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Fine Chemical Technologies

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Vol 7, No 5 (2012)
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THEORETICAL BASES OF CHEMICAL TECHNOLOGY

34-47 47
Abstract
Thermodynamic analysis allowing to establish the influence of external substance addition on the extent of reaction and on the composition of the equilibrium reaction system was carried out. Formulae allowing to estimate this influence were obtained .
48-51 46
Abstract
An approach to the analysis of stationary reactive distillation states multiplicity is considered with methyl-tert-butyl ether as an example. Three steady states of the process corresponding to different values of the product yield are revealed by means of mathematical modeling.
52-56 92
Abstract
Experimental data of a study on the synthesis of ethyl acetate by catalytic dehydrogenation of ethanol are presented. Tests of the catalyst were carried out in a flow reactor at a temperature of 230–300 ° С and under a pressure of 0.1–2.0 MPa. Industrial catalyst NTK-4 was used. Conversion of ethanol was 40–63%, selectivity was 86–94%. In the process hydrogen is produced, and it can be used on one of the stages of the process. Some technological aspects are also presented.
57-64 51
Abstract
The article conside the concepts of perfect and infinitely diluted solutions in chemical thermodynamics.

CHEMISTRY AND TECHNOLOGY OF ORGANIC SUBSTANCES

65-68 57
Abstract
The possibilities of obtaining cymene by toluene alkylation with propylene on sulfocationite Amberlyst 36 Dry were estimated experimentally . The main characteristics of the process are given, and their analysis is presented.
69-72 48
Abstract
The possibility of С4+ hydrocarbon synthesis by the hydroolygomerization of acetylene contained in the gas obtained by electrocracking of organic raw materials is shown.

CHEMISTRY AND TECHNOLOGY OF MEDICINAL COMPOUNDS AND BIOLOGICALLY ACTIVE SUBSTANCES

3-16 51
Abstract
This review presents literature data on studies of the therapeutic role of natural polyunsaturated fatty acids and their derivatives in the processes of inflammation, cancer, and immune response.
17-22 72
Abstract
A review of existing transdermal therapeutic systems of drug delivery is presented. The advantages and disadvantages of these systems and t he dominating ways of development and creation of most advanced forms of medicines are shown.
28-33 48
Abstract
In this paper we report the synthesis donor - acceptor systems based on fullerene C60 and lipophilic meso - arylporphyrins . The obtained conjugates were characterized by IR, UV-vis,1H,13C NMR spectroscopy and MALDI-TOF mass spectrometry. The fluorescence spectra of porphyrin–fullerene C60 donor-acceptor dyads were studied.

SYNTHESIS AND PROCESSING OF POLYMERS AND POLYMERIC COMPOSITES

85-88 46
Abstract
The effect of monomer/water phase volume ratio on the diameter of particles, speed, molecular weight, particle size distribution and stability of the polymeric suspensions prepared in the presence of polystyrene was studied.
89-95 43
Abstract
For the first time the results of a rheokinetic study on the interaction of an oligodienuerethane prepolymer with glycerol under excessive content of isocyanate groups [NCO/OH = 1.5 (mol/mol)] are presented. It was found that, when conversion degree х ≈ 30 %, the interaction of isocyanate and hydroxyl groups is governed by the first order equation with adiabatic self-acceleration. Then (at х > 30 %) the curing process is described by the second order equation. A specific feature of the studied interactions is that, while temperature increases to 50 ° C, the role of the curing catalysts at the final stage is played by urethane and allophanate groups.
96-102 37
Abstract
The applicability of the improved imbedded fiber retraction method for measuring the interfacial tension in plastic/plastic, elastomer/plastic and elastomer/elastomer polymer melt blends has been analyzed experimentally. The technique was shown to be quite adequate for plastic/plastic combinations but failed for blends including elastomers .
103-107 59
Abstract
The possibility of estimating the high-elasticity state of solutions of polymers and oligomers by criterial parameters and dependencies was studied. It was found that the high elasticity of polymer solutions facilitates fiber formation in electroforming. The criteria used are dimensionless values of reduced viscosity and of reduced concentration, as well as the number of nodes in the physical entanglement of the macromolecules .

CHEMISTRY AND TECHNOLOGY OF INORGANIC MATERIALS

73-76 96
Abstract
The article considers the possibility of recovering elemental iodine vapor from the waste gas in the zirconium refining section Carbon sorbents of various types produced in Russia were used for the refining. The sorbents were tested in laboratory units and directly in the production area. The optimal sorbent kind was found. The characteristics of iodine recovery from saturated sorbents were determined. Recommendations on the filter design are given
77-80 47
Abstract
Synthesis of glasses in Bi2O3/MoO3/GeO2/B2O3 system is offered. A method for estimating the uniformity of such glasses is offered. A procedure for measuring the content of germanium oxide in the glassy samples was developed.
80-84 46
Abstract
A method for obtaining zinc oxide nanocomposite on the surface of graphene flakes was developed. The resulting nanocomposites were characterized by a complex of research methods: transmission electron microscopy, X-ray phase analysis, and photoluminescence spectra.
108-112 42
Abstract
In this article the systematic approach to the automation of environmental activities in the oil and gas companies in the Far North is proposed, and on the basis of this approach the functional model of the system of industrial ecological monitoring was built.
113-114 37
Abstract
There is considered management of organizational development as an important factor of socio-ecological-economic sustainable development of enterprises, including chemical. There is disclosed the content of management of organizational development.


ISSN 2410-6593 (Print)
ISSN 2686-7575 (Online)