Search academic texts

Information × Registration Number 0221U100249, 0120U101709 , R & D reports Title Researches of physical and chemical processes in the lava-like fuel-containing materials of complex the 'New Safe Confinement - Shelter Object' by electrokinetic methods popup.stage_title Head Gabielkov Sergii V., Доктор фізико-математичних наук Registration Date 04-01-2021 Organization Institute for Safety Problems of Nuclear Power Plants of the National Academy of Sciences of Ukraine popup.description2  The processes of leaching of uranium oxide inclusions lava-like fuel-containing materials (LFCM), which are activated by electrokinetic methods, have been studied. Microchemical analysis of LFCM indicates the possibility of targeted modification of inclusions from uranium oxides and compounds and the transfer of lava to a more stable state. Leaching of uranium oxide from LFCM inclusions is activated inhomogeneous constant electric fields with a voltage of 1 - 2 V between carbon electrodes in an aqueous solution of electrolyte with sodium nitrate with a concentration of ~ 10%. Leaching of these inclusions by standard methods using concentrated nitric acid requires significant time and the use of chemically active and hazardous compounds and is, therefore, less effective than the methods proposed in this work. The presence of uranium oxide inclusions in LFCM was confirmed by X-ray diffraction and electron microscopy. Product Description popup.authors Dolin Viktor V. Zhyganiuk Igor V Zubko Oleksandr V popup.nrat_date 2021-01-04 Close