Author: David G. CliftonPublisher:
ISBN:
Category : Isotope separation
Languages : en
Pages : 17
Book Description
Thorium-plutonium Chemical Separation Process
Author: David G. CliftonPublisher:
ISBN:
Category : Isotope separation
Languages : en
Pages : 17
Book Description
Process chemistry data for the separation of thorium, uranium and plutoniium using a modified thorex flow sheet
Author: J. L. SmeeChemical Separations in Nuclear Waste Management
Author: Gregory R. ChoppinPublisher:
ISBN:
Category : Science
Languages : en
Pages : 128
Book Description
The separation of radioactive waste materials into their chemical components is at the heart of all efforts to reduce the volume of nuclear waste. In Chemical Separations in Nuclear Waste Management: The State of the Art and a Look to the Future, the authors discuss the present state and possible future directions of separations science and technology. The book presents an overview of the environmental legacy from nuclear weapons production in the United States and the former Soviet Union, the magnitude of the cleanup efforts that are underway in both countries, and the pivotal role played in these efforts by separations science. Needs that are specific to the future development of separations science and technology are emphasized. Contents:1. Overview of Chemical Separation Methods. II. The Environmental Legacy of the Cold War: Site Cleanup in the United States. III. Environmental Impacts of Separation Technologies in Russia. IV. Non-Aqueous Separation Methods. V. U.S.-Russian Cooperative Program in Research and Development of Chemical Separation Technologies. VI. Radiation Protection Aspects of Nuclear Waste Separations. VII. Accelerator-Driven Transmutation Technologies for Nuclear Waste Treatment.
Thorium Fuel Cycle
Author: International Atomic Energy AgencyPublisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 120
Book Description
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.
Studies on the separation of plutonium from thorium/uranium by electrochemical reduction : application of the electrochemical technique to the modified thorex process
Author: Y. SzeNuclear Wastes
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309052262
Category : Science
Languages : en
Pages : 590
Book Description
Disposal of radioactive waste from nuclear weapons production and power generation has caused public outcry and political consternation. Nuclear Wastes presents a critical review of some waste management and disposal alternatives to the current national policy of direct disposal of light water reactor spent fuel. The book offers clearcut conclusions for what the nation should do today and what solutions should be explored for tomorrow. The committee examines the currently used "once-through" fuel cycle versus different alternatives of separations and transmutation technology systems, by which hazardous radionuclides are converted to nuclides that are either stable or radioactive with short half-lives. The volume provides detailed findings and conclusions about the status and feasibility of plutonium extraction and more advanced separations technologies, as well as three principal transmutation concepts for commercial reactor spent fuel. The book discusses nuclear proliferation; the U.S. nuclear regulatory structure; issues of health, safety and transportation; the proposed sale of electrical energy as a means of paying for the transmutation system; and other key issues.
Method of Separating Thorium from Plutonium
Author: Separation of Thorium Impurity from Plutonium in the Nitrate Anion Exchange Process
Author: S. Fredric MarshPublisher:
ISBN:
Category : Ion exchange
Languages : en
Pages : 10
Book Description
Heavy element separation for thorium- uranium-plutonium fuels
Author: G. R. GrantPlutonium Chemistry in the UREX+ Separation Processes
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The project "Plutonium Chemistry in the UREX+ Separation Processes" is led by Dr. Alena Paulenova of Oregon State University under collaboration with Dr. George Vandegrift of ANL and Dr. Ken Czerwinski of the University of Nevada at Las Vegas. The objective of the project is to examine the chemical speciation of plutonium in UREX+ (uranium/tributylphosphate) extraction processes for advanced fuel technology. Researchers will analyze the change in speciation using existing thermodynamics and kinetic computer codes to examine the speciation of plutonium in aqueous and organic phases. They will examine the different oxidation states of plutonium to find the relative distribution between the aqueous and organic phases under various conditions such as different concentrations of nitric acid, total nitrates, or actinide ions. They will also utilize techniques such as X-ray absorbance spectroscopy and small-angle neutron scattering for determining plutonium and uranium speciation in all separation stages. The project started in April 2005 and is scheduled for completion in March 2008.