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Preparation of Some Protactinium Compounds and the Metal

Description: Report discussing methods for preparing various protactinium compounds, including protactinium oxides, tetrafluoride, and oxysulfide. Additionally, a method for making the protactinium metal is mentioned.
Date: April 6, 1951
Creator: Sellers, Philip A.; Fried, Sherman; Elson, Robert E. & Zachariasen, William H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preparation of Anhydrous Vanadium Trifluoride

Description: Report discussing a procedure for the preparation of anhydrous vanadium trifluoride. From abstract: "By selecting proper operating conditions and equipment, a method of preparation was devised such that anhydrous vanadium trifluoride of high purity was produced reliably in five pound batches." The method of preparation involves manipulating the starting material, vanadium pentoxide.
Date: March 13, 1950
Creator: Mackey, T. S. & Johnsson, K. O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Diffusion Length and the Utilization of Thermal Neutrons in a Heterogeneous Pile

Description: Abstract: "An accurate calculation is given for the quantity which corresponds to the diffusion length in the theory of the pile. The procedure is to establish a relationship between the diffusion length and the change in thermal utilization from a pile with infinite sides to one with sides of a finite length. The calculation of this change in the thermal utilization is then carried through. Approximation to the answer and numerically exact calculations are given in the report. The results show… more
Date: October 6, 1943
Creator: Plass, Gilbert N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Isotopes of Neptunium and Plutonium

Description: This report describes work done that originated in an effort to identify previously unknown isotopes of neptunium and plutonium and to characterize a few that were known for extension of the nuclear energy surface. The findings of this work results in two new light plutonium isotopes and one heavy neptunium isotope that were produced by bombardment of uranium with helium and deuteron ions from a 60-inch cyclotron and a 184-inch cyclotron. The chemical and experimental methods are described as w… more
Date: December 1950
Creator: Orth, Donald Alfred
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Progress Report on Carnotite Studies; Carbonate Processes : August 1949

Description: This is a progress report compiled by the chemical development department of the Carbide and Carbon Chemicals Corporation's Y-12 plant, discussing work on the carbonate (Monticello) process, as well as the recovery of uranium and vanadium from carbonate liquors.
Date: September 8, 1949
Creator: Brown, K. B.; Coleman, C. F. & Grimes, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Counting Efficiency of Pa²³³

Description: Abstract: "The counting efficiency of Pa²³³ has been determined by comparison of the counting rate of Pa²³³, under stated conditions, with the disintegration rate of U²³³ produced by Pa²³³ decay."
Date: February 27, 1951
Creator: Karraker, David George, 1923-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Potentiometric Titration of Milligram Quantities of Uranium in the Presence of Iron

Description: Report discussing "the reduction of uranium(VI) with a slight excess of chromous sulfate followed by a potentiometric titration of the uranium(IV) with standard ceric sulfate in an atmosphere of carbon dioxide." This method cannot be used at room temperature.
Date: December 29, 1951
Creator: Hahn, Richard Balser & Kelley, Myron T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Production of Beryllium by the Metallothermic Reduction of Beryllium Fluoride

Description: Report discussing "the production of beryllium by the metallothermic reduction of its fluoride...Charges of BaF2 and Mg reacted smoothly when heated by induction in graphite crucibles and on continued heating the metal and slag separated fairly well. It was found that an addition of CaCl2 to the top of the charge facilitated the separation a great deal. Very clean, massive metal has been produced by this procedure."
Date: September 30, 1945
Creator: Spedding, F. H.; Wilhelm, H. A.; Keller, W. H. & Noher, Charles
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The conductivity change in polyethylene during irradiation

Description: From abstract: "This temperature data serves to suggest an ionic mechanism for electrical conduction in polyethylene as opposed to an electronic mechanism. In fact, the ion contributing most to the conduction in the polyethylene may well be the proton."
Date: 1952
Creator: Mayburg, Sumner & Lawrence, W. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Studies of the Solvent Extraction Behavior of the Transition Elements: 1. Fractionation of the Trivalent Rare Earths

Description: Report discussing the fractionation study of tri-n-butyl orthophosphate as the organic phase using a solution of trivalent rare earth chlorides or nitrates as the aqueous phase.
Date: January 17, 1952
Creator: Peppard, D. F.; Faris, J. P.; Gray, P. R. & Mason, G. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The [beta]-Spectra of Pu²³⁹, Pu²⁴⁰, Pu²⁴¹and Sm¹⁵¹

Description: The [beta] spectrum of the 10-year Pu²⁴¹ was run on a sample of radiochemically pure plutonium containing the isotopes Pu²³⁹, Pu²⁴⁰, Pu²⁴¹, isotopically enriched in Pu²⁴¹ by pile neutron irradiation. The isotopic composition was determined mass spectrographically.
Date: February 8, 1952
Creator: Wagner, F.; Freedman, Melvin S. & Engelkemeir, D. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Effect of Hydrogen on the Stability of, and the Stabilization of Perfluoro Oils Toward Fluorine

Description: The following report discusses methods developed through various investigations on the effect of hydrogen on the stability and stabilization of perfluoro oils toward fluorine, using compounds of carbon and fluorine or "perfluorocarbons" as the subject of study.
Date: 1952
Creator: Weber, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Vanadium-Uranium Constitutional Diagram

Description: Abstract: "Vanadium-uranium equilibrium studies were made on alloys prepared from high-purity vanadium and good biscuit uranium. No intermetallic phases occur in the system. Additions of vanadium lover the uranium melting point and transformations producing a eutectic at 1240 +/- 5 C and eutectoid reactions at 727 +/- 5 and 652 +/- 5 C. The maximum solubility of uranium in vanadium is about 4 atomic per cent (15 weight per cent)."
Date: December 15, 1951
Creator: Saller, Henry A. & Rough, Frank A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of the Higgins Continuous Ion Exchange Contactor for the Recovery of Uranium from Leached Ore Pulps

Description: From introduction: "The objective of this report is to present the results and describe the tests of both the 2-in. D and 6-in. D contractors using mill pulp feeds. Work on determining resign attrition is also reported. ORNL-CF-52-12-101 described the results of preliminary tests using synthetic ore pulps."
Date: March 25, 1955
Creator: Higgins, I. R.; Hancher, C. W. & Arehart, T. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Neoprene and Nickel Linings : NYX Test No. 1.3.4

Description: Abstract: "Stainless steel valves, pumps, and heat exchangers were not available for NYX start-up. Cast iron and steel equipment was protected against corrosion by lining with neoprone and nickel plate. The linings failed under flow conditions and their use was discontinued. Chromate inhibitor was used to reduce rusting for the reminder of the test program."
Date: December 1952
Creator: Poss, Fred J. & Longtin, Bruce
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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