division regarding coal technologyresearch and development. This report summarizes the work performed in six major tasks: evaluation of ceramic refractories, evaluation of ceramic coatings and refractories, development of nondestructive testing methods for use in coal plant fabrication, development of computer models to predict corrosion behavior, computer models to predict erosion behavior, and analysis of pilot-plant compo…
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Description:
The complete high-plutonium-240 fuel experiment in ZPPR assembly 4 is reviewed. Results of criticality, enrichment, small-sample perturbation, sodium void, uranium-238 Doppler, control rod substitution and reaction rate measurements are presented. Comparison of these measured values with calculated results are included where possible. The relationship between the ZPPR high-plutonium-240 fuel experiments and the results obtained in previous critical experience is considered.
Description:
Three-dimensional radiographic methods provide a means of determining the depth of defect indications and minimizing the confusion that results from overlapping images of structures at various depths in an object. One method of obtaining and displaying three-dimensional radiographic images is multiple-film laminagraphy, i.e., a series of radiographic films taken at different orientations can be viewed superimposed to present a sharply focused image of any desired object plane. Methods that use …
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Description:
Quarterly progress report summarizing work done in Argonne National Laboratory's Applied Physics Division including: reactor safety research and technical coordination of the RSR safety analysis program by members of the Reactor Safety Appraisals Group, Monte Carlo analysis of safety-related critical assembly experiments by members of the Theoretical Fast Reactor Physics Group, and planning of DEMO safety-related critical experiments by members of the Zero Power Reactor (ZPP) Planning and Exper…
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Date:
1976?
Creator:
Argonne National Laboratory. Applied Physics Division.
Description:
Ultrasonic inspection of large-grain stainless steel and stainless steel welds is difficult, and the results obtained are not easily interpreted. In the present study, the effects of stainless steel microstructure on ultrasonic test results are described, and several signal-processing techniques for enhancing ultrasonic flaw signals are discussed.
Description:
This research was done as a support study for the SYNTHOIL process and other coal liquefaction processes being developed to produce clean liquid fuels from coal. The objective of this work is to obtain experimental data on flow characteristics for upward flow of gas-liquid-solid mixtures in vertical tubes simulating conditions in the SYNTHOIL process. Study of the transport phenomena of multiphase mixtures is of importance to many chemical engineering operations in general and to some other coa…
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Date:
January 1977
Creator:
Javdani, Kambiz; Schwalbe, Steven & Fischer, Jack
Description:
A development program is being carried out to obtain information applicable to the SYNTHOIL process for converting coal to liquid fuel of low sulfur content. This report presents information on (1) the design of a calorimeter to measure heat of reaction of hydrogen with coal slurries, (2) the design of apparatus and calculations for measuring coefficients of heat transfer from SYNTHOIL process feed and effluent products to process vessel walls, (3) tests on the use of additives to facilitate th…
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Date:
1976?
Creator:
Fischer, J.; Bump, T. R.; Mulcahey, T. P.; Jonke, A. A.; Lo, R.; Nandi, S. et al.
Description:
Technology utilization/commercialization is the process of applying technology to satisfy a preexisting need. The present report examines the organizational relationships involved, the controlling factors, and the role of the technology agent. Included is a brief assessment of the technology commercialization activities currently under way as part of specific research and development projects at Argonne National Laboratory. In addition to the usual supporting references, an appendix is devoted …
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Description:
In the development of lithium-aluminum/iron sulfide secondary cells at Argonne National Laboratory, an instrumentation system was necessary to automatically operate experimental cells over extended periods of times. The system described in this report provides the capability for control of cell cycling and recording of data without the need for constant attendance by research personnel. In these tests, electrical performance, power, energy storage capacity cycle-life and cell lifetimes are dete…
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Description:
A collection of benchmark problems is used to test the finite-strain formulation of the LIFE-III fast-reactor fuel-element code. Analytical solutions for thick-wall cylinders loaded by internal and external pressure, valid for arbitrarily large strains, are presented for a linear viscous material. Similar problems are formulated for a nonlinear material, and numerical solutions are obtained using the Runge-Kutta method for the integration of an ordinary differential equation. These solutions ar…
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Date:
November 1976
Creator:
Shack, W. J.; Jankus, V. Z. & Billone, Michael C.
Description:
Progress report on water-reactor-safety heat-transfer and flow problems. Covering the following research and development areas: loss-of-coolant accident research, transient fuel response and fission-product release program, mechanical properties of zircaloy containing oxygen, and steam-expulsion studies.
Description:
One of the important issues related to fluidized bed combustion of fossil fuels is the subsequent handling and/or treatment of the partially sulfated lime material removed from the combustor. One alternative would be to regenerate the sulfated additive to recover the sulfur, which would be stored for use, and lime that would be recycled for reuse in the combustor. It is the purpose of this report to review the development of regeneration technology which has progressed rather slowly as compared…
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Date:
December 1976
Creator:
Swift, W. M.; Panek, Allen F.; Smith, G. W.; Vogel, G. J. & Jonke, A. A.
Description:
The corrosive and erosive environments at high temperatures and pressures in coal gasifiers impose severe requirements on the alloys of fabrication. A concise review of the application of ceramic coatings to resist coal-gas environments has been conducted. The purpose of this review is to explore suitable ceramic or cermet materials that may resist or retard the degradation of metal components and to summarize the state of the art of various methods of producing such coatings.
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