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  Partner: UNT Libraries Government Documents Department
 Decade: 1940-1949
The Site B Foundry (Final Report on Part I of P.A. No. 151-ML-54-2, F.S. 41)

The Site B Foundry (Final Report on Part I of P.A. No. 151-ML-54-2, F.S. 41)

Date: February 12, 1945
Creator: Lauletta, Paul
Description: The Site B Foundry is equipped for the melting and casting of tuballoy and its alloys. Castings weighing up to 750 pounds and as long as 40 inches can be made. Melting can be carried out in the vacuum, in inert gases or under fluxes. Heating is by high frequency induction. A description of the generally foundry layout, the furnace construction and operation, and of the auxiliary equipment is given in this report. The casting technique used in the Site B Foundry is designed to minimize piping and cold shuts in the billets. The top of the mold is kept hot and freezing of the billet takes place from the bottom. This hot topping minimizes piping. Controlled pouring into warm molds minimized cold shuts.
Contributing Partner: UNT Libraries Government Documents Department
A Study of the Distribution of Impurities in the Extraction of Uranyl Nitrate with Ether from Aqueous Solutions

A Study of the Distribution of Impurities in the Extraction of Uranyl Nitrate with Ether from Aqueous Solutions

Date: April 1, 1946
Creator: Conard, C. R.
Description: Early in 1942 it had been found on a laboratory scale that certain impurities such as the Rare Earths were removed by small water washes from an ether solution of Uranyl Nitrate. It was hoped that in the large production units to be constructed that the water soluble impurities would all be washed out by the time the radioactive Thorium had been removed, so that the decrease in radioactivity could be used as an index of the amount of all kinds of impurity remaining in the ether layer. Experience has taught both the production and the laboratory chemist to view with suspicion a process which claims to separate one element from all others in the periodic system with a simple set of manipulations such as an extraction. Furthermore, there is the familiar example of iodide ion which anyone would expect to be oxidized to iodine and then be transferred almost quantitatively to the ether layer from which it would not wash out. It seemed reasonable that other elements or ions would be found which would fail to wash out of the ether layer. Since the objective was the removal of the neutron absorbers whether their danger coefficients were especially high ...
Contributing Partner: UNT Libraries Government Documents Department
Treatment of Torbernite

Treatment of Torbernite

Date: January 21, 1946
Creator: Brimm, E. O., Dr.
Description: Production of black oxide from torbernite was studied on a laboratory scale from the standpoint of uranium extraction, reagent requirements, and removal of impurities. A small portion of the material was examined for its mineral constituents, using optical properties, X-ray diffraction patterns, and chemical analysis for identification. About 50% of the material was quartz; 30% green crystals of a copper-uranium phosphate; 10% of a black mineral, which was not identified, but which appeared to be an oxide mixture of nickel, cobalt, copper, and molybdenum; and small amounts of gibbsite, laterite and feldspar. There were no lower oxides of uranium in the sample.
Contributing Partner: UNT Libraries Government Documents Department
Extraction of Uranium from Iron Box Sludge

Extraction of Uranium from Iron Box Sludge

Date: March 11, 1947
Creator: O'Connors, R. J.
Description: It was desired to establish the adaptability of iron box sludge, a residue recovered in the initial concentration of domestic ores, as a raw material from the production of high purity U{sub 3}O{sub 8}. This report summarizes the experimental work on the extraction of uranium from iron box sludge and that on the removal of V{sub 2}O{sub 5} and P{sub 2}O{sub 5} from the solutions.
Contributing Partner: UNT Libraries Government Documents Department
Distribution of Boron in Processing of Carnotite Concentrate

Distribution of Boron in Processing of Carnotite Concentrate

Date: March 13, 1947
Creator: O'Connors, R. J.
Description: It was desired to determine the distribution of boron in the various steps of the processing of domestic ore concentrates containing high percentages of boron. The experiments described in this report were directed toward that end. Summary of this report are: (1) a black oxide containing 0.6 ppm of boron was prepared from material containing 350 ppm; (2) less than 0.02% of the boron in the original material appeared in the black oxide; (3) the iron step did not remove appreciable amounts of boron; (4) the bulk of the extracted boron was removed in the soda salt precipitation; and (5) some of the boron was removed in the acid leach and calcination steps.
Contributing Partner: UNT Libraries Government Documents Department
Production of Uranium Metal

Production of Uranium Metal

Date: February 17, 1943
Creator: Nagy, R.
Description: Experiments were carried out for the purpose of increasing production, efficiency, and purity of uranium metal. The electrolytic method as described by Driggs and Lilliendahl for the preparation of uranium metal was followed with but little deviation. The yield of metal at the very best was only 50%. The metal powder produced, at times, was very pyrophoric. Methods were found whereby the metal, at least in part, can be made from the oxides with an average yield of about 90%. The small amounts of sludge and slag accumulated in this modified process can readily be re-used in the electrolysis pot and, therefore, an overall yield of 96% can be obtained. Information accumulated from these experiments has been compiled in such a manner as to be readily available for factory use, for patent purposes and for future publication.
Contributing Partner: UNT Libraries Government Documents Department
Research and Development Reports, Vol. V, No. 6

Research and Development Reports, Vol. V, No. 6

Date: September 30, 1948
Creator: none
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The Direct Pouring of Liquid Metal from the Reduction Bomb

The Direct Pouring of Liquid Metal from the Reduction Bomb

Date: March 9, 1945
Creator: Wilhelm, H. A.
Description: By the time regular crude biscuit production was interrupted at Ames on November 9, 1944, we had made well over 100 special experimental castings by pouring the liquid metal directly from the bomb. The workmen on the regular crude production line were alternating these special castings with the regular runs without the assistance of the research group. The process had reached a state of development 'wherein the castings were made by pouring batches of about 135 pounds of liquid metal directly from the bomb into a water-cooled steel mold in the presence of air at atmospheric pressure. The pouring operation was effected through a mechanically operated valve in the bottom of the bomb. The workability of such a process has been well established, and the quality of the metal has been proved through candling and chemical tests. The first sixty billets produced by this method have been extruded successfully. A number of changes, designed to improve the quality and yield of the product and to simplify the process, have been made since producing the metal for these tests. The first set-up to test the possibility of pouring the metal directly from the bomb was made on a small scale here ...
Contributing Partner: UNT Libraries Government Documents Department
Isolation and Propterties of Curium

Isolation and Propterties of Curium

Date: July 28, 1948
Creator: Werner, L.B. & Perlman, I.
Description: The isolation of curium, element number 96, in relatively pure form has been accomplished. A method, involving a solvent extraction process, is given for the purification of americium from lanthanum and other ions. The discovery of a higher oxidation state of americium led to a method of separating americium from curium. Separation of the two elements was also accomplished by use of ion exchange resins. The details of the isolation of curium are given; the results of the spectrographic analysis, specific activity measurement, and calorimetric determination of half life showed the curium to be relatively pure. The absorption of light of various wave-lengths by an aqueous solution of Cm(III) is described, and some physical effects of the radiation from the curium are noted.
Contributing Partner: UNT Libraries Government Documents Department
Abstracts of Research and Development Reports

Abstracts of Research and Development Reports

Date: September 1, 1947
Creator: AEC
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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