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Application of pressurized ion exchange to separations of transplutonium elements

Description: High-pressure ion exchange chromatography, used first for nucleic acid separations, was applied to the production of the heavier actinides, particularly the transcurium elements. Its use at the TRU plant is described. Future developments are considered briefly. (DLC)
Date: January 1, 1980
Creator: Campbell, D.O.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Preparation of curium-americium oxide microspheres by resin-bead loading

Description: Resin-bead loading and calcination techniques have been used to produce all curium and americium oxide feed material (about 2.2 kg) for HFIR targets since 1971. The process based on Dowex 50W resin has progressed from a series of test runs, through special production runs, into routine production in permanent equipment beginning in 1975. Key attributes of this process are its reliability, high yields, and ease of operation. The process is suited for remote operation in hot cells. Yields approac… more
Date: January 1, 1980
Creator: Chattin, F. R.; Benker, D. E.; Lloyd, M. H.; Orr, P. B.; Ross, R. G. & Wiggins, J. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Sampling and analysis of trace-organic constituents in ambient and workplace air at coal-conversion facilities

Description: A review of the recent literature reveals that current sampling procedures involve the use of glass fiber filters for particulate-sorbed organics and sorbent resins such as Tenax GC and XAD-2 for vapor-phase organics. Ultra trace-organic analysis of air pollutants or particulates may require the collection of a large (1000 to 3000 m/sup 3/) sample by a high volume air sampler. Personal air sampling requires a smaller (approx. = 0.5 m/sup 3/) and a portable collection apparatus. Trapped organic … more
Date: July 1, 1980
Creator: Flotard, R D
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Properties of radioactive wastes and waste containers. Quarterly progress report, April-June 1980

Description: A study was initiated to determine the effect of varying V/S (the ratio of the waste form volume to its surface area) on the leachability of radioisotopes incorported in cement forms. Cesium-137 and strontium-85 mixed with a simulated formulation of waste derived from forced recirculation evaporator bottoms of LWR's were solidified in portland II cement. The V/S ratios of the forms varied from 0.41 to 2.77. The resulting forms were leached using a modified IAEA procedure. Leaching data indicate… more
Date: August 1, 1980
Creator: Morcos, N. & Weiss, A.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Phenolic resin syntactic foams

Description: Syntactic foams were prepared from blends of six phenolic resins and carbon microbubbles. The compressive strength of the phenolic resin foams is equivalent to the strength of foams made from a polyimide resin. Ammonia evolved during the cure diffuses rapidly and is not bound by the foam.
Date: June 1, 1980
Creator: McIlroy, H. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of sheet molding compound solar collectors with molded-in silvered glass reflective surfaces

Description: An approach to the fabrication of a line-focusng parabolic trough reflector structure which offers the potential of high performance while utilizing mass production type technology with potential for low cost is discussed. The concept is one of a molded structure of fiber reinforced plastic with an integrally molded silvered glass reflective surface. Sheet molding compound (SMC), a mixture of glass fibers and inorganic fillers in polyester resin, has been selected for evaluation as representati… more
Date: January 1, 1980
Creator: Champion, R. L. & Allred, R. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Industrial process heat case studies. [PROSYS/ECONMAT code]

Description: Commercially available solar collectors have the potential to provide a large fraction of the energy consumed for industrial process heat (IPH). Detailed case studies of individual industrial plants are required in order to make an accurate assessment of the technical and economic feasibility of applications. This report documents the results of seven such case studies. The objectives of the case study program are to determine the near-term feasibility of solar IPH in selected industries, ident… more
Date: May 1, 1980
Creator: Hooker, D.W.; May, E.K. & West, R.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chromatographic cation exchange separation of decigram quantities of californium and other transplutonium elements

Description: Decigram quantities of highly radioactive transplutonium elements are routinely partitioned at TRU by chromatographic elution from cation resin using AHIB eluent. By using two high-pressure ion exchange columns, a small one for the initial loading of the feed and a large one for the elution, batch runs containing up to 200 mg of /sup 252/Cf can be made in about 5 hours (2 hours to load the feed and 3 hours for the elution). The number of effluent product fractions and the amount of actinides th… more
Date: January 1, 1980
Creator: Benker, D. E.; Chattin, F. R.; Collins, E. D.; Knauer, J. B.; Orr, P. B.; Ross, R. G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Distribution Ratios on Dowex 50w Resins of Metal Leached in the Caron Nickel Recovery Process

Description: Pressurized ion exchange on Dowex 50W-X8 and 50W-X12 resins was investigated using elution techniques to determine distribution ratios for copper, nickel, and cobalt complexes contained in ammonium carbonate solution, a mixture which approximates the waste liquor from the Caron nickel recovery process. Results were determined for different feed concentrations, as well as for different concentrations and pH values of the ammonium carbonate eluant. Distribution ratios were compared with those pre… more
Date: May 1, 1980
Creator: Reynolds, B. A.; Metsa, J. C. & Mullins, M. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Multilayer printed wiring board lamination

Description: The relationship of delamination resistance of multilayer PWBs made from GF material to manufacturing process variables was investigated. A unique quantitative test method developed during this project shows that delamination resistance is highly sensitive to material conditioning, to innerlayer surface treatment, and to post-lamination storage conditions, but is relatively insensitive to cure cycle variations.
Date: June 1, 1980
Creator: Lula, J.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geothermal well stimulation

Description: All available data on proppants and fluids were examined to determine areas in technology that need development for 300 to 500/sup 0/F (150/sup 0/ to 265/sup 0/C) hydrothermal wells. While fluid properties have been examined well into the 450/sup 0/F range, proppants have not been previously tested at elevated temperatures except in a few instances. The latest test data at geothermal temperatures is presented and some possible proppants and fluid systems that can be used are shown. Also discuss… more
Date: January 1, 1980
Creator: Sinclair, A. R.; Pittard, F. J. & Hanold, R. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Resin bead U and PU analysis of WAK input solutions: a statistical summary of experiment No. 1

Description: A statistical analysis of the resin bead experimental data was made to identify sources of variations among the measurements of isotopic atom ratios and elemental concentrations of plutonium and uranium. Comparisons among treatment means of the analytical laboratory and the resin bead preparation methods are tabulated using Duncan's multiple range test.
Date: June 1, 1980
Creator: Bayne, C. K.; Carter, J. A.; Smith, D. H. & Walker, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electrochemical form grinding. Fnal report

Description: Electrochemical form grinding cutting tests were performed on 25 17-4 PH stainless steel bars by a copper resin aluminum oxide wheel formed from a diamond form block. Tests investigated methods of dressing a form into a grinding wheel, nozzle design, optimum machine settings, and tolerance capabilities. The electrolyte was distributed evenly onto the wheel by a form-fitting nozzle, and a minimum of two passes, rough and finish, were made because of current density variations throughout the cut.… more
Date: June 1, 1980
Creator: Stiles, R.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the Low-Level Waste Treatment Plant at Oak Ridge National Laboratory, and suggested changes in the design and operation

Description: The operation of the Low-Level Waste Treatment (LLWT) Plant was monitored for one month to determine why the precipitation-filtration step failed to remove the normal amount of hardness. Each of the three resin beds loaded with Duolite CS-100 resin was taken through one loading-elution cycle. The primary radioactivity in this waste is /sup 90/Sr and /sup 137/Cs, and, under optimum conditions, the plant discharges about 0.015 dpm/ml of /sup 90/Sr and 0.06 dpm/ml of /sup 137/Cs. Although no stron… more
Date: March 1, 1980
Creator: Chilton, J.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of two polyurethane resins for injection shimming of the MFTF magnet

Description: This work was conducted to support selection of a filler for the injection shimming of the MFTF Magnet (Reference 1). Two candidate polyurethanes (Pplycast RG256-57-3 and Polycast 1009-78 manufactured by CPR Upjohn Co.) were evaluated with respect to their physical and mechanical properties. Physical properties examined include thermal contraction, viscosity, and cure shrinkage. Mechanical properties include thermal shock resistance, compression modulus, and compression strength at LH/sub 2/ te… more
Date: January 1, 1980
Creator: Steger, V.Y. & Ring, D.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiation stability of sodium titanate ion exchange materials

Description: Sodium titanate and sodium titanate loaded macroreticular resin are being considered as ion exchangers to remove /sup 90/Sr and actinides from the large volume of defense waste stored at Hanford Site in Washington. Preliminary studies to determine the radiation effect on Sr/sup +2/ and I/sup -/ capacity of these ion-exchange materials were conducted. Samples of sodium titanate powder, sodium titanate loaded macroreticular resin, as well as the nitrate form of macroreticular anion resin were irr… more
Date: February 1, 1980
Creator: Kenna, B.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fabrication of a Kevlar liner assembly

Description: Several liner assemblies were fabricated with Kevlar 49 and epoxy using various wet layup and prepreg processes. A production process, using prepreg material, was developed for fabricating the liner and a wet layup molding process was used to fabricate the Kevlar hat-shaped tunnels. Fabrication of the tunnels using Kevlar prepreg with an autoclave curving process was evaluated.
Date: July 1, 1980
Creator: Schloman, A.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of fiberglass-filled diallyl phthalate plastic molding resins and molded parts

Description: Characterization of diallyl phthalate (DAP) molding resins was undertaken by differential scanning calorimetry (DSC) and by combined size exclusion chromatography (SEC)/low angle laser light scattering (LALLS) in order to better predict moldability and storage life limits. Completeness of cure of molded parts, before and after any post-curing, was also determined by thermal analysis. Molecular weights and molecular weight distributions of the DAP molding resins by SEC/LALLS indicated that the b… more
Date: December 1, 1980
Creator: Whitaker, R.B.; Glaub, J.E.; Bonekowski, N.R. & Gillham, P.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermomechanical characterization of graphite/polymide composites. [Stiffness; strength; shear properties]

Description: The stiffness, strength and shear properties of three polyimide resins (NR-150B2, PMR-15 and CPI-2237) combined with three different moduli graphite fibers (C-6000, F-5A and GY-70) were determined at 20 to 371/sup 0/. Stiffness retention with increasing temperature is affected only by the thermal integrity of the polymide matrix. No loss in modulus occurs up to 316/sup 0/C for the PMR-15 and CPI-2237 based composites (T/sub g/ = 377/sup 0/C) or to 260/sup 0/C for the NR-150B2 based material (T/… more
Date: January 1, 1980
Creator: Kunz, S. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Syntactic foam composites and bonding. Final report

Description: A manufacturing process has been developed to produce billets molded from a composite of carbon microspheres, a polyimide resin, and carbon fibers. The billets then are machined to configuration which results in extremely sharp and fragile edges on one part. To strengthen these parts, a parylene coating is applied, after which the parts are assembled with other parts by bonding. Bonding and assembly problems are discussed in detail; other problems encountered are summarized, and several are ref… more
Date: September 1, 1980
Creator: McWhirter, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Properties of radioactive wastes and waste containers. Quarterly progress report, January-March 1980

Description: Solidification experiments were performed with organic ion-exchange resins using Portland type II cement to investigate waste to binder ratios which result in monolithic waste forms. Test results are provided in tabular form showing formulations which result in considerable swelling, cracking, or splitting of the specimens upon solidification. The range of waste loadings which produce monolithic waste forms is given. Experiments were conducted to establish appropriate waste/binder ratios within… more
Date: May 1, 1980
Creator: Manaktala, H.K. & Weiss, A.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High resolution, low cost solar cell contact development. Quarterly technical progress and schedule report, September 28, 1980

Description: The scope of the contract covers the development and evaluation of forming solar cell collector grid contacts by the MIDFILM process. This is a proprietary process developed by the Ferro Corporation which is a subcontractor for the program. The MIDFILM process attains line resolution characteristics of photoresist methods with processing related to screen printing. The surface to be processed is first coated with a thin layer of photoresist material. Upon exposure to ultraviolet light through a… more
Date: January 1, 1980
Creator: Mardesich, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of iodine-129 in mixed fission products by neutron activation analysis

Description: This report describes an improved method for analyzing /sup 129/I in fission product mixtures originating from fuel reprocessing studies. The method utilizes conventional iodine valence adjustment and solvent extraction techniques to chemically separate /sup 129/I from most fission products. The /sup 129/I is then determined by neutron irradiation and measurement of the 12.4-h /sup 130/I produced by the neutron capture reaction. Special techniques were devised for neutron irradiation of /sup 12… more
Date: October 1, 1980
Creator: Bate, L. C. & Stokely, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Diffusion Mechanisms and Degradation of Environmentally Sensitive Composite Materials. Progress Report, July 1, 1979-June 30, 1980

Description: Progress not previously discussed in reports COO-4440-4 through COO-4440-6 is summarized. Moisture diffusion results in unstressed epoxy samples obtained last year (below 70/sup 0/C) suggested the presence of a 2-phase structure in the cured epoxy resin. Chemical etching studies initiated this year further confirm the existence of this structure. Also, diffusion results obtained at 95/sup 0/C demonstrate a reversal in the trend of diffusivity versus crosslink density as observed on the same sam… more
Date: April 1, 1980
Creator: Broutman, Lawrence J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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