88 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Lithium Chlorides"  
prev Results: 49 - 72 next
open access

Characteristics and development report for the MC3714 thermal battery

Description: This report describes the design intent, design considerations, system use, development, product characteristics, and early production history of the MC3714 Thermal Battery. This battery has a required operating life of 146 s above 24.0 V with a constant current load of 0.5 A. It is activated when the MC3830 Actuator initiates the WW42C1 Percussion Primer in the battery. The MC3714 employs the Li(Si)/LiCl-CCl/lithiated FeS{sub 2} electrochemical system. The battery is a hermetically sealed righ… more
Date: August 1, 1990
Creator: Scharrer, G. L. & Lasky, F. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A shuttle mechanism for molten-electrolyte lithium batteries

Description: The lithium-transport rates arising from a lithium shuttle mechanism (LSM) were examined by potentiometric control of a lithium-alloy electrode in a temperature range of 400 to 515{degrees}C in three electrolytes: LiCl-KCl, LiCl-LiBr-KBr, and LiF-LiCl-LiBr. Lithium transport in Li/FeS{sub x} cells by LSM was found to occur by diffusion of reduced lithium species across the separator layer, which was controlled by the Li-activity of the Li-alloy electrode. Solubility of lithium was strongly affe… more
Date: November 1, 1993
Creator: Kaun, T. D. & Nelson, P. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Use of porous MgO in pyrochemical applications

Description: Pyrochemical methods for the extraction of transuranic elements from light water reactor spent fuel require a reduction step in which the oxide fuel is reduced to metals by Li in molten LiCl. The Li{sub 2}O formed is electrolytically reduced to metal in a cell that uses a carbon (or inert) anode and a Li cathode to recycle the salt and minimize the waste. Use of a carbon anode causes carbon dust that interferes with the process. Moreover, current efficiency is reduced as a result of oxidation o… more
Date: November 1, 1994
Creator: Maiya, P. S.; Sweeney, S. M.; Carroll, L. A. & Dusek, J. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of Porous Sintered-Ceramic Separators for Application in a Li--Al/LiCl--KCl/FeS Battery

Description: The procedure for fabrication of porous sintered-ceramic separators and the technical feasibility of using such separators in Li-Al/molten LiCl-KCl/FeS battery cells have been investigated. Processing techniques have been developed to fabricate ~1.5-2.5 mm thick, ~35-60% porous, flat, sintered Y{sub 2}O{ sub 3} and MgO separator plates with sufficient strength to allow handling prior to and during cell assembly. These separators performed successfully in laboratory-scale cells for up to ~2000 h… more
Date: May 1, 1979
Creator: Bandyopadhyay, G.; Dusek, J. T. & Galvin, T. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Hydrous metal oxide catalysts for oxidation of hydrocarbons

Description: This report describes work performed at Sandia under a CRADA with Shell Development of Houston, Texas aimed at developing hydrous metal oxide (HMO) catalysts for oxidation of hydrocarbons. Autoxidation as well as selective oxidation of 1-octene was studied in the presence of HMO catalysts based on known oxidation catalysts. The desired reactions were the conversion of olefin to epoxides, alcohols, and ketones, HMOs seem to inhibit autoxidation reactions, perhaps by reacting with peroxides or ra… more
Date: July 1, 1993
Creator: Miller, J. E.; Dosch, R. G. & McLaughlin, L. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Partition of actinides and fission products between metal and molten salt phases: Theory, measurement, and application to IFR pyroprocess development

Description: The chemical basis of Integral Fast Reactor fuel reprocessing (pyroprocessing) is partition of fuel, cladding, and fission product elements between molten LiCl-KCl and either a solid metal phase or a liquid cadmium phase. The partition reactions are described herein, and the thermodynamic basis for predicting distributions of actinides and fission products in the pyroprocess is discussed. The critical role of metal-phase activity coefficients, especially those of rare earth and the transuranic … more
Date: October 1, 1993
Creator: Ackerman, J. P. & Johnson, T. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Lithium--water--air battery project: progress during the month of March 1977. [LLL]

Description: The electrode behavior of the system, Ca/aq.-NaOH, NaCl, was investigated at ambient temperatures. Limiting currents were noted for intermediate concentrations of NaOH and NaCl, while rapid passivation at high ratios of NaOH to NaCl occurred. Low ratios of NaOH/NaCl yielded uncontrollable hydrogen evolution and rapid calcium dissolution. A model of the aqueous cell of the proposed system for the production of lithium was completed. The apparatus allows simultaneous determination of current effi… more
Date: April 11, 1977
Creator: Cooper, J. F.; Hosmer, P. K.; Kelly, B. E.; Krikorian, O. H. & Parrish, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enhanced absorption cycle computer model. Final report

Description: Absorption heat pumps have received renewed and increasing attention in the past two decades. The rising cost of electricity has made the particular features of this heat-powered cycle attractive for both residential and industrial applications. Solar-powered absorption chillers, gas-fired domestic heat pumps, and waste-heat-powered industrial temperatures boosters are a few of the applications recently subjected to intensive research and development. The absorption heat pump research community… more
Date: September 1, 1993
Creator: Grossman, G. & Wilk, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tests of prototype salt stripper system for IFR fuel cycle

Description: One of the waste treatment steps for the on-site reprocessing of spent fuel from the Integral Fast Reactor fuel cycles is stripping of the electrolyte salt used in the electrorefining process. This involves the chemical reduction of the actinides and rare earth chlorides forming metals which then dissolve in a cadmium pool. To develop the equipment for this step, a prototype salt stripper system has been installed in an engineering scale argon-filled glovebox. Pumping trails were successful in … more
Date: September 1, 1993
Creator: Carls, E. L.; Blaskovitz, R. J.; Johnson, T. R. & Ogata, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Corrosion Studies for a Fused Salt-Liquid Metal Extraction Process for the Liquid Metal Fuel Reactor

Description: Corrosion screening tests were carried out on potential materials of construction for use in a fused salt-liquid metal extraction process plant. The corrodents of interest were NaCl--KCl-- MgCl/sub 2/ eutectic, LiCl--KCl eutectic, Bi-- U fuel, and BiCl/sub 3/, either separately or in various combinations. Screening tests to determine the resistance of a wide range of commercial alloys to the corrodents were performed in static and tilting-furnace capsules. Some ceramic materials were tested in … more
Date: June 30, 1960
Creator: Susskind, H.; Hill, F. B.; Green, L.; Kalish, S.; Kukacka, L. E.; McNulty, W. E. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Study of Complex Ions in Fused Salt Systems. Final Report

Description: Absorption spectrophotometric methods were used in a study of complex ion formation and acid-base reactions in fused chloride and nitrate systems. Several methods for the treatment of spectrophotometric data were investigated. The spectra of various chromium salts were determined in three nitrate melts and in fused lithium chloride-pothssium chloride. In low solute concentrations in LiNO/sub 3/-KNO/sub 3/, NaNC/sub 3/-KNO/sub 3/, and LiCl-KCl melts, the species found was the chromate ion, while… more
Date: September 17, 1959
Creator: Osteryoung, R. A.; VanNorman, J. D. & Christie, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CALCIUM URANIUM(IV) FLUORIDE PRECIPITATION AND REDUCTION TO METAL

Description: The double salt calcium uranium(IV) fluoride can be precipitated from uranyl nitrate solution. In the presence of fluoride and calcium ions, ferrous salts will reduce uranium(VI) nitrate to the four state precipitating calcium uranium(IV) fluoride. X-ray studies showed that the compound is a true double salt. The salt can be dehydrated under argon at 250 deg C and reduced to metal by the bomb technique. Reduction yields are high, but co-precipitated iron in the salt is concentrated in the urani… more
Date: March 17, 1955
Creator: Tolley, W. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Efficiency Liquid-Desiccant Regenerator for Air Conditioning and Industrial Drying

Description: Over 2 quads of fossil fuels are used each year for moisture removal. This includes industrial and agricultural processes where feedstocks and final products must be dried, as well as comfort conditioning of indoor spaces where the control of humidity is essential to maintaining healthy, productive and comfortable working conditions. Desiccants, materials that have a high affinity for water vapor, can greatly reduce energy use for both drying and dehumidification. An opportunity exists to great… more
Date: December 19, 2005
Creator: Lowenstein, Andrew
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ANION EXCHANGE SEPARATION OF TRIVALENT ACTINIDES AND LANTHANIDES

Description: A process for separating americium and curium from rare earths by anion exchange based on selective chloride complexing was developed and tested on a laboratory scale. The separation is accomplished by sorption of americium, curium, and rare earths on Dowex 1-10X resin from a solution of 8 M LiNO/dub 3/ followed by selective elution of rare earths with 10 M LiCl and americium-curium elution with 1 M LiCl. In a laboratory demonstration of this process, greater than 99.5% of americium tracer cont… more
Date: June 1, 1960
Creator: Lloyd, M. H. & Leuze, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Potential Measurements in Acetylide-Containing Melts

Description: Present data suggest that the free energy of formation of Li/sub 2/C/sub 2/ is -26 kcal/mol at 700/sup 0/K. However, there is no evidence that the discharge of acetylide ions is reversible, i.e., that acetylide ions are formed by direct reduction of carbon. The carbon electrode is susceptible to mixed potentials. Acetylide ion discharge is strongly diffusion controlled. It appears that acetylide ions in LiCl--KCl eutectic are reasonably stable only in the absence of oxidants such as lithium-int… more
Date: January 1, 1978
Creator: Qafisheh, J. & Selman, J.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Modification of LiCl-LiBr-KBr electrolyte for LiAl/FeS{sub 2} batteries

Description: The bipolar LiAl/FeS{sub 2} battery is being developed to achieve the high performance and long cycle life needed for electric vehicle application. The molten-salt (400 to 440 C operation) electrolyte composition for this battery has evolved to support these objectives. An earlier change to LiCl-LiBr-KBr electrolyte is responsible for significantly increased cycle life (up to 1,000 cycles). Recent electrolyte modification has significantly improved cell performance; approximately 50% increased … more
Date: June 1, 1996
Creator: Kaun, T. D.; Jansen, A. N.; Henriksen, G. L. & Vissers, D. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Testing of pyrochemical centrifugal contactors

Description: A centrifugal contactor that performs oxidation and reduction exchange reactions between molten metals and salts at 500 degrees Centigrade has been tested successfully at Argonne National Laboratory (ANL). The design is based on contactors for aqueous- organic systems operation near room temperature. In tests to demonstrate the performance of the pyrocontactor, cadmium and LICl- KCl eutectic salt were the immiscible solvent phases, and rare earths were the distributing solutes. The tests showed… more
Date: August 1996
Creator: Chow, L. S.; Carls, E. L.; Basco, J. K. & Johnson, T. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Electronically configured battery pack

Description: Battery packs for portable equipment must sometimes accommodate conflicting requirements to meet application needs. An electronically configurable battery pack was developed to support two highly different operating modes, one requiring very low power consumption at a low voltage and the other requiring high power consumption at a higher voltage. The configurable battery pack optimizes the lifetime and performance of the system by making the best use of all available energy thus enabling the sy… more
Date: March 1, 1997
Creator: Kemper, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Ion pair dissociation effects of aza-based anion receptors on lithium salts in polymer electrolytes

Description: The addition of aza-based anion receptors greatly increases the conductivity of polymer electrolytes based on LiCl and KI complexes with poly(ethylene oxide) (PEO). In some cases the conductivity increase is more than two orders of magnitude. Also the addition of the anion acceptors imparts a rubber like consistency to the normally stiff PEO salt films. Ion-ion, ion-polymer and anion-complex interactions were studied using Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy at the K… more
Date: December 31, 1996
Creator: Yang, X. Q.; Lee, H. S.; Xiang, C.; McBreen, J.; Choi, L. S. & Okamoto, Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen