Laboratory of Pyrochemical Processes and Electrochemical Technologies

Head of the Laboratory:imgonline-com-ua-PhotoPositive-6etx53ruQT
Dedyukhin Aleksandr Evgenievich
PhD (Chemistry)
Tel.: (343) 374 59 04

e-mail: dedyukhin[at]ihte.uran.ru

The Laboratory of Pyrochemical Processes and Electrochemical Technologies was created on the 29th of December within the framework of the “New Laboratories” project launched by the Ministry of Science and Higher Education of the Russian Federation.
There are 24 research associates including 2 DSc(Chemistry) and 3 PhDs.

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Research directions:
Corrosion mechanisms of metal and ceramic construction materials in molten media, promising for creation of pyrochemical technologies for reprocessing of raw materials, including spent nuclear fuel.
Experimental research and thermodynamic modeling of high temperature processes between metals, oxides, nitrides in order to create novel resource-saving technologies for reprocessing of man-caused raw materials, including spent nuclear fuel.
The following results were achieved during the implementation of the Project within 2019-2021:
  • Interaction processes between REM nitrides and chloride melts were studied in the temperature range of 450 – 700 °С.
  • The corrosion behavior of alloys promising for MSR application was studied in the alkali metal chloride melts with addition of REM chlorides in the temperature range of 500 – 650 °С.
  • The influence of different types of the preliminary treated surfaces on the corrosion behavior of steels in molten chloride mixtures was determined.
  • The solid phase synthesis of the Gd2-хLiхZr2O7-δ (0≤x≤0.5) and Gd2-хMgхZr2O7-δ (x=0.05, 0.1, 0.15, 0.2) compounds was performed. A new method of soluble synthesis of the same compounds to be used as construction and functional materials for high-temperature applications in molten alkali-halide media was developed. The corrosion behavior of these materials in the melt based on lithium chloride was studied.
  • 13 published research papers are indexed in Web of Science, 23 research papers are indexed in Scopus.
  • 4 RF patents were issued.
Research fellows of the Laboratory take part in the implementation of Research and Development government contracts focused on the development of the high temperature electrochemical technology for processing of the spent nuclear fuel of fast neutron reactors within the framework of the “Breakthrough” (Proryv) project. Researchers are also involved in the Research and Development project on technologies of molten salt reactors of a new generation within the framework of the complex program headed by Rosatom.