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Progress Report on Nonaqueous Extractive Methods for Western Uranium Ores
This report describes progress in testing nonaqueous methods for extracting uranium and vanadium from Western ores. Acetone leaches were found to be effective.
Date:
January 20, 1954
Creator:
Ewing, R. A.; Kiehl, S. J., Jr.; Kimball, R. B. & Bearse, A. E.
System:
The UNT Digital Library
Progress Report on Nonaqueous Extractive Methods for Western Uranium Ores
The following progress reports continues the investigation of the HCl-acetone process for extracting uranium, discovering that it is applicable to most Western ores, yielding high uranium recoveries. The economics of the process have been improved by substitution of sulfuric acid for part of the hydrochloric acid requirements.
Date:
April 20, 1954
Creator:
Ewing, R. A.; Pobereskin, M.; Kiehl, S. J.; Foley, D. D.; Filbert, Robert B.; Kimball, R. B. et al.
System:
The UNT Digital Library
Progress Report on Nonaqueous Extractive Methods for Western Uranium Ores
This report describes progress regarding construction of a small pilot plant and a five-step process involving hydrochloric-sulfuric acid treatment and acetone extraction.
Date:
October 20, 1954
Creator:
Ewing, R. A.; Foley, D. D.; Filbert, Robert B., Jr. & Bearse, A. E.
System:
The UNT Digital Library
Final Report on Nonaqueous Extractive Methods for Western Uranium Ores
This report discusses tests of several nonaqueous extractive methods meant to leach Western ores of uranium and vanadium. Explanations of different methods are given as well as their extraction results.
Date:
January 31, 1955
Creator:
Ewing, R. A.; Kiehl, S. J., Jr. & Bearse, A. E.
System:
The UNT Digital Library
Progress Report on the Concentration of Pitchblende
Abstract: "The results of leaching studies on sulphide froth products obtained from the flotation of high-sulphur pitchblende are presented. The distribution of molybdenum in flotation products is also given. The flotation test at Middlesex is evaluated."
Date:
December 31, 1950
Creator:
Wesner, A. L.; Tangel, O. F. & Richardson, A. C.
System:
The UNT Digital Library
Mineralogical Examination of Pitchblende Concentrates and Nitric Acid Digest Residues
This report has two parts to it discussing mineralogical examination of pitchblende concentrates and nitric acid digest residues. Part I gives the results of a cursory examination with the petrographic microscope of samples of pitchblende concentrates and residues to see if there is a relationship between the mineral composition of the samples and the filterability of the residue. Part II gives a revaluation of the data in Report BMI-241 on the mineral composition of two residues from the nitric acid digestion of pitchblende concentrates at the Rallinckrodt Chemical Works.
Date:
February 9, 1951
Creator:
Scott, D. W.; Tangel, O. F. & Richardson, A. C.
System:
The UNT Digital Library
Creep of 2S-O Aluminum Sheet at 500 and 550 C
Abstract: "Creep and creep-rupture tests were made on 25-O aluminum sheet at temperatures of 500 and 550 C. The estimated stresses that will produce 0.5 per cent deformation and rupture in 10,000 hours at 400, 450, 500, and 550 C (data at 400 and 450 C are from BMI-T-29, dated June 9, 1950) are presented."
Date:
September 11, 1952
Creator:
VanEcho, J. A.; Simmons, W. F. & Cross, H. C.
System:
The UNT Digital Library
Hydrogen Embrittlement of Zirconium
Abstract: "The amount of hydrogen normally present in zirconium and zirconium alloys suffices to reduce their ductility greatly in an impact test at room temperature, after slow cooling from 600 F. Quenching from 600 F or above gives high impact strength, as does removal of hydrogen by high-temperature vacuum annealing. This report discusses the evidence on hydrogen embrittlement, the diffusion, solid solubility, and equilibrium pressure of hydrogen of hydrogen in zirconium, the microstructure, and the effects of hydrogen and heat treatment on the mechanical properties of zirconium."
Date:
August 22, 1952
Creator:
Dayton, Russell Wendt; Schwope, A. D.; Muehlenkamp, G. T.; Saller, Henry A.; Dickerson, R. F.; Schwartz, C. M. et al.
System:
The UNT Digital Library
Final Report on Purification of Thorium Nitrate by Solvent Extraction With Tributyl Phosphate: 2. Mixer-Settler Pilot Plant Investigations
From abstract: "This report describes the construction and operation of a mixer-settler pilot plant for the purification of mantle-grade thorium nitrate. The liquid-liquid extraction process utilized 30% tributyl phosphate - 70% 'Solvesso-100' as the organic solvent and nitric acid as the salting agent. Continuous steady-state operation of the equipment was demonstrated, with very good recovery of thorium."
Date:
July 31, 1952
Creator:
Burkhart, C. A.; Foley, D. D.; Retzke, F. A.; Filbert, Robert B., Jr. & Clegg, John W.
System:
The UNT Digital Library
Identification of Reaction Products Formed During Magnesium Reduction of Uranium Tetrafluoride: Report
Abstract: "This report describes the results of X-ray diffraction examination of reaction products from a series of experiments performed by Mallinckrodt Chemical Works as an acid in understanding the process of bomb reduction of UF4. UF4 is initially reduced to UF3 by magnesium at 560 C., and subsequently to metal at 600 C. MgF2 from the initial reaction forms a coating on the magnesium which retards the final spontaneous reaction."
Date:
May 15, 1953
Creator:
Schwartz, C. M. & Vaughan, D. A.
System:
The UNT Digital Library
Corrosion-Resistant Materials for Hydrofluoric Acid : Progress Report
Introduction: Among the many corrosion problems encountered in the production of uranium tetrafluoride and uranium metal from ores and concentrates, some of the most serious occur where hydrofluoric acid must be handled.
Date:
June 15, 1953
Creator:
Pray, H. A.; Fink, F. W.; Friedl, B. E. & Braun, W. J.
System:
The UNT Digital Library
Progress Report on Nonaqueous Extractive Methods for Western Uranium Ores
This report describes progress in testing non-aqueous extraction methods for leaching Western ores of uranium and vanadium.
Date:
April 15, 1953
Creator:
Ewing, R. A.; Pobereskin, M.; Kimball, R. B. & Bearse, A. E.
System:
The UNT Digital Library
Progress Report on Nonaqueous Extractive Methods for Western Uranium Ores
The following progress report is part of a series of reports on the study of nonaqueous extractive methods for western uranium ores. This report continues studies on HCl-methanol leaching of Western ores, primarily on Temple Mountain ores.
Date:
July 15, 1953
Creator:
Ewing, R. A.; Pobereskin, M.; Kiehl, S. J.; Foley, D. D.; Filbert, Robert B.; Kimball, R. B. et al.
System:
The UNT Digital Library
Progress Report on Nonaqueous Extractive Methods for Western Uranium Ores
This report describes progress in testing nonaqueous extractive methods for leaching Western ores of uranium and vanadium
Date:
October 20, 1953
Creator:
Ewing, R. A.; Pobereskin, M.; Kimball, R. B. & Bearse, A. E.
System:
The UNT Digital Library
Progress Report on the Concentration of Pitchblende
Abstract: "Additional work on the flotation of sulphides from high-sulphur pitchblende is described. Data needed for the selection of flotation equipment are presented."
Date:
June 30, 1950
Creator:
Wesner, A. L.; Tangel, O. F. & Richardson, A. C.
System:
The UNT Digital Library
Topical report on examination of residues from the nitric acid digestion of pitchblende
A report about an investigation started to determine the compounds and/or minerals present in the residue resulting from nitric acid digestion of ore. Emphasis was placed on determining the compounds and/or minerals containing boron.
Date:
1950
Creator:
Langston, B.; Tangel, O. F. & Richardson, A. C.
System:
The UNT Digital Library
The technology of thorium
A report describing the technological uses of thorium. The report details interest in thorium as a potential source of the fissionable isotope U233 as well as possessing other applications. Most of the information in this report was obtained from project literature and from unpublished data available to the authors.
Date:
1951
Creator:
Marsh, L. L. & Keeler, J. R.
System:
The UNT Digital Library
Beta-Counting Methods Applied to the Determination of Uranium in Low-Grade Ores
The following report covers investigations on the application of the beta counter as an analytical tool for use in experiments on the extraction and concentration of uranium from low-grade (.005-.02 % uranium) shale and phosphate rock ores.
Date:
July 1947
Creator:
Doig, J. R.; Igelsrud, Iver; Nelson, H. R. & Schwartz, C. M.
System:
The UNT Digital Library
Welding of High-Strength Stainless Steels for Pressure Vessels
The following report describes the welding characteristics of several high-strength stainless steels that were considered for use as a pressure vessel to operate at high pressures at 800 F.
Date:
April 5, 1954
Creator:
Vagi, J. J.; Thompson, V. R. & Martin, D. C.
System:
The UNT Digital Library
Electroplated Metals on Uranium
The following report follows the studies of electroplating on uranium and concurrent metallurgical clodding.
Date:
May 7, 1954
Creator:
Beach, John G.; Schickner, W. C.; Konecny, C. R. & Faust, Charles L.
System:
The UNT Digital Library
Properties of Stainless Steel-Uranium Dioxide Fuel Plates
From abstract: "A method for fabricating 30-in.-long stainless steel - uranium dioxide sheet was developed and the properties of the fabricated sheet were investigated."
Date:
May 11, 1954
Creator:
Keeler, J. R. & Cuddy, L. J.
System:
The UNT Digital Library
Temperature distributions in a reactor fuel plate
A report about a method for fabricating 30-in long stainless steel UO2 fuel sheet and the properties of the fabricated sheet were investigated.
Date:
1954
Creator:
Chastain, Joel W.; Fawcett, Sherwood L.; Jung, R. G.; Long, J. K. & Redmond, R. F.
System:
The UNT Digital Library
A Recirculating Supercritical Water Loop
From Abstract: "A recirculating high-pressure stainless steel loop was developed for the study of heat transfer from small-bore tubes to supercritical water. It was found that under certain conditions, hot spots developed on the test section. The conditions leading to the formation of hot spots were investigated; the results of several runs are tabulated here."
Date:
October 25, 1954
Creator:
Epstein, H. M.; Goldthwaite, W. H.; Chastain, Joel W. & Fawcett, Sherwood L.
System:
The UNT Digital Library
A Recirculating Supercritical Water Loop
From abstract: "A recirculating high-pressure stainless steel loop was developed for the study of heat transfer from small-bore tubes to supercritical water. It was found that under certain conditions, hot spots developed on the test section. The conditions leading to the formation of hot spots were investigated; the results of several runs are tabulated here."
Date:
October 25, 1954
Creator:
Epstein, H. M.; Goldthwaite, W. H.; Chastain, Joel W. & Fawcett, Sherwood L.
System:
The UNT Digital Library