Download or read book Processes for Recovery of Uranium and Thorium from Graphite base Fuel Elements written by L. M. Ferris and published by . This book was released on 1961 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recovery of Uranium and Thorium from Graphite Fuels written by M. J. Bradley and published by . This book was released on 1960 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Processes for Recovery of Uranium and Thorium from Graphite Base Fuel Elements written by and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory-scale tests on methods for recovering uranium and thorium from graphite-base reactor fuel elements are reported. The 90% HNO/sub 3/ process, which involves simultaneous disintegration and leaching in 21 M HNO/sub 3/, is applicable to all fuel elenments which do not contain coated fuel particles. Leaching of irradiated (0.001% burnup) fuels containing 3 and 12% uranlum recovered approximates 99.3 and 99.9%, respectively, of the uranium in two 4-hr leaches with boiling acid. The graphite residue retained> 50% of the long-lived fission products. Three successive leaches of fuel containing uranium and thorium recovered approximates 99% of both elements. Uranium recoveries by combustion in oxygen followed by dissolution of the ash hn nitric acid or fluorlde-catalyzed nitric acid are quantitative only when the fuel is not coated, does not contain Al/sub 2/O/sub 3/-coated fuel particles, and is free from impurities such as iron. During combustion up to 95% of the Ru-106 was volatilized from irradiated specimens. Recoveries, by leaching with 70% HNO/sub 3/, from fuel specimens containing Al/sub 2/O/sub 3/-coated fuel particles were greater than 99% when the specimens were ground finer than 200 mesh to ensure crushing of the fuel particles. (auth).

Download or read book The Removal of Uranium and Thorium from Fueled graphite Materials by Chlorination written by J. L. Cook and published by . This book was released on 1964 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Separation of Uranium from Thorium by Liquid Metal Extraction written by F. W. Dodge and published by . This book was released on 1960 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Exponential Experiment with a Thorium uranium Fuel in Graphite written by C. H. Skeen and published by . This book was released on 1960 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent Developments in Thorium Fuel Processing written by and published by . This book was released on 1966 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aqueous Processing of Thorium Fuels written by Raymond Eugene Blanco and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Metallurgy of Nuclear Fuel written by V. S. Yemel'Yanov and published by Elsevier. This book was released on 2013-10-22 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Metallurgy of Nuclear Fuel: Properties and Principles of the Technology of Uranium, Thorium and Plutonium is a systematic analysis of the metallurgy of nuclear fuel, with emphasis on the physical, mechanical, and chemical properties as well as the technology of uranium, thorium, and plutonium, together with their alloys and compounds. The minerals and raw material sources of nuclear fuel are discussed, along with the principles of the technology of the raw material processing and the production of the principal compounds, and of the pure metals and alloys. Comprised of three parts, this volume begins with an introduction to the history of the discovery of uranium and its position in the periodic system; its use as a nuclear fuel; radioactivity and isotopic composition; alloys and compounds; and physical, mechanical, and chemical properties. The effect of mechanical and thermal treatment, thermal cycling and irradiation on the physicochemical properties of uranium is also examined. The next two sections are devoted to thorium and plutonium and includes chapters dealing with their uses, alloys and compounds, and methods of recovery and purification. This book is written for university students, but should also prove useful to young production engineers and scientific workers who are concerned with problems in the metallurgy of nuclear fuel.

Download or read book Recovery of Uranium from Graphite Fuels by Oxidation and Fluorination Part I Design and Initial Operation of Engineering scale Apparatus for Rover Fuel written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Declassified 24 Sep 1973. The recovery of uranium from graphite -- uranium carbide fuels, such as the Kiwi type used in the Rover project, by oxidation with oxygen or air and subsequent direct fluorination of ash by elemental fluorine is being investigated on an engineering scale. Accordingly, a small, engineering-scale, experimental facility was designed, built, and operated. The first six tests, made with a 21/2-in.-diam reactor containing 5 to 7 prototype Kiwi-H-1B-type fuel rods up to 18 in. in length, indicated process feasibility on this scale for oxidation by air or oxygen and fluorination by elemental fluorine. Uranium recovery from the fuel of more than 99.9% was demonstrated, and the reaction temperature and the carbon monoxide content of the reactor effluent were within safe limits. The oxidation ash remained in place in the reaction vessel, thus making it possible to perform this two-step process in one vessel. Oxygen utilization up to 45% and fluorine utilization up to 60% were demonstrated. Separation of the volatile uranium fluoride product from other volatile fluorides was also demonstrated. (auth).

Download or read book Preparation and Processing of Particulate Nuclear Fuels written by and published by . This book was released on 1964 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recovery of Uranium from Spent Zirconium based Reactor Fuels in the Oak Ridge Volatility Pilot Plant written by and published by . This book was released on 1964 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactor Fuel Processing written by and published by . This book was released on 1965 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Unirradiated Fuel Element Processing for Recovery of Uranium of Various Isotopic Values written by Gareth John Morgan and published by . This book was released on 1970 with total page 14 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 1962 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamental Nuclear Energy Research 1962 written by U.S. Atomic Energy Commission. Division of Plans and Reports and published by . This book was released on 1962 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thorium Fuel Cycle written by International Atomic Energy Agency and published by . This book was released on 2005 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a critical review of the thorium fuel cycle: potential benefits and challenges in the thorium fuel cycle, mainly based on the latest developments at the front end of the fuel cycle, applying thorium fuel cycle options, and at the back end of the thorium fuel cycle.