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Thermodynamic Equilibria of Vanadium in Aqueous Systems as Applied to the Interpretation of the Colorado Plateau Ore Deposits
The following report describes studies of thermodynamic equilibria of vanadium in aqueous systems as applied to the interpretation of the Colorado Plateau ore deposits.
Date:
May 13, 1958
Creator:
Evans, Howard T., Jr. & Garrels, Robert M.
System:
The UNT Digital Library
The Extraction and Recovery of Uranium (and Vanadium) from Acidic Liquors with DI (2-Ethylhexyl) Phosphoric Acid and Some Other Organophosphorus Acids
Bench scale studies have been made of the recovery of uranium from acid leach liquors (and slurries) by solvent extracting with di (2-ethylhexyl) phosphoric acid in an organic diluent. Uranium may be stripped from the organic solvent by either alkaline or acidic reagents, the former having been studied in greater detail. On the basis of these tests, a recovery process may be considered which shows promise both from the standpoint of operation and chemical costs. Under proper conditions, vanadium can also be extracted by the di (2-ethylhexyl) phosphoric acid and stripping again may be accomplished with either acidic or alkaline reagents. Preliminary studies have been made of these possibilities. In addition to di (2-ethylhexyl) phosphoric acid, some other organophosphorus acids, have been cursorily examined in respect to their extraction and/or stripping performance.
Date:
May 13, 1955
Creator:
Blake, C. A.; Brown, K. B.; Coleman, C. F.; Horner, D. E. & Schmitt, J. M.
System:
The UNT Digital Library
Grain Refinement of the As-Cast Uranium-5 w/o Chromium Alloy by Heat Treatment
Introduction: "The uranium-5 w/o chromium alloy has been intensively investigated for use in a power reactor in the as-cast condition. However, when cast sample fuel elements were subjected to irradiation, their stability was found to be unsatisfactory. In order to improve the behavior of the alloy, a program of grain refinement by heat treatment was begun. The effect of chill casting on the heat-treated grain size was also investigated."
Date:
May 13, 1955
Creator:
Saller, Henry A.; Rough, Frank A. & Bauer, Arthur A.
System:
The UNT Digital Library
Determination of Particle Size Distribution and Surface Area by Photometry
The following report describes procedures taken to utilize the photelometer to procure the most rapid and reliable determinations, but the goal of the tests presented was to create satisfactory dispersions of particles to analyze.
Date:
May 13, 1948
Creator:
King, D. R. & Panowski, J. B.
System:
The UNT Digital Library
Pile Control IV, Nuclear Engineering Course 1947 - 1948
This report describes the use of pile control over atomic power, including the different methods of control.
Date:
May 13, 1948
Creator:
Crever, Frederick E.
System:
The UNT Digital Library