Public Joint stock Company

Voronezh, Russia

Public Joint stock Company

Voronezh, Russia
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Kadiev K.M.,RAS Topchiev Institute of Petrochemical Synthesis | Gyul'maliev A.M.,RAS Topchiev Institute of Petrochemical Synthesis | Oknina N.V.,Public Joint Stock Company | Batov A.E.,RAS Topchiev Institute of Petrochemical Synthesis | And 2 more authors.
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2016

The article gives the results of studying the efficiency of heteroatom compounds removal from the heavy residue of the oil sludge organic part in the conditions of catalytic hydroconversion. The results of de-termining the elemental and group hydrocarbon composition of the initial 520°C+ residue of the reservoir oil sludge organic part and 520°C+ fraction obtained from hydroconversion products have shown high conversion of paraffin-naphthene hydrocarbons, resins and aromatics. By applying the methods of chemical thermody-namics and quantum chemistry, it has been shown that in the conditions of hydroconversion of the heavy res-idue, O-containing compounds are easier to convert than N- and S-containing ones, and it is much easier to convert model N-containing components than S-containing.


Kadiev K.M.,Public Joint Stock Company | Oknina N.V.,Public Joint Stock Company | Maksimov A.L.,Public Joint Stock Company | Kadieva M.K.,Public Joint Stock Company | And 2 more authors.
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2016

The article describes the results of oil sludge hydroconversion in the presence of ultradisperse parti-cles of Mo-containing catalyst. The composition of hydroconversion products has been analyzed, physical and chemical properties of hydrogenate fractions have been determined, along with the conversion degree of heavy fraction 520°C+ of oil sludge. The structure and properties of Mo-containing catalyst of hydroconversion discharged from the reaction system with heavy products have been studied. It has been shown that in hydro-conversion conditions, about 80 wt% of 520°C+ organic fraction of oil sludge is converted. It has been estab-lished that in the heavy fraction of hydroconversion product, mineral impurities of initial feed and nano-size and ultradisperse catalyst particles (molybdenum sulfide) are concentrated.


Kuznetsov R.A.,Public Joint Stock Company | Butkalyuk P.S.,Public Joint Stock Company | Butkalyuk I.L.,Public Joint Stock Company
Radiochemistry | Year: 2013

A single-phase alternative of frequently used carbonatization method was suggested as a procedure for radium regeneration from its sulfate. The procedure involves dissolution of RaSO4 in an alkaline solution of disodium dihydrogen ethylenediaminetetraacetate, addition of excess Na2CO 3, and displacement of Ra from the complexes with solutions of Pb(II) salts. In a trial performed with 10.8 mg of RaSO4, the yield of Ra to the target fraction was about 91%. All the operations can be performed without heating, which decreases the Rn emanation rate and makes handling of Ra samples safer. © 2013 Pleiades Publishing, Ltd.


Maslennikov A.G.,RAS Frumkin Institute of Physical Chemistry and Electrochemistry | Rotmanov K.V.,Public Joint Stock Company | Kravchenko N.G.,RAS Frumkin Institute of Physical Chemistry and Electrochemistry | Radchenko V.M.,RAS Frumkin Institute of Physical Chemistry and Electrochemistry | And 2 more authors.
Radiochemistry | Year: 2013

Electrochemical dissolution of Tc metal in 0.5-6.0 M HNO3 was studied. The quantitative characteristics of corrosion and dissolution were determined. At the HNO3 concentration in the electrolyte below 2.0 M and potentials below 650 mV (vs. Ag/AgCl), the metal surface is passivated owing to the formation of difficultly soluble hydrated Tc(IV) dioxide. An increase in the potential leads to the transition of Tc metal to the transpassive state. In solutions containing more than 2.0 M HNO3, hydrated Tc(IV) oxide loses passivating properties. The oxidation of Tc(IV) to Tc(V) is the main reaction controlling the corrosion rate. The results of corrosion rate measurements show that Tc metal can be quantitatively dissolved in HNO 3 of concentration higher than 4.0-6.0 M. The dissolution rate at room temperature is 0.3 mg cm-2 h-1. © 2013 Pleiades Publishing, Ltd.


Averina L.I.,Voronezh State University | Leschinskiy A.A.,Public Joint stock Company | Lukyanenko A.A.,Public Joint stock Company
CriMiCo 2014 - 2014 24th International Crimean Conference Microwave and Telecommunication Technology, Conference Proceedings | Year: 2014

Implementation of genetic algorithms to solution of applied problems in radiophysics based on functions of many variables optimization is discussed. Preferences of these algorithms are demonstrated by the example of two problems: designing Rotman lens with minimum total phase error and synthesis of a two-ring circular antenna array with a specified radiation pattern. © 2014 CriMiCo'2014 Organizing Committee, CrSTC.


Kuznetsov R.A.,Public Joint Stock Company | Butkalyuk P.S.,Public Joint Stock Company | Tarasov V.A.,Public Joint Stock Company | Baranov A.Y.Yu.,Public Joint Stock Company | And 4 more authors.
Radiochemistry | Year: 2012

A target containing 3.16 mg of 226RaCO 3 was irradiated in the neutron trap of the SM reactor for 25 effective days at a thermal neutron flux of 1.5 × 10 15 cm- 2 s- 1. After the irradiation and storage for 17 days, the irradiated material was dissolved and the Ra activation products were chemically isolated. The yields of 229Th, 230Th, 227Ac, and 228Th were determined by α- and γ-ray spectroscopy and by mass spectrometry. Formation of significant amounts of 228Ra, not predicted by the calculations, was revealed. It was suggested that the short-lived isotope 227Ra has a high neutron capture cross section [seff( 227Ra) ̃ 1.5 × 10 3 b]. © Pleiades Publishing, Inc., 2012.


Levakov B.I.,Public Joint Stock Company | Posevin A.O.,Public Joint Stock Company | Pokrovskii A.S.,Public Joint Stock Company | Svyatkin M.N.,Public Joint Stock Company | And 2 more authors.
Radiochemistry | Year: 2012

Decontamination of TV-56 grade Be irradiated in an SM reactor to a neutron fluence of 6 × 10 22 cm- 2 (E > 0.1 MeV) from radioactive impurities by precipitation of its hydroxide with ammonia in the presence of a complexone, diethylenetriaminepentaacetic acid (DTPA), was studied. The decontamination procedure involved dissolution in hydrochloric acid, addition of the complexone, precipitation of beryllium hydroxide with ammonia, separation of the hydroxide from solution, and washing of the hydroxide precipitate. The radioactivity of the solutions obtained after each decontamination step was determined. © Pleiades Publishing, Inc., 2012.


Trademark
; Public Joint Stock Company | Date: 2010-02-09

Interfaces for computers; identity cards, magnetic; electronic agendas; comparators; computers; notebook computers; diaphragms for scientific apparatus; shutter releases (photography); microprocessors; magnetic data media; optical data media; transmitters (telecommunication); transmitters of electronic signals; wafers (silicon slices); nautical apparatus and instruments; cosmographic instruments; navigation apparatus for vehicles (on-board computers); satellite navigational apparatus; audio receivers and video receivers; computer operating programs, recorded; computer programs (downloadable software); processors (central processing units); transmitting sets (telecommunication); radios; vehicle radios; scanners (data processing equipment); smart cards (integrated circuit cards); audiovisual teaching apparatus; integrated circuits; printed circuits; portable telephones; transistors (electronic); automatic indicators of low pressure in vehicle tyres; optical character readers; lift operating apparatus; couplers (data processing equipment); adding machines; readers (data processing equipment); bar code readers; shutters (photography); photovoltaic cells; chips (integrated circuits). Telecommunications routing and junction services; providing telecommunications connections to a global computer network; communications by computer terminals. Computer systems analysis; technical project studies; engineering; material testing; chemical research; research and development for others; technical research; calibration (measuring); consultancy in the field of computer hardware; quality control; computer system design; computer software design; surveying.


Trademark
; Public Joint Stock Company | Date: 2010-02-09

Interfaces for computers; identity cards, magnetic; electronic agendas; comparators; computers; notebook computers; diaphragms for scientific apparatus; shutter releases (photography); microprocessors; magnetic data media; optical data media; transmitters (telecommunication); transmitters of electronic signals; wafers (silicon slices); nautical apparatus and instruments; cosmographic instruments; navigation apparatus for vehicles (on-board computers); satellite navigational apparatus; audio receivers and video receivers; computer operating programs, recorded; computer programs (downloadable software); processors (central processing units); transmitting sets (telecommunication); radios; vehicle radios; scanners (data processing equipment); smart cards (integrated circuit cards); audiovisual teaching apparatus; integrated circuits; printed circuits; portable telephones; transistors (electronic); automatic indicators of low pressure in vehicle tyres; optical character readers; lift operating apparatus; couplers (data processing equipment); adding machines; readers (data processing equipment); bar code readers; shutters (photography); photovoltaic cells; chips (integrated circuits). Telecommunications routing and junction services; providing telecommunications connections to a global computer network; communications by computer terminals. Computer systems analysis; technical project studies; engineering; material testing; chemical research; research and development for others; technical research; calibration (measuring); consultancy in the field of computer hardware; quality control; computer system design; computer software design; surveying.


Filimonov P.Ye.,Public Joint Stock Company | Morus V.L.,Ukrainian Academy of Sciences
Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu | Year: 2012

Purpose. To establish the circulation regularities of motion of granulated solids in the chambers of rectangular cross section for screening in order to choose rational regime and structural parameters of the experimental samples of devices for restricted circulating screening. Methodology. The research method, the stand and the equipment for laboratory researches, experimental investigations of motion of granulated solids under volume application of vibration forces have been created, and the analysis of the research results has been carried out using the methods of mechanics of granulated solids, mathematical statistics and mathematical analysis. Findings. The speed of circulation movement of particles caused by vibrations in cross-section granular material layer under various vibration parameters of the camera has been determined. The dependence of the rate of circulation of the granulated solids of 5 mm class and 10 mm class on the size of the chamber and on the rotating frequency of oscillator shaft has been found. The slowing down of the movement of material with the increase of the screening camera size has been proved. We have established that the maximum screening speed is for materials with 1.2 and 2 mm grain size. For the materials of larger class the maximum velocity of the particles is observed in cells with larger geometrical dimensions, and it is significantly lower than for materials of smaller classes. Originality. For the first time the circulation regularities in the movement of granulated solids during screening in chambers of rectangular cross section have been set. Practical value. The established regularities allow us to select rational regime and design parameters for the experimental samples of devices for restricted circulating screening.

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