Thermodynamic Modeling of the Radionuclides Behavior in the Process of the Oxidation of Radioactive Graphite in the Oxide-Carbonate Melts
Graphite is use neutron moderator and reflector in many nuclear reactors.Obsolete graphite nuclear reactors are put out of operation, leading to formation of a large quantity of radioactive graphite It is proposed that irradiated reactor graphite is processed by high-temperature chemical oxidation in salt melts with an oxidant, which is part of the salt melt, leading to formation of exhaust gases: gaseous compounds of carbon and oxygen (C02 and CO).This study deals with carbon oxidation and physical -chemical transformations of radioactive elements dur ing the interaction between graphite waste of the atomic power industry and salt melts.The method of thermo dynamic simulation is used.The carbon melt decreases the transfer of radionuclides to the gaseous phase as compared to incineration of graphite in the atmosphere.
thermodynamic modeling radionuclides the radioactive reactor graphite oxidation
N.M.Barbin D.I.Terentiev A.V.Peshkov S.G.Alekseyev
Ural State Agrarian University,Russia,620075,Yekaterinburg,42,K. Liebknecht St Ural Institute of State Fire Service of EMERCOM of Russia,Russia,Yekaterinburg SIC Reliability and service life of large systems of machines,Ural Branch of Russian Academy of Scie
国际会议
The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)
昆明
英文
116-119
2013-11-19（万方平台首次上网日期，不代表论文的发表时间）