Results 1 - 10 of 72
Results 1 - 10 of 72. Search took: 0.015 seconds
|Sort by: date | relevance|
[en] Present article is devoted to toxic properties of liquid fraction of thermolysis products of coals of Zidda Deposit. Therefore, the analysis of liquid fraction of thermolysis products of coals of Zidda Deposit which include the determination of harmlessness and acute toxicity was performed. The experiments were carried out on 30 rabbits and 30 white mice.
[en] Present article is devoted to organo mineral wastes of coal development and processing as a complex energy raw material. The technical conditions on using of ash slag products as fuel for application in various types of furnace plants depending on their humidity, ash content and sulphur content was elaborated.
[en] Present article is devoted to study the influence of low frequency pulses of magnetic field on electrophysical properties of coal. The coal of early stage of metamorphism was studied by means of electrochemical impedance method. The dependences on frequency of relative dielectric permittivity, electrical conductivity and dielectric loss tangent for initial, moistened and dried samples were considered.
[en] Present article is devoted to elaboration and creation a pilot plant in order to study the processes of thermal oxidation and carbonization of coal tar pitch and other products of coal carbonization for obtaining an isotropic coke. The installation diagram is described. The technological parameters, including temperature, heating mode, and duration were defined.
[en] Present article is devoted to intercalated graphite obtained in the system C-HNO_3-R-CH_3COOH, where R=H_3PO_4. The method of modification of intercalated graphite by antioxidant additives in particular by boron or phosphorus compounds in order to achieve the high temperature of combustion start was considered. It was found that modification by acetic acid allowed to decrease the temperature which is enable to avoid the hydrolysis stage. The physicochemical properties of modified samples were studied as well.
[en] Present article is devoted to comparative characteristics of porous structure of carbon-base materials obtained by chemical activation of coals which were alkali-treated by an impregnation and physical mixing method. The value of specific surface area, pore volume of studied samples were defined.
[en] Present article is devoted to application of reversible inhibition method in macromolecular design. The problems of controlled synthesis of polymers and copolymers of various structure by means of pseudo-radical polymerization under the conditions of reversible inhibition with nitroxyl were discussed. The interconnection between structure of various copolymers and their optic, mechanic and other physicochemical properties was considered.
[en] Present article is devoted to coals of Tajik depression. The coals properties of studied territory were considered. The petrographic composition is defined. It was found that all coals contain the following metals: Ti, Cr, Mn, Co, V, Zn, Mo, W, Sr, Ba. The necessity of conducting the comprehensive researches on influence of coals wastes on ecology of region was proposed.
[en] Present article is devoted to new form of antituberculous drug rifampicine on the basis of biopolymers. The new form of antituberculous drug rifampicine on the basis of nano emulsion - oil-in-water stabilized by pectin and lactoglobulin was elaborated. The various types of microcapsules in the emulsion system oil/water stabilized by low methylated pectins with ions of bivalent metals and by high methylated pectins with lactoglobulin concentrate were elaborated as well.
[en] Present article is devoted to processing of coal into ethanol and hydrocarbon fuels for various purposes. The technology on synthesis of benzene and aviation kerosene from ethanol, obtained from alcohol oil, which was extracted from brown coal was elaborated.