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Argonne National Laboratory is a U.S. Department of Energy multidisciplinary science and engineering research center, where talented researchers work together to

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Study of salts in water causing stir -- ScienceDaily

Feb 01, 2018Study of salts in water causing stir Date: February 1, 2018 Source: Argonne National Laboratory Summary: New insight into science that seems, on its surface, exceedingly simple --

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Optimization of the Dissolution of Mo Disks

Optimization of the Dissolution of Mo Disks D.A. Rotsch, P. Tkac, G.F. Vandegrift Nuclear Chemical Engineering Department Nuclear Engineering Division Argonne National Laboratory, 9700 S. Cass Ave., 60439 Argonne United States ABSTRACT The dissolution rate of these larger diameter and thinner disks was significantly faster than the

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MEASUREMENT OF THE GLASS DISSOLUTION RATE IN THE

MEASUREMENT OF THE GLASS DISSOLUTION RATE IN THE PRESENCE OF ALTERATION PHASES W. L. Ebert and A. J. Bake1 ARGONNE NATIONAL LABORATORY Chemical Technology Division 9700 South Cass Avenue Argonne, IL 60439-4837 and N. R. Brown

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Cited by: 6

Publications Argonne National Laboratory

Argonne National Laboratory. Search. Sang Soo; De Andrade, Vincent; Gursoy, Doga; Sturchio, Neil; Fenter, Paul Mapping three-dimensional dissolution rates of calcite microcrystals: Effects of surface curvature and dissolved metal ions ACS Earth and Space Chemistry Explore the Argonne Research Library.

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Corrosion Tests to Determine Temperature and pH

ARGONNE NATIONAL LABORATORY 9700 South Cass Avenue Argonne, IL 60439 CORROSION TESTS TO DETERMINE TEMPERATURE AND pH DEPENDENCIES OF THE DISSOLUTION RATES OF SODALITE, BINDER GLASS, AND CERAMIC WASTE FORM by Seung-Young Jeong, Thomas H. Fanning*, Lester R. Morss, and William L. Ebert Chemical Technology Division

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Dissolving brittle stars hint at implications of ocean

Aug 15, 2013The group has established the rate at which seawater is dissolving brittle star skeletons, and note that ocean acidity may be close to a tipping point. Surpassing that threshold may threaten the growth of marine invertebrates and upset entire ecosystems. Argonne National Laboratory seeks solutions to pressing national problems in science

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Publications Argonne National Laboratory

Argonne National Laboratory. Search. Sang Soo; De Andrade, Vincent; Gursoy, Doga; Sturchio, Neil; Fenter, Paul Mapping three-dimensional dissolution rates of calcite microcrystals: Effects of surface curvature and dissolved metal ions ACS Earth and Space Chemistry Explore the Argonne Research Library.

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Corrosion Tests to Determine Temperature and pH

ARGONNE NATIONAL LABORATORY 9700 South Cass Avenue Argonne, IL 60439 CORROSION TESTS TO DETERMINE TEMPERATURE AND pH DEPENDENCIES OF THE DISSOLUTION RATES OF SODALITE, BINDER GLASS, AND CERAMIC WASTE FORM by Seung-Young Jeong, Thomas H. Fanning*, Lester R. Morss, and William L. Ebert Chemical Technology Division

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Combined Effects of Formulation and Stirring on Emulsion

As surfactant−oil−water systems approach Winsor III phase behavior, at the so-called optimum formulation, the interfacial tension decreases, thus allowing the generation of smaller drops upon stirring. On the other hand, the coalescence rate increases, thus favoring the formation of larger drops.

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Q&A with Dr. Tim Fister, Materials Scientist, Argonne

Mar 10, 2020The U.S. Department of Energy and the U.S. lead battery industry are currently collaborating on a first-ever initiative to unlock the full potential of lead battery technology. The three-year research project occurring at Argonne National Laboratory (ANL) in Chicago, is using the Advanced Photon Source one of the world’s premier high-energy synchrotrons to study electrochemical

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Dissolution of Metal Foils by Nitric-Acid/Sulphuric-Acid

The first step in processing low-enriched uranium (LEU) targets for production of Mo-99 is to dissolve the neutron-irradiated uranium foil coming from the reactor. Appropriate conditions for dissolving the foils were determined by measuring the dissolution rates for uranium foil over a wide range of temperatures and acid concentrations.

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DISSOLUTION OF LOW-ENRICHED UO2/Al DISPERSION

DISSOLUTION OF LOW-ENRICHED UO2/Al DISPERSION PLATES IN ALKALINE PEROXIDE SOLUTION C. Conner, S. Aase, D. G. Wygmans, and G. F. Vandegrift Argonne National Laboratory Argonne, Illinois U.S.A. D. Wu1 University of Illinois at Urbana-Champaign Urbana, Illinois U.S.A. Sample UO2 Dissolution Rates

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Study of salts in water causing stir Phys

by Argonne National Laboratory. A research team led by Argonne’s Giulia Galli has gleaned new insights about the structure of salt water by simulating the liquid at the molecular level with the

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Mo-99-2014-Topical Chemical processing Northstar

Argonne National Laboratory with the National Nuclear Security Admiration’s (NNSA) 1.2 mL) was then added. Precipitation of the solution increased. Stirring became difficult, so the solution was diluted with 10 mL of H 2O. The resultant slurry was heated at 75 affect dissolution rates. Pre-sintering, pressing, and sintering conditions

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Non-Platinum Bimetallic Cathode Electrocatalysts

Non-Platinum Bimetallic Cathode Electrocatalysts Subject This presentation, which focuses on non-platinum bimetallic cathode electrocatalysts, was given by Debbie Myers of Argonne National Laboratory at a February 2007 meeting on new fuel cell projects.

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A.

Argonne National Laboratory Argonne, Illinois U.S.A. and Moeridun, A. A. Rauf, H. Lubis, A. Hardi, S. Amini, and Y. Nampira Indonesian National Atomic Energy Agency Serpong, Indonesia The first step in processing low-enriched uranium (LEU) targets for production of 99M0 is to dissolve the neutron-irradiated uranium foil coming from the reactor.

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V.A.4 Tailored High-Performance Low-PGM Alloy Cathode

Stamenovic Argonne National Laboratory V.A Fuel Cells / Catalysts Electrodes between them is due to the two-dimensional (2D) nature of the thin film surface versus a three-dimensional (3D) catalyst overlayer. Accordingly, dissolution rates measured from

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DISSOLUTION OF LOW-ENRICHED UO2/AI DISPERSION PLATES

Argonne National Laboratory Argonne, Illinois U.S.A. D. Wu University of Illinois at Urbana-Champaign Urbana, Illinois U.S.A. S. Landsberger University of Illinois at Urbana-Champaign Urbana, Illinois U.S.A. ABSTRACT. A simple empirical model was developed to predict the rate of UO 2 dissolution in alkaline peroxide solutions.

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U. No. U.

Argonne National Laboratory Chemical Technology Division Argonne, Illinois U.S.A. ABSTRACT A process is under development to use low-enriched uranium (LEU) metal targets for production of 99M0. The first step is to dissolve the irradiated foil. In past work, this has been done by heating a closed (sealed) vessel containing the foil

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DISSOLUTION CHARACTERISTICS OF MIXED

DISSOLUTION CHARACTERISTICS OF MIXED UO, POWDERS IN J-13 WATER UNDER SATURATED CONDITIONS by Ewald Veleckis and Joseph C. Hoh ABSTRACT The Yucca Mountain Project/Spent Fuel program at Argonne National Laboratory is designed to determine radionuclide release rates by exposing high-level waste to repository-relevant groundwater. To gain

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V.A.4 Tailored High-Performance Low-PGM Alloy Cathode

Stamenovic Argonne National Laboratory V.A Fuel Cells / Catalysts Electrodes between them is due to the two-dimensional (2D) nature of the thin film surface versus a three-dimensional (3D) catalyst overlayer. Accordingly, dissolution rates measured from

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DISSOLUTION OF LOW-ENRICHED UO2/AI DISPERSION PLATES

Argonne National Laboratory Argonne, Illinois U.S.A. D. Wu University of Illinois at Urbana-Champaign Urbana, Illinois U.S.A. S. Landsberger University of Illinois at Urbana-Champaign Urbana, Illinois U.S.A. ABSTRACT. A simple empirical model was developed to predict the rate of UO 2 dissolution in alkaline peroxide solutions.

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U. No. U.

Argonne National Laboratory Chemical Technology Division Argonne, Illinois U.S.A. ABSTRACT A process is under development to use low-enriched uranium (LEU) metal targets for production of 99M0. The first step is to dissolve the irradiated foil. In past work, this has been done by heating a closed (sealed) vessel containing the foil

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DISSOLUTION CHARACTERISTICS OF MIXED

DISSOLUTION CHARACTERISTICS OF MIXED UO, POWDERS IN J-13 WATER UNDER SATURATED CONDITIONS by Ewald Veleckis and Joseph C. Hoh ABSTRACT The Yucca Mountain Project/Spent Fuel program at Argonne National Laboratory is designed to determine radionuclide release rates by exposing high-level waste to repository-relevant groundwater. To gain

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Dissolution Kinetics of TiO2 in HF-HC1 Solutions BRIGHT

The dissolution kinetics of TiO 2 powders in HF-HCl solutions was studied as a function of time, temperature, and acid concentration. The rate of dissolution was linear with time, directly proportional to [HF], independent of [HCl], and exhibited an exponential temperature dependence with an activation energy of 74.9 kj/mol.

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J. S. F. M. ;.k:zc7&$

uncertainty. The dissolution rates at all temperatures decreased with the test duration initially. However, the dissolution rates in tests at 70 and 90°C increased when certain alteration phases formed after about 100 and 500 days, respectively; the rates in some tests exceeded that measured in a 7-day PCT.

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PROCESSING OF LEU TARGETS FOR 99Mo PRODUCTION-

Argonne National Laboratory Argonne, Illinois U.S.A. and Moeridun, A. A. Rauf, H. Lubis, A. Hardi, S. Amini, and Y. Nampira Indonesian National Atomic Energy Agency Serpong, Indonesia ABSTRACT The first step in processing low-enriched uranium (LEU) targets for production of 99Mo is to dissolve the neutron-irradiated uranium foil coming

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Dissolution of Metal Foil Targets by Alkaline Hydrogen

DISSOLUTION OF METAL FOIL TARGETS BY ALKALINE HYDROGEN PEROXIDE* D. Dong and G. F. Vandegrift Argonne National Laboratory Argonne, Illinois U.S.A. S. Amini, J. B. Hersubeno, H. Nasution, and Y. Nampira Indonesian National Atomic Energy Agency Serpong, Indonesia . Presented at the1995 International Meeting on

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DOCUMENT AVAILABILITY Argonne National Laboratory

Argonne National Laboratory, or UChicago Argonne, LLC. vessel; addition rate, stirring speed, and temperature must be set to optimize reaction limiting step is the rate of dissolution of the nitrate salts. The limited solubility of barium nitrate may also be limiting. Grinding the

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Glass Dissolution Rates from Static and Flow-Through Tests

Glass Dissolution Rates from Static and Flow-Through Tests S.-Y.JeongandW.L.Ebert Chemical Technology Division Argonne National Laboratory 9700 South Cass Avenue Argonne, IL 60439 For presentation at: Spectrum 2002 Reno, Nevada August 4-8, 2002 The submitted manuscript has been created by the University of Chicago as Operator of Argonne National

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O. O. AJAYI Argonne National Laboratory, Illinois ANL

A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.

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WM2012 Conference, February 26 March 1, 2012, Phoenix

WM2012 Conference, February 26 March 1, 2012, Phoenix, Arizona, USA 4 T = absolute temperature Keq = pseudo-equilibrium constant for glass r∞= residual rate η = order of reaction with respect to [H A modified TST model applied to borosilicate glasses by Grambow15-17 includes explicit terms for the effects of temperature, solution pH, and chemical affinity.

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Integrated Laboratory and Industry Research Project

Lawrence Berkeley National Laboratory (LBNL) and Argonne National Laboratory (ANL) are teaming with FMC-Lithium and Saft USA to work on problems that impede or prevent the Stabilized Lithium Metal Powder (SLMP®) from being used as a performance enhancing additive in the electrode in commercial rechargeable batteries.

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Production of Mo-99 using low-enriched uranium silicide

The use of LEU silicide is aimed at replacing the UAl{sub x} alloy in the highly-enriched uranium dissolution process. A process to recover Mo-99 from low-enriched uranium silicide is being developed at Argonne National Laboratory. The uranium silicide is dissolved in alkaline hydrogen peroxide.

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