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Decontamination of Redox Feed Solutions by Super Filtrol Scavenging
From introduction: "This report examines the hazard which would result in the extremely unlikely event that all of the safety devices failed to operate either by accident or sabotage."
Date:
December 2, 1949
Creator:
Roake, W. E. & Hick, H. G.
System:
The UNT Digital Library
Density and Viscosity of Solutions in the Tributyl Phosphate Process for Uranium Recovery
The following report discusses the presentation of preliminary density and viscosity data which may explain whether higher viscosities of the Deo Base-TBP systems, and a change in density differences between the two phases will lead to unsatisfactory column operation.
Date:
November 29, 1949
Creator:
Burger, L. L. & Slansky, C. M.
System:
The UNT Digital Library
Effect of Temperature on Beta-Ray Measurements
Summary: "This report investigates photographic methods of measuring beta radiation and includes a study of temperature effects on these measurements. Experimental data are submitted to show that an increase in film temperature before and during beta irradiation causes a definite increase in density for the same dosage. Recommendations drawn from experience gained in the experimental works are offered."
Date:
November 23, 1949
Creator:
Stevens, A. J.
System:
The UNT Digital Library
Polarographic Determination of Hexone
The following report describes polarographic methods that determine saturated aliphatic carbonyl compounds.
Date:
November 10, 1949
Creator:
Alkire, George J.
System:
The UNT Digital Library
Corrosion Investigations of Redox Pilot Plant Equipment at Oak Ridge National Laboratories
The following report is based on the observations made during a visit to the Oak Ride National Laboratories of their Redox Pilot Plant equipment.
Date:
November 3, 1949
Creator:
Koenig, W. W.
System:
The UNT Digital Library
Corrosion Rates of Mild and Stainless Steels Exposed in Redox Stream IAW : (ANL, June 1, 1948 Flowsheet)
Introduction: In order to determine the relative corrosion resistance of welded mild and stainless steels in Redox Stream IAW neutralized to pH 0, 2, and 10 a test program, described below, has been carried out.
Date:
November 1, 1949
Creator:
Koenig, W. W.
System:
The UNT Digital Library
The Determination of Free Nitric Acid in Solutions Containing Uranyl Nitrate, Aluminum Nitrtae and Sodium Dichromate
The following report describes the developmental process of the determination of free nitric acid in solutions containing uranyl nitrate, aluminum nitrate and sodium dichromate.
Date:
October 21, 1949
Creator:
Moore, Robert Lee & Schmidt, H. R.
System:
The UNT Digital Library
The Preparation of Aluminium Nitrate from Hydrated Aluminum Oxides
This report discusses methods of producing aluminum nitrate for the Redox process. Large amounts of aluminum nitrate are consumed during the Redox process, so this report explores preparation of this material through the dissolution of hydrated aluminum oxide in nitric acid.
Date:
October 5, 1949
Creator:
Harmon, M. K.
System:
The UNT Digital Library
Purification of Graphite : (Supplementary Document to HW-12780)
Report discussing experiments and developments in purification of graphite starting from March, 1949.
Date:
October 4, 1949
Creator:
Garbrecht, M.
System:
The UNT Digital Library
Life of Van Stone Corrective Measures
This report is a document summarizing all information available on life aspects of various measures proposed to reduce or eliminate corrosion of Van Stone flanger.
Date:
September 12, 1949
Creator:
Botsford, C. W. & Eschbach, E. A.
System:
The UNT Digital Library
Stepwise Calculation for the Determination of the Number of Transfer Units in Countercurrent Extraction Columns
Report discussing a method for the stepwise calculation of the number of transfer units utilized in a given solvent extraction operation. "Use of the method results in a very appreciable saving in time of calculation with an error of 1.5% for the runs tested. The error tends to become smaller with increasing total numbers of transfer units involved."
Date:
September 12, 1949
Creator:
Burns, W. A. & Eschbach, E. A.
System:
The UNT Digital Library
The Identification and Determination of Trace Amounts of Rare Earth Elements in Graphite by Neutron Activation
Abstract: "A method is described for the identification and quantitative determination of trace amounts of rare earths in graphite by measurement of the energies and decays of the activities induced by neutron irradiation. The specific rare earth elements identified are europium and samarium. During the development of this method, the half-lives of Eu-152 and Sm-153 were determined. These are reported as 9.32 +/- 0.04 hours and 46.34 +/- 0.23 respectively."
Date:
September 1, 1949
Creator:
Ross, A. M.
System:
The UNT Digital Library
A Rapid Colorimeric Method for the Determination of Phosphate in Uranium Waste Solutions
Report discussing tests of a new colorimetric method. From abstract: "A colorimetric method, which is a modification of the classical phosphomolybdic acid method, has been developed for the determination of phosphate in synthetic uranium waste solutions...The chief advantage of the method, over those presently included in HW Manuals, is the rapidity with which determinations may be carried out."
Date:
August 22, 1949
Creator:
Sege, C. A. & Ice, C. H.
System:
The UNT Digital Library
The Solvent-Extraction Performance of Redox IC Columns (ANL June 1948 Flowsheet) Using Raschig Ring Packing, and Unirradiated Uranium: Redox Technical Study No. 14
A report which summarizes the performance data obtained from Redox solvent extraction IC Column studies made prior to January 15, 1949 in accordance with conditions of the A.N.L. June 1, 1948, Flowsheet.
Date:
August 22, 1949
Creator:
Hartzell, L. O.; Woodfield, F. W. & Bradley, J. G.
System:
The UNT Digital Library
Special Irradiation of Temperature-Indicating Liquid: Final Report--Production Test 105-266-P
A report discussing an experiment conducted to determine the effect of radiation on the melting point of Tempilaq, a commercially available, temperature-indicating liquid.
Date:
August 18, 1949
Creator:
Carbon, M. W.
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
System:
The UNT Digital Library
Urine Analysis for Tritium Oxide
This report analyzes a procedure based on the production of acetylene from the active water, with subsequent measurement of the ionization caused by the tritium beta particle. This eliminates the troublesome absorption on the chamber walls when hydrogen is used, and provides a rapid method for the preparation of the urine samples.
Date:
July 27, 1949
Creator:
Healy, J. W.
System:
The UNT Digital Library
Rate of Burnout of Absorbers
Report discussing change in absorptivity of some rare earth elements over time.
Date:
July 19, 1949
Creator:
Gillette, P. R.
System:
The UNT Digital Library
Determination of Organic Acids in Process Solutions
Abstract: "A method has been established for the estimation of volatile organic acids in aqueous process solutions containing UNH, nitric acid, ANN, sodium dichromate and small amounts of hexone. The practice is to distill a 400 ul or 500 ul sample in the presence of an excess of phosphoric acid and ferrous sulfate under a high vacuum; a special apparatus utilizing a receiver cooled with a dry ice-isopropanol mixture is employed. The distillate is taken up in isopropanol and then titrated potentiometrically with standard potassium hydroxide solution. Since nitric acid and organic acids are present, two end points are observed. The potassium hydroxide added between these end points is equivalent to the organic acids. In the titration, CO2 from the atmosphere or in the potassium hydroxide is a source of error. The former was avoided and correction was made for the latter."
Date:
June 29, 1949
Creator:
Brouns, R. J. & Pollock, C. W.
System:
The UNT Digital Library
Redox : Analytical Research Group Report [for] March and April 1949
Report discussing the results of research conducted by the Hanford Works Analytical Research Group during the period from March 1949 to April 1949.
Date:
June 21, 1949
Creator:
Schmidt, H. R.
System:
The UNT Digital Library
The Coulometric Titration of 8-Hydroxyquinoline
Abstract: "A new method of determining 8-hydroxyquinoline by titration with electrolytucally-generated bromine has been developed. Results show good precision in the range 0.4 mg. to 1.6 mg. total 8-hydroxyquinoline, with 99% confidence limits of less than +/- 2%. An electronically-regulated constant current source, required by the method, is described. A new indicator system with high sensitivity to free bromine is discussed."
Date:
June 16, 1949
Creator:
Carson, W. N.
System:
The UNT Digital Library
Fast Neutron Sensitivity of the CP Meter
Abstract: "The sensitivity to fast neutrons of a CP Meter ionization chamber of the type used for health physics beta and gamma survey measurements has been investigated."
Date:
June 10, 1949
Creator:
Baker, E. E.; Gydesen, F. R. & Whipple, G. H., Jr.
System:
The UNT Digital Library
Parian and Teflon in 1A Redox Solutions
This report analyzes Parian and Teflon that were exposed to solutions of 1AX, 1AS, and 1AF, ANL June 1, 1948 Flowsheet, under conditions described in the following report.
Date:
May 9, 1949
Creator:
Koenig, W. W.
System:
The UNT Digital Library
The Critical Mass of a Spherical Reactor with Variable Intrinsic Buckling
Abstract: "The critical mass both of an untamped and water-tamped sphere with parabolic radial variation of the intrinsic buckling is calculated by a perturbation method. The result is applied to finding the minimum critical mass of plutonium in water suspension with infinite water temper; the calculations show that the minimum critical mass at constant concentration may be reduced by an amount of the order of 7.6% when the concentration of plutonium is permitted to vary throughout the suspension."
Date:
April 28, 1949
Creator:
Muller, G. M.
System:
The UNT Digital Library