Download or read book Investigation of the Electrolytic Dissolution of Plutonium written by Robert P. DeGrazio and published by . This book was released on 1978 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the Electrolytic Dissolution of Plutonium written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments have shown that it is possible to dissolve plutonium electrolytically in a nitric acid solution. Parameters such as current density and electrolyte composition have been investigated and are discussed. Also included are suggestions for future work.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1978 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrolytic Dissolver for Plutonium Metal written by and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory tests have demonstrated that plutonium metal, as well as aluminum, stainless steel, Hastelloy C, and other alloys, can be electrolytically dissolved in nitric acid using the ''solution contact'' approach. Two sources of plutonium metal were evaluated, weapons' grade and a special reactor grade (42% 24°Pu, 12% 241Pu) from Savannah River, both yielding a dissolution rate of approximately one gram per ampere-hour. A current flow of 150 amperes was attained at 12 volts (limit of the power supply) and higher current should be possible at increased voltage. Since no fluoride was used in the actual dissolution, glass and 304 stainless steel components provided satisfactory performance. Preliminary investigations on the sludge formed (less than 1%) during electrolysis showed it to be soluble in a low fluoride-high nitric wash. The proposed electrolytic dissolver is recommended to replace the present metal dissolution process for the following reasons: (1) eliminates button sectioning--entire buttons are dissolved; (2) eliminates metal burning; (3) eliminates powder handling; (4) eliminates PuO2 dissolution; (5) reduces solids going to the recovery columns; (6) simple to operate; (7) relatively independent of plutonium metal source; (8) reduces operator time resulting in decreased cost and operator exposure; and (9) will directly dissolve many types of plutonium alloys and cladding materials.
Download or read book Dissolution of Neptunium and Plutonium Oxides Using a Catalyzed Electrolytic Process written by TD. Hylton and published by . This book was released on 2004 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the scoping study performed to evaluate the use of a catalyzed electrolytic process for dissolving {sup 237}Np oxide targets that had been irradiated to produce {sup 238}Pu oxide. Historically, these compounds have been difficult to dissolve, and complete dissolution was obtained only by adding hydrofluoric acid to the nitric acid solvent. The presence of fluoride in the mixture is undesired because the fluoride ions are corrosive to tank and piping systems and the fluoride ions cause interferences in the spectrophotometric analyses. The goal is to find a dissolution method that will eliminate these issues and that can be incorporated into a processing system to support the domestic production and purification of {sup 238}Pu. This study evaluated the potential of cerium(IV) ions, a strong oxidant, to attack and dissolve the oxide compounds. In the dissolution process, the cerium(IV) ions are reduced to cerium(III) ions, which are not oxidants. Therefore, an electrolytic process was incorporated to continuously convert cerium(III) ions back to cerium(IV) ions so that they can dissolve more of the oxide compounds. This study showed that the neptunium and plutonium oxides were successfully dissolved and that more development work should be performed to optimize the procedure.
Download or read book ELECTROLYTIC DISSOLUTION OF PLUTONIUM IN NITRIC ACID written by and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acid Dissolution Method for the Analysis of Plutonium in Soil written by E. L. Whittaker and published by . This book was released on 1979 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Plutonium Hydride written by J. E. Burke and published by . This book was released on 1948 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recovery of Plutonium from Incinerator Ash written by F. E. Butler and published by . This book was released on 1964 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrodeposition of Plutonium at a Mercury Cathode written by John A. Porter and published by . This book was released on 1959 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1991-07 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation Into the Dissolution and Direct Assay of High fired Plutonium Dioxide Fusion melt with Potassium Pyrosulfate and Sodium Peroxide written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A fusion-melt and dissolution assay method has been developed and tested for the quantitative analysis of high-fired plutonium dioxide. The method employs fusion of the plutonium dioxide at temperatures greater than the melting point of an eutectic mixture of potassium pyrosulfate plus sodium peroxide. The resultant melt is then titrated directly by either controlled potential coulometry or a gravimetric titration, using standardized ceric sulfate as the titrant. It has been concluded from these investigations that by using the techniques described, high-fired plutonium dioxide (stochiometric) can be quantitatively dissolved and assayed to a degree heretofore beyond the state-of-the-art, while showing direct traceability to the Federal standards. After fusion, the dissolution and direct assay is applicable to existing routine analytical procedures. The method was designed so as to minimize physical handling, simplify the chemical operations, and maximize the personal safety of the analyst at an appreciable cost savings per analysis. (auth).
Download or read book Plutonium Metal Electrolytic Dissolution Flowsheet for the Plutonium Reclamation Facility written by K. H. Oma and published by . This book was released on 1977 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamental Nuclear Energy Research written by U.S. Atomic Energy Commission. Division of Plans and Reports and published by . This book was released on 1963 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973-04 with total page 1508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Kinetic Study of Plutonium Dioxide Dissolution in Hydrochloric Acid Using Iron II as an Electron Transfer Catalyst written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Effective dissolution of plutonium dioxide has traditionally been accomplished by contact with strong nitric acid containing a small amount of fluoride at temperatures of [approximately] 100 C. In spite of these aggressive conditions, PuO[sub 2] dissolution is sometimes incomplete requiring additional contact with the solvent. This work focused on an alternative to conventional dissolution in nitric acid where an electron transfer catalyst, Fe(II), was used in hydrochloric acid. Cyclic voltammetry was employed as an in-situ analytical technique for monitoring the dissolution reaction rate. The plutonium oxide selected for this study was decomposed plutonium oxalate with> 95% of the material having a particle diameter (
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
