State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA

Ul’yanovka, Russia

State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA

Ul’yanovka, Russia

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Razyapov A.Z.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Zhdanovich O.A.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Krasil'Shchik V.Z.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Stepchenko V.N.,Environmental Control Information Systems Research and Production Association
Russian Journal of General Chemistry | Year: 2015

The possibilities of modern analytical techniques to solve control problems in high-technology and environmental studies are considered. The first part of the article provides a review of the key concepts of the analytica. The second part is devoted to the problems associated with the analytical software technologies for high-purity substances and evaluation of the detection limits of elements by atomic spectrometry methods. The final part describes the analytical methods used in environmental monitoring. The main attention is paid to the studies that have been intensively conducted at the Research Institute of Chemical Reagents and Special Purity Chemical Substances, starting with 1970s. The institute has preserved traditional approaches and comprehensive research programs until present, even though the range of research topics is not so wide and the problems to be solved are not so ambitious. © 2015 Pleiades Publishing, Ltd.


Makarenkov D.A.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Volkov P.A.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Nazarov V.I.,Moscow State University of Mechanical Engineering
Russian Journal of General Chemistry | Year: 2015

Results of researches of processes of mixture and granulation by an integration method with preliminary mechanoactivation in relation to fermental preparations are given. Efficiency of use of the granulated enzymes in comparison with a powdery material is shown. Granulation mechanisms for different types of enzymes are revealed. The various equipment of technological lines is tested and recommendations about their regime parameters are made, material characteristics reflecting efficiency of process of a granulation are defined. The technological scheme of receiving the granulated enzymes is developed. © 2015 Pleiades Publishing, Ltd.


Retivov V.M.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Volkov P.A.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Lebedeva L.A.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Krasil'Shchik V.Z.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | And 2 more authors.
Russian Journal of General Chemistry | Year: 2015

Extraction of trace metal impurities from a matrix followed by the determination of the mass concentration of the impurities by means of atomic emission spectrometry was studied. The method allows determination of the concentrations of such contaminants as Fe, V, Mn, Cu, Ni, and Co at the level of 10-5-10-7 wt %. © 2015 Pleiades Publishing, Ltd.


Glushko A.N.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Loseva E.A.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Kislyakova L.S.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | Bessarabov A.M.,State Research Institute of Chemical Reagents and Special Purity Chemical Substances IREA | And 2 more authors.
Russian Journal of General Chemistry | Year: 2015

The road maintenance key objective is to increase the wheel-road adhesion factor in the autumn and winter periods and, at the same time, preserve the quality of the bituminous concrete surface. With this aim in mind, chemical research institutions created anti-icing chemicals (AICs) that are used by highway services. The key physicochemical index of AIC quality is its melting salts content. The melting salts used are calcium chloride, sodium chloride, potassium chloride, or sodium formate. When the same pellet comprises all the required components in needed proportions, an anti-icing pelleted compound is best suited to serve the purpose of road maintenance in winter. Due to exothermal dilution of CaCl2, the freezing point goes down to-20°C, and NaCl dissolution rate and ice-melting rate rise. The pellets penetrate deeply into ice right to the road surface and the solution breaks the ice-to-pavement bond, making it much easier to remove ice and snow. © 2015 Pleiades Publishing, Ltd.

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