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366 Matching Results
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The Aluminum Nitrate Process for the Conversion of Tuballoy Tetrafluoride to Tuballoy Peroxide
The following report describes an experiment on the aluminum nitrate process for the conversion of tuballoy tetrafluoride to tuballoy peroxide and the solutions resulting.
Date:
August 22, 1945
Creator:
Lord, E. J.; Andrews, L. J. & Gates, J. W.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Oil Production in the Near-Depleted Mexia-Powell Fault-Line Fields of Texas
Report issued by the U.S. Bureau of Mines on the oil fields located near the Mexia-Powell fault line in Texas. Properties of the oil fields, including geology and oil production, are presented. This report includes tables, graphs, maps, and illustrations.
Date:
August 1943
Creator:
Hill, Harry Blackburn & Guthrie, R. K.
Object Type:
Report
System:
The UNT Digital Library
An analysis of the indications of the University of Chicago airborne turbulence indicator in gusty air
From Introduction: "The present report has been prepared to discuss the indications obtained from the University of Chicago turbulence indicator in relation to simultaneous measurement of atmospheric gustiness made by the NACA, which are summarized herein."
Date:
August 1946
Creator:
Tolefson, H. B. & Pratt, K. G.
Object Type:
Report
System:
The UNT Digital Library
Antiknock Effectiveness of Xylidines in Small-Scale Engines
"The data presented in this report are part of a general program to determine the effects of xylidines on the knock-limited performance of currently used aviation fuels" (p. 2).
Date:
August 1943
Creator:
Branstetter, J. Robert & Meyer, Carl L.
Object Type:
Report
System:
The UNT Digital Library
An Autunite Deposit in the Rosamond Hills, Kern County, California
From introduction: An autunite deposit in the SW 1/4 sec. 25, T. 10 N., R. 13 W. San Bernardino meridian, was visited by F. M. Chace on May 6 and 15, 1950. The deposit is about 100 yards west of a north-south country road and is at an altitude of approximately 2,775 feet. The autunite-bearing tuffaceous sandstone strikes N. 35-40 W. and dips 20 -25 SW. It has been traced about 40 feet along the strike at the base of the outcrop and for about 20 feet up the dip. Insufficient work was done to give an accurate idea of the size of the deposit or to determine if other autunite-bearing beds are present.
Date:
August 1940
Creator:
Chace, F. M.
Object Type:
Report
System:
The UNT Digital Library
Byproduct Coke-Oven Tests of Washington Coals
Report issued by the U.S. Bureau of Mines on the coking-coal testing done on Washington coal. Descriptions of the testing, and properties of the coals tested are presented. This report includes tables, and photographs.
Date:
August 1943
Creator:
Yancey, H. F.; Daniels, Joseph; McMillan, E. R. & Geer, M. R.
Object Type:
Report
System:
The UNT Digital Library
The Charge on Uranium(VI) in Acid Solution
Abstract. The distribution coefficient of U(VI) between perchloric acid solutions and benzene solutions of TTA has been measured as a function of the acidity. It was possible to interpret the data in terms of the charge on the U(VI) species present in the aqueous phase. The experiments indicate that U(VI) exists as an ion charge +2 at acidities from 0.1M to 2.5M. In the interpretations of the distribution data, it was necessary to know the acidity coefficient of the uranyl chelate in the benzene solution. This was determined by measurement of the solubility of the compound UO2K2 - xH2). The activity coefficient of UO2K2 was found to decrease rapidly as the concentration of TTA in the benzene phase increased above 0.1M. This is probably due to the formation of a species involving more than two TTA molecules per U(VI)
Date:
August 15, 1946
Creator:
King, Edward L.
Object Type:
Report
System:
The UNT Digital Library
The Coulometric Determination of Acetic Acid
Abstract: "Small amounts of acetic acid, equivalent to 400 ul. of 0.3 to 0.13 g/L. can be titrated coulonatrically in the presence of a 10 to 25-fold excess of HN03 in 70%, isopropanol. An accuracy of +/- 0.1% and a precision of +/- 8.5% (99% limite) are obtained.
Date:
August 16, 1949
Creator:
Carson, W. N. & Ko, Roy
Object Type:
Report
System:
The UNT Digital Library
Critical Dimensions of Untamped Conical Vessels
Abstract: "The need often arises for determining the critical chemical concentration of uranium solution in the conical bottom of a plant reactor or storage vessel, or the dimension if the concentration is known. This report describes the mathematical analysis of Poisson's equation for a spherical sector, which approximates a right circular cone. The ratio of the critical dimension of an equivalent sphere to the height of the sector for various sector angles is derived from a comparison of first eigenvalues. No description of further relations between composition and dimensions is discussed in the report."
Date:
August 25, 1947
Creator:
Murray, Raymond
Object Type:
Report
System:
The UNT Digital Library
Crystal Structures of Some Uranium Compounds : a Summary from the Ames Laboratory
Introduction. Some forty different uranium compounds have now been given diffraction study at Ames. Reports of these investigations are scattered in the Project literature; many have been reported in a sentence or two as a note along with chemical or metallographic reports. To make the results of this crystal structure work more available this summary of the Ames work has been compiled. (A similar summary has already been published from the Chicago laboratory.)
Date:
August 15, 1945
Creator:
Rundle, R. E.; Baenziger, N. C. & Wilson, A. S.
Object Type:
Report
System:
The UNT Digital Library
Design of a Bubble-Cap Column to Replace Nitric Acid Concentrator
The following document presents designs and blueprints to the bubble-cap column built to replace a nitric acid concentrator.
Date:
August 22, 1949
Creator:
Wallingford, H.
Object Type:
Report
System:
The UNT Digital Library
A Direct Current Emission Regulator
The following report describes a current beam modulation designed to replace the standard regulator and to achieve an ion beam free from amplitude modulation.
Date:
August 4, 1945
Creator:
White, J. R. & Cameron, A. E.
Object Type:
Report
System:
The UNT Digital Library
The Dissolution of Thorium Metal and Thorium Dioxide in HNO3 - HF and HNO3- ( NH4 ) 2 SiF6 Mixtures
Abstract. A satisfactory method has been found for dissolving thorium metal and thorium oxide in heat-treated 25-12 stainless steel vessels without excessive corrosion of the vessels. The dissolution medium consists of strong HNO3 containing a small amount of fluoride or fluo-silicate. the fluoride required has no harmful effects on a subsequent solvent-extraction step for a separation of uranium isotopes from the dissolved thorium.
Date:
August 2, 1946
Creator:
Schuler, Frederick W.; Steahly, Frank L. & Stoughton, Raymond W.
Object Type:
Report
System:
The UNT Digital Library
Distribution Coefficient of Dâ‚‚O Between Triethylamine and Water
Summary: "Water containing 1.8% D2O was distributed between the two liquid phases formed with triethylamine at 20 and 35 C. The triethylamine was removed from each phase by aseotropic distillation with benzene before analyzing the water by determining its density with a quartz float. The ratios of the concentrations of the D2O in the water layer to that in the amino layer were 1.007 and 1.004 at 20 and 35, respectfully. The differences from unity are about the same as the errors of analysis."
Date:
August 31, 1943
Creator:
Carlson, H. C.
Object Type:
Report
System:
The UNT Digital Library
The Distribution of Thermal Neutrons in a Slug with Thick End Caps
The distribution of thermal neutrons in a W slug having a one centimeter aluminum end cap has been calculated on the basis of simple diffusion theory. It is found that the average neutron density, and therefore the power output, at the end of the slug is about 34% higher than the density far from the end cap. This result agrees well with the recent Argonne pile experiments (CP-1729).
Date:
August 3, 1944
Creator:
Wilkins, J. Ernest, Jr., 1923-2011
Object Type:
Report
System:
The UNT Digital Library
Eastern Black Shale Reconnaissance Preliminary Report
The following report is the result of a reconnaissance of the black shales of the Eastern United States in the summer of 1944. The purpose of this reconnaissance was to determine the radioactivity of the shales, specifically for uranium and thorium.
Date:
August 25, 1944
Creator:
Slaughter, A. L. & Clabaugh, S. E.
Object Type:
Report
System:
The UNT Digital Library
Economic Considerations in the Recovery of Magnesia from Dolomite
Report issued by the U.S. Bureau of Mines discussing the recovery of magnesia from dolomite. Processes and methods of recovery are described. This report includes tables.
Date:
August 1943
Creator:
Schallis, Alvin
Object Type:
Report
System:
The UNT Digital Library
The Effect of Geometry and Voltage Variations on the Operations of the Phillips Ion Gage
Abstract: "The study of ten P.I.G. geometries with copper electrodes and d.c. voltage indicates that from a pressure of 0.1 to about 3.0 microns, depending upon the gage, there is a consistent change in the air pressure-current characteristics of a P.I.G. as the geometry and voltage are changed. At higher pressures discontinuities appear in the gage current and prohibit its use as a pressure gage. In all useful geometries, the greater the applied voltage above 1000 volts, the shorter the useful portion of the pressure-current curve became. Below 1000 volts the curve tended to be unstable. With other conditions constant, the pressure limit increased as the cathode separation decreased and as the anode diameter increased. The empirical equation for the current in certain Philips Ion Gages at certain pressures and voltages is I = a'Pe-p/b where I is the current, P the pressure, e the Naperian base and a' and b constants and dependent upon geometry and voltage."
Date:
August 22, 1945
Creator:
McKinney, C. R.; Eggen, Donald T.; Bishop, A.; Arnold, W. A. & Starr, C.
Object Type:
Report
System:
The UNT Digital Library
Electrolytic Production of Uranium from Solutions of its Tribromide in Fused Salts
Abstract. the electrodeposition of uranium metal, in the form of tree-like deposits, from molten strontium halide baths is described. Under the best conditions studied, approximately 40% recovery is attained. Freedom from side-reactions of the reduced uranium with anode products and/or refractory materials, and high cathode current densities appear to be essential to the success of the process. the refining of uranium under similar conditions appears to occur quite readily, with approximately 50% current efficiency. The preparation of UI3 is also described.
Date:
August 15, 1944
Creator:
Webster, Richard A.
Object Type:
Report
System:
The UNT Digital Library
Engineering Study of the Rodessa Oil Field in Louisiana, Texas, and Arkansas
Report issued by the Bureau of Mines over drilling operations in Texas, Arkansas, and Louisiana. Results of the operations are discussed. This report includes maps, tables, illustrations, and photographs.
Date:
August 1943
Creator:
Hill, Harry Blackburn & Guthrie, R. K.
Object Type:
Report
System:
The UNT Digital Library
Examination of Zinc-Lead Mines in the Wallapai Mining District, Mohave County, Arizona
Report issued by the Bureau of Mines over studies on the zinc-lead mines in Mohave County, Arizona. Descriptions of the characteristics, development, and production of the ore are presented. This report includes tables, maps, and illustrations.
Date:
August 1947
Creator:
Haury, Peter S.
Object Type:
Report
System:
The UNT Digital Library
Experiment in Underground Gasification of Coal, Gorgas, Alabama
Report issued by the Bureau of Mines over studies and experiments conducted on underground coal gasification. The results of the experiments are listed. Description and analysis of the coal and coal bed are also presented. This report includes tables, maps, photographs, and illustrations.
Date:
August 1947
Creator:
Dowd, James J.; Elder, James L.; Capp, J. P. & Cohen, Paul
Object Type:
Report
System:
The UNT Digital Library
Exploration of the Mount Hope Mine, Eureka County, Nevada
Report issued by the U.S. Bureau of Mines on the exploration of the Mount Hope mine. Analysis of samples obtained from core-drilling are listed. This report includes tables, maps, and illustrations.
Date:
August 1946
Creator:
Matson, E. J.
Object Type:
Report
System:
The UNT Digital Library
The Extraction Method of Purification of Uranyl Nitrate
Technical report. Three extractions of a diethyl ether solution of uranyl nitrate with small portions of water are effective in removing rare earths, as is shown by radio-gadolinium and radio-europium tracer experiments. A study of representative ethers, alcohols, ketones, and esters showed that diethyl ether and a mixture of 85% ethyl methyl ketone with 15% xylene are the best solvents for the extraction.
Date:
August 28, 1942
Creator:
Myers, L. S., Jr.; Anderson, K. C.; Wexler, Sol & Boyd, G. E.
Object Type:
Report
System:
The UNT Digital Library