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Uraniferous Phosphate Resources and Technology and Economics of Uranium Recovery From Phosphate Resources, United States and Free World: Volume 2. Technology and Economics of Uranium Recovery from Phosphate Resources, United States and Free World

Description: From abstract: This report summarizes data of the uraniferous phosphate resources of the United States in detail and of the rest of the Free World more generally (Volume 1). It also evaluates the technical, economic, and environmental feasibility of production of uranium as a by-product, co-product, or single product from the uraniferous phosphate resources (Volume 2).
Date: June 1979
Creator: De Voto, Richard H. & Stevens, D. N.
Partner: UNT Libraries Government Documents Department

Uraniferous Phosphate Resources and Technology and Economics of Uranium Recovery From Phosphate Resources, United States and Free World: Volume 1. Uraniferous Phosphate Resources, United States and Free World

Description: From abstract: This report summarizes data of the uraniferous phosphate resources of the United States in detail and of the rest of the Free World more generally (Volume 1). It also evaluates the technical, economic, and environmental feasibility of production of uranium as a by-product, co-product, or single product from the uraniferous phosphate resources (Volume 2).
Date: June 1979
Creator: De Voto, Richard H. & Stevens, D. N.
Partner: UNT Libraries Government Documents Department

The Extraction of Uranium from Phosphate Solutions

Description: Abstract: "A process for the extraction and depoisoning of uranium in strong phosphoric acid solution with tributyl phostphate (TBP) is described. The formation of a complex between uranyl and phosphate ions necessities the use of a salting agent which is capable of destroying this complex and releasing the uranyl ion into an organic extractable species. Of various salting agents tried, ferric nitrate was the most successful. It not only provides nitrate ion for the formation of uranyl nitrate but also forms a very stable ferric-phosphate complex, thus completely tying up the phosphate ion when added in equi-molar quantities. Stripping of the enriched solvent is accomplished with phosphoric acid."
Date: 1956
Creator: Baxman, H. R.
Partner: UNT Libraries Government Documents Department

Recovery of Plutonium From Slag and Crucible

Description: Report evaluating different methods of preparing nitric acid solution and different methods of separating plutonium from this nitric acid solution of slag and crucible. Methods are explained and experimental data is given.
Date: June 15, 1951
Creator: Groot, C.; Hopkins, H. H. & Schulz, W. W.
Partner: UNT Libraries Government Documents Department

Airborne Radioactivity Surveys for Phosphate in Florida

Description: Report discussing airborne radioactivity surveys, aimed at finding uraniferous phosphate deposits, in ten areas of Florida. A subsequent ground investigation of two radioactivity anomalies out of eight was conducted. Information on radioactivity measurements for each area is given as well as conclusions.
Date: August 1953
Creator: Moxham, R. M.
Partner: UNT Libraries Government Documents Department

Airborne Radioactivity Surveys for Phosphate in Florida

Description: Introduction: Deposits of phosphate in Florida, located beyond the limits of known producing areas, have been reported by prospectors and mining companies. Much of the information has been based upon prospecting and exploration which was undertaken many years ago and as a result the published data relating to the occurrence of these deposits are fragmentary, and few details relating to specific locations and extent are available.
Date: August 1953
Creator: Moxham, Robert Morgan
Partner: UNT Libraries Government Documents Department

The Solubility of Plutonium (IV) Monobutyl Phosphate

Description: Report discussing a study regarding the identification and property analysis of plutonium (IV) monobutyl phosphate, which formed as a white precipitate in another study of the effects of monobutyl phosphate on plutonium(IV) in tributyl phosphate extractions.
Date: June 28, 1950
Creator: Moore, Robert Lee
Partner: UNT Libraries Government Documents Department

The Hydrolysis Products of Tributyl Phosphate and Their Effect on the Tributyl Phosphate Process for Uranium Recovery

Description: This report follows an investigation on how hydrolysis products of tributyl phosphate (such as dibutyl and monobutyl phosphoric acids, orthophosphoric acid and butanol) effect the tributyl phosphate process for uranium recovery.
Date: April 15, 1951
Creator: Wagner, R. M.
Partner: UNT Libraries Government Documents Department

The Occurrence of Millisite and Pseudowavellite in the Leached Zone at Homeland, Florida

Description: Report discussing studies of millisite and pseudowavellite, which were "locally abundant in the leached zone of the highly phosphatic Bone Valley formation in west-central Florida." Studies include optical determinations and x-ray studies.
Date: March 1953
Creator: Owens, J. P.; Berman, R. & Altschuler, Z. S.
Partner: UNT Libraries Government Documents Department

The Dibutyl Carbitol Extraction Procedure for the Separation of Tubanyl and Phosphate Ions

Description: "This report is concerned with the effectiveness of this washback procedure in reducing the phosphate concentration and also with other methods by which the simultaneous extraction of phosphate along with tuballoy may be minimized."
Date: July 12, 1945
Creator: Lord, E. J.; Andrews, L. J. & Gates, J. W.
Partner: UNT Libraries Government Documents Department

Preliminary Report on the Stratigraphy of the Park City and Phosphoria Formations and an Analysis of the Distribution of Phosphate in Utah

Description: The following report presents a preliminary discussion of the stratigraphy of the Park City and Phosphoria formations with special emphasis on the phosphatic parts, and to discuss the distribution of phosphate in Utah.
Date: May 1957
Creator: Cheney, Thomas M.
Partner: UNT Libraries Government Documents Department

Electron-irradiation-induced crystallization of amorphous orthophosphates

Description: Amorphous LaPO{sub 4}, EuPO{sub 4}, GdPO{sub 4}, ScPO{sub 4}, and fluorapatite [Ca{sub 5}(PO{sub 4}){sub 3}F] were irradiated by electron beam in a TEM. Irradiations were done at -150 to 300 C, 80 to 200 keV, and current densities from 0.3 to 16 A/cm{sup 2}. In all cases, the materials crystallized to form a randomly oriented polycrystalline assemblage. Crystallization is driven dominantly by inelastic processes, although ballistic collisions with target nuclei can be important above 175 keV, particularly in apatite. Using a high current density, crystallization is so fast that continuous lines of crystallites can be ``drawn`` on the amorphous matrix.
Date: December 1, 1996
Creator: Meldrum, A.; Ewing, R.C. & Boatner, L.A.
Partner: UNT Libraries Government Documents Department

Metal Oxide Decomposition In Hydrothermal Alkaline Sodium Phosphate Solutions

Description: Alkaline hydrothermal solutions of sodium orthophosphate (2.15 < Na/P < 2.75) are shown to decompose transition metal oxides into two families of sodium-metal ion-(hydroxy)phosphate compounds. Equilibria for these reactions are quantified by determining phosphate concentration-temperature thresholds for decomposition of five oxides in the series: Ti(IV), Cr(III), Fe(III, II), Ni(II) and Zn(II). By application of a computational chemistry method General Utility Lattice Program (GULP), it is demonstrated that the unique non-whole-number Na/P molar ratio of sodium ferric hydroxyphosphate is a consequence of its open-cage structure in which the H{sup +} and excess Na{sup +} ions are located.
Date: September 24, 2003
Creator: Ziemniak, S.E.
Partner: UNT Libraries Government Documents Department

Domestic Phosphate Deposits

Description: From abstract: Incomplete but recently partly revised estimates indicate the presence of about 10 billion tons of phosphate deposits in the Urited States that is minable under present economic conditions. Deposits too lean in quality or thickness to compete with those in the western and southeastern fields probably contain tens of billions of tons.
Date: November 1952
Creator: McKelvey, V. E.; Cathcart, James Bachelder; Altschuler, Z. S.; Swanson, Rowena W. & Lutz, Katharine
Partner: UNT Libraries Government Documents Department

Reserves of Phosphate in the Land-Pebble Phosphate Field, Hardee, Hillsborough, Manatee, Osceola, Pasco, and Polk Counties, Florida

Description: From abstract: Investigations of the land-pebble phosphate deposits of Florida by the Geological Survey began in November 1947. This report presents the computation of reserves of phosphate rock in the northern part of the district.
Date: January 1951
Creator: Cathcart, James Bachelder; Tillman, C. G. & Dutro, H. B.
Partner: UNT Libraries Government Documents Department

The Chemistry of Uranium(VI) Orthophosphate Solutions

Description: From introduction: This is the first in a series of reports describing an investigation of the chemistry of uranium(VI) orthophosphate solutions which is at present underway in this laboratory. Spectrophotometric, potentiometric and solubility studies have been carried out, and it is the first of these which is reported here.
Date: June 22, 1953
Creator: Baes, Charles F.; Schreyer, J. M. & Lesser, J. M.
Partner: UNT Libraries Government Documents Department

The Aluminum Phosphate Zone in the Peace River Area, Land-Pebble Phosphate Field, Florida

Description: Report discussing information on the aluminum phosphate zone of the Peace River area. At the time of the report, the first plant to treat aluminum phosphate was probably to be located in this area. Information on the geology of the area, weathering/erosion, mineralogy, occurrence and distribution of aluminum, chemical relations and variations of aluminum phosphate, relation of geologic features, mining plans, and tonnage/grade of the zone are included.
Date: December 1953
Creator: Cathcart, J. B.
Partner: UNT Libraries Government Documents Department

Phosphorus Turnover and Photosynthesis

Description: The participation of phosphorus in biological oxidation-reduction reactions of the type found in glycolysis ADP {ne} PO{sub 4}H{sup -} + 3-phosphoglyceraldehyde + DPN{sup +} = 3-phosphoglycerate{sup -} + 2H{sup +} + DPHN + ATP has suggested theories in which similar reactions are proposed for photosynthesis. In these theories the reducing power of photosynthesis is utilized not only for reduction of carbon dioxide but also, by means of coupled oxidations, for the generation of high-energy phosphate bonds, or in the last reference directly for the generation of high-energy phosphate. Since in these theories acyl phosphate is formed from inorganic phosphate, they are amenable to proof without isolation of particular intermediates, by means of radioactive phosphorus. It would be expected that the rate of conversion of inorganic phosphate to organic phosphate would be greater in light than in the dark. They have investigated this possibility under a variety of conditions and are unable to substantiate the theories.
Date: November 1, 1947
Creator: Calvin, Melvin
Partner: UNT Libraries Government Documents Department