HIGH-PURITY MATERIALS

HIGH-PURITY MATERIALS:

- Development of products from high-purity zinc selenide for powerful IR lasers;

- Development of technology for producing high-purity ultradisperse oxides and acetates for optoelectronics, fiber optics and nuclear power engineering;

- Production of oxide and carbon nanomaterials by oxidation of volatile organoelemental compounds (OEC) in the mode of burning and by the reaction of organic compounds with halogen derivatives accompanied with the release of free carbon.

Main results:
- Methods for producing high-purity zinc selenideand products from it for powerful IR lasers have been developed. Research results are protected by several patents of the Russian Federation;
- A universal technology has been developed for producing high-purity ultra disperse oxides of Zn, Pb, Si, Al, Fe by the unique method – oxidation of volatile О E С s in the mode of burning. Small-batch production has been organized with the productivity of 2-10 kg/hour. Corresponding high-purity acetates have also been obtained.
- A patent has been obtained for the method of purification of ZnO from Si impurity, allowing an increase in the purity of ZnO with respect to Si impurity by three orders of magnitude, and 2-5 times with respect to other impurities. ­

Leading experts:

- Mikhail Fedorovich Churbanov, Academician of the Russian Academy of Sciences, D.Sc. (Chemistry), Professor, Head of Inorganic Chemistry Department at UNN;
- Evgeny Mikhailovich Gavrishchuk, D.Sc. (Chemistry), Professor, Head of Department of Chemistry of High-Purity Substances;
- Illarion Avramovich Feshchenko, Cand.Sc. (Chemistry), Senior Researcher, Head of Laboratory.

Main technological and research equipment: 

- Technological installation for oxidation of О E С s and fractionators;
- Energy-dispersion X-ray fluorescence spectrometer EDX-720;
- Chromatographic mass-spectrometer;
- IR Fourier spectrometer.

Main partners:

- RFNC-VNIIEF, Sarov.

Main customers:
- FSUE «RFNC-VNIIEF Supply and Support», Sarov.

Key projects (sources of financing): 

- The analytical departmental target program of the Federal Agency for Education «Development of the scientific potential of higher education institutions». Activity 1, topic 1.31.06 .
- Long-term contracts with RFNC VNIIEF in Sarov on the development and delivery of hi-tech products to foreign and domestic consumers.

Main publications: 

- Tsinovoy Yu.N., Feshchenko I.A., et al. Method for increasing the specific surface of powdered zinc oxide. Patent RU 2247074 С 2. Bulletin No. 6 dated 27.02.05
- Tsinovoy Yu.N., Novotorov Yu.N., Feshchenko I.A. A method for producing lead tetraacetate. Patent RU 2277530 С 1. Bulletin No.16 dated 10.06. 06.
- Novotorov Yu.N., Feshchenko I.A., Tsinovoy Yu.N., Taynov A.V. A method for purification of zinc oxide from silicon impurity. Patent RU 2309897 С 2. Bulletin No. 31 dated 10.11.07.

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