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System for vacuum pouring of epoxy tensile and impact specimens with a study of the behavior of these specimens at 77 K and 293 K

Description: The purpose of the investigation was to establish a suitable technique for vacuum pouring of epoxy test specimens and to study the behavior of these specimens at 77 K and 293 K. A series of tensile and impact tests was conducted using specimens made from the following resins: Epon 828, Epon 871, and Epon curing agent Z. These materials are of general interest to designers of magnets for cryogenic service. Tests of the specimens were carried out at 77 K and 293 K. The 77 K data indicate that ten… more
Date: March 31, 1978
Creator: Fitzpatrick, C.M. & Stoddart, W.C.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Selective flotation of fossil resin from western coal

Description: Economic analysis of this fossil resin project mainly focused on the flotation plant which is intended to be designed with data obtained from the current proof-of-concept flotation test program. It is believed that the analysis of this step is fairly accurate. The other two economic aspects of fossil in resin recovery/utilization are refining and marketing. Cost data used for refining were from an estimated base and are believed to have a large variance. Marketing data used were obtained from t… more
Date: March 30, 1992
Creator: Jensen, G. F. & Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal gasification vessel. [Patent application]

Description: A vessel system comprises an outer shell of carbon fibers held in a binder, a coolant circulation mechanism and control mechanism and an inner shell comprised of a refractory material and is of light weight and capable of withstanding the extreme temperature and pressure environment of, for example, a coal gasification process. The control mechanism can be computer controlled and can be used to monitor and modulate the coolant which is provided through the circulation mechanism for cooling and … more
Date: March 17, 1981
Creator: Loo, Billy W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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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

Sizing a water softener for aquifer thermal energy storage

Description: In aquifer thermal energy storage (ATES) installations, ground water is circulated between an aquifer and heat exchangers via a well field. It is often necessary to soften the water to prevent carbonate scaling in pipes, heat exchangers, and well screens. Most ATES projects requiring water softening will be best served by using synthetic ion-exchange resins. The size of the resin beds, the resin regeneration cycle, and the amount of NaCl brine used in each regeneration depend on several factors… more
Date: March 1, 1993
Creator: Hall, S. H. & Jenne, E. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiation Damage to Organic Ion-Exchange Materials

Description: From abstract: "The stability of polystyrene and phenolic ion-exchange resins to radiation from a Co60 source and from absorbed Ce144-PR144 was investigated. Sulfonated polystyrene cation-exchange resins lost 10 to 20% of their capacity per watt-hour of radiation absorbed per gram of oven-dry resin, while the quaternary amine anion-exchange polystyrene resins lost about 40%. Phenolic cation-exchange resins lost only 1%."
Date: March 16, 1953
Creator: Higgins, I. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cesium removal from Hanford tank waste

Description: Researchers at PNL are developing ion exchange processes to remove cesium from high salt, alkaline tank wastes at the Hanford site. The separated cesium will be concentrated and vitrified for disposal in the High-Level Waste Repository. The low-level waste fraction containing the majority of the waste constituents will be solidified in a grout waste form for disposal in underground concrete vaults. While the treatment and disposal requirements are still being defined, one goal is to remove enou… more
Date: March 1, 1993
Creator: Kurath, D. E.; Richmond, W. G.; Jones, E. O.; Bray, L. A. & Bunker, B. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Sizing a water softener for aquifer thermal energy storage

Description: In aquifer thermal energy storage (ATES) installations, ground water is circulated between an aquifer and heat exchangers via a well field. It is often necessary to soften the water to prevent carbonate scaling in pipes, heat exchangers, and well screens. Most ATES projects requiring water softening will be best served by using synthetic ion-exchange resins. The size of the resin beds, the resin regeneration cycle, and the amount of NaCl brine used in each regeneration depend on several factors… more
Date: March 1, 1993
Creator: Hall, S. H. & Jenne, E. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Release of radionuclides and chelating agents from cement-solidified decontamination low-level radioactive waste collected from the Peach Bottom Atomic Power Station Unit 3

Description: As part of a study being performed for the Nuclear Regulatory Commission (NRC), small-scale waste-form specimens were collected during a low oxidation-state transition-metal ion (LOMI)-nitric permanganate (NP)-LOMI solidification performed in October 1989 at the Peach Bottom Atomic Power Station Unit 3. The purpose of this program was to evaluate the performance of cement-solidified decontamination waste to meet the low-level waste stability requirements defined in the NRC`s ``Technical Positio… more
Date: March 1, 1994
Creator: Akers, D. W.; Kraft, N. C. & Mandler, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Shock characterization of quartz phenolic composite

Description: Goal was to obtain dynamic mechanical property data on a quartz phenolic (abbreviated QP) composite. Shock loading and shock release measurements have been conducted using impact techniques utilizing both a light-gas gun and a powder gun at impact pressures up to 20 GPa. The primary diagnostic tool used was a velocity interferometer. The data analysis includes Hugoniot measurements to give both pressure-particle velocity and shock velocity-particle velocity relationships; spall measurements to … more
Date: March 1, 1994
Creator: Weirick, L. J. & Chhabildas, L. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Selective flotation of fossil resin from western coal. A special report comprising: Monthly report for December 1991--April 1992 and Quarterly reports for December 1, 1991--February 29, 1992

Description: The test program has demonstrated that: (1) technically, the new flotation technologies discovered at the University of Utah and then improved upon by Advanced Processing Technologies, Inc. provide a highly efficient means to selectively recover fossil resin from coal. The proof-of-concept continuous flotation circuit resulted in fossil resin recovery with the same separation efficiency as was obtained from laboratory bench-scale testing (more than 80% recovery at about 80% concentrate grade); … more
Date: March 20, 1992
Creator: Jensen, G. F. & Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Selective flotation of fossil resin from western coal

Description: The test program has demonstrated that: (1) technically, the new flotation technologies discovered at the University of Utah and then improved upon by Advanced Processing Technologies, Inc. provide a highly efficient means to selectively recover fossil resin from coal. The proof-of-concept continuous flotation circuit resulted in fossil resin recovery with the same separation efficiency as was obtained from laboratory bench-scale testing (more than 80% recovery at about 80% concentrate grade); … more
Date: March 20, 1992
Creator: Jensen, G. F. & Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ANALYSIS OF VENTING OF A RESIN SLURRY

Description: A resin slurry venting analysis was conducted to address safety issues associated with overpressurization of ion exchange columns used in the Purex process at the Savannah River Site (SRS). If flow to these columns were inadvertently interrupted, an exothermic runaway reaction could occur between the ion exchange resin and the nitric acid used in the feed stream. The nitric acid-resin reaction generates significant quantities of noncondensable gases, which would pressurize the column. To preven… more
Date: March 27, 2012
Creator: Laurinat, J. & Hensel, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Low Cost, High Efficiency, High Pressure Hydrogen Storage

Description: A technical and design evaluation was carried out to meet DOE hydrogen fuel targets for 2010. These targets consisted of a system gravimetric capacity of 2.0 kWh/kg, a system volumetric capacity of 1.5 kWh/L and a system cost of $4/kWh. In compressed hydrogen storage systems, the vast majority of the weight and volume is associated with the hydrogen storage tank. In order to meet gravimetric targets for compressed hydrogen tanks, 10,000 psi carbon resin composites were used to provide the high … more
Date: March 31, 2010
Creator: Leavitt, Mark
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Selective Flotation of Fossil Resin From Western Coal. Quarterly Report, August 31, 1991--November 30, 1991

Description: Economic analysis of this fossil resin project mainly focused on the flotation plant which is intended to be designed with data obtained from the current proof-of-concept flotation test program. It is believed that the analysis of this step is fairly accurate. The other two economic aspects of fossil in resin recovery/utilization are refining and marketing. Cost data used for refining were from an estimated base and are believed to have a large variance. Marketing data used were obtained from t… more
Date: March 30, 1992
Creator: Jensen, Gordon F. & Miller, Jan D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Diphonix: A new ion exchange resin for the treatment of industrial waste streams, contaminated groundwaters, and mixed-wastes

Description: The resin contains geminally substituted diphosphonic acid functional groups; it is synthesized by copolymerization of a tetralkylvinylidene diphosphonate with styrene, divinylbenzene, and acrylonitrile, followed by deesterifaction by refluxing with conc. HCl (the nitrile group is hydrolyzed to a carboxylic acid). The diphosphonic acid functional dominates the resin behavior toward metal ions; it has strong affinity for actinides in all oxidation states, even in 10 M HNO{sub 3} and high salt co… more
Date: March 1, 1994
Creator: Horwitz, E. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Modeling of field lysimeter release data using the computer code dust

Description: In this study, it was attempted to match the experimentally measured mass release data collected over a period of seven years by investigators from Idaho National Engineering Laboratory from the lysimeters at Oak Ridge National Laboratory and Argonne National Laboratory using the computer code DUST. The influence of the dispersion coefficient and distribution coefficient on mass release was investigated. Both were found to significantly influence mass release over the seven year period. It is r… more
Date: March 1, 1993
Creator: Sullivan, T. M.; Fitzgerald, I. T.; McConnell, J. W. & Rogers, R. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

RAPID MEASUREMENTS OF NEPTUNIUM OXIDATION STATES USING CHROMATOGRAPHIC RESINS

Description: The Savannah River Site's (SRS) H-Canyon facility uses ceric ammonium nitrate (CAN) to separate impure neptunium (Np) from a high sulfate feed stream. The material is processed using a two-pass solvent extraction purification which relies on CAN to oxidize neptunium to Np(VI) during the first pass prior to extraction. Spectrophotometric oxidation-state analyses normally used to validate successful oxidation to Np(VI) prior to extraction were compromised by this feed stream matrix. Therefore, a … more
Date: March 24, 2009
Creator: Diprete, D; C Diprete, C; Mira Malek, M & Eddie Kyser, E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Silicon Carbide Ceramics for Compact Heat Exchangers

Description: Silicon carbide (SiC) materials are prime candidates for high temperature heat exchangers for next generation nuclear reactors due to their refractory nature and high thermal conductivity at elevated temperatures. This research has focused on demonstrating the potential of liquid silicon infiltration (LSI) for making SiC to achieve this goal. The major advantage of this method over other ceramic processing techniques is the enhanced capability of making high dense, high purity SiC materials in … more
Date: March 26, 2009
Creator: Nagle, Dennis & Zhang, Dajie
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Preliminary Analysis of Dose Rates Associated with ITER CVCS Equipment/Area Location

Description: A preliminary analysis of the ITER Chemical and Volume Control System (CVCS) Area was performed to assess dose rates outside the walls and ceiling of the facility after 1.5 years of operation at shutdown, 2 days, and 10 days after shutdown. For this purpose a simplified Monte Carlo computer model was developed using the MCNP (MCNP5 Ver. 1.51) code. Two components are included: the smaller filter tank and the larger ion exchanger. These pieces of equipment are associated with the Integrated Blan… more
Date: March 1, 2012
Creator: Blakeman, Edward D; Ilas, Dan & Petrov, Andrei Y
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

APPLICATION OF COLUMN EXTRACTION METHOD FOR IMPURITIES ANALYSIS ON HB-LINE PLUTONIUM OXIDE IN SUPPORT OF MOX FEED PRODUCT SPECIFICATIONS

Description: The current mission at H-Canyon involves the dissolution of an Alternate Feedstocks 2 (AFS-2) inventory that contains plutonium metal. Once dissolved, HB-Line is tasked with purifying the plutonium solution via anion exchange, precipitating the Pu as oxalate, and calcining to form plutonium oxide (PuO{sub 2}). The PuO{sub 2} will provide feed product for the Mixed Oxide (MOX) Fuel Fabrication Facility, and the anion exchange raffinate will be transferred to H-Canyon. The results presented in th… more
Date: March 20, 2012
Creator: Jones, M.; Diprete, D. & Wiedenman, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary Safety Design Report for Remote Handled Low-Level Waste Disposal Facility

Description: A new onsite, remote-handled low-level waste disposal facility has been identified as the highest ranked alternative for providing continued, uninterrupted remote-handled low-level waste disposal for remote-handled low-level waste from the Idaho National Laboratory and for nuclear fuel processing activities at the Naval Reactors Facility. Historically, this type of waste has been disposed of at the Radioactive Waste Management Complex. Disposal of remote-handled low-level waste in concrete disp… more
Date: March 1, 2012
Creator: Solack, Timothy & Mason, Carol
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Seqestration of dissolved organic carbon in the deep sea

Description: There are 600 GT of dissolved organic carbon (DOC) sequestered in seawater. The marine inventory of DOC is set by its concentration in the deep sea, which is nearly constant at 35+2µM C, irrespective of sample location or depth. Isotopic measurements show deep sea DOC to be depleted in radiocarbon, with an apparent radiocarbon age of between 4000ybp (Atlantic) and 6000ybp (Pacific). From the radiocarbon data, we can infer that deep sea DOC is inert and does not cycle on less than millennial tim… more
Date: March 1, 2006
Creator: Repeta, Daniel J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Natural Fiber Composites: A Review

Description: The need for renewable fiber reinforced composites has never been as prevalent as it currently is. Natural fibers offer both cost savings and a reduction in density when compared to glass fibers. Though the strength of natural fibers is not as great as glass, the specific properties are comparable. Currently natural fiber composites have two issues that need to be addressed: resin compatibility and water absorption. The following preliminary research has investigated the use of Kenaf, Hibiscus … more
Date: March 7, 2010
Creator: Westman, Matthew P.; Fifield, Leonard S.; Simmons, Kevin L.; Laddha, Sachin & Kafentzis, Tyler A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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