Studies on the thermal destruction of a mixture of vacuum residue (tar) and primary coal tar (PCT) with and without Fe 3 O 4 and β-FeOOH catalytic additives, which were performed using thermogravimetry and differential scanning calorimetry in an inert atmosphere at a heating rate of 10 K/min, are reported. Based on the results of thermogravimetric analysis and the kinetic parameters of the process, activation energies were calculated, and these activation energies can be used in the development of methods for the technological calculation of reactors and the selection of construction materials for their manufacture.

The article is devoted to the investigation of the influence of electrohydropulse processing of Zhana-Ozen oil sludge using the method of probabilistic-deterministic planning of the experiment, in which the mutual influence of various factors is taken into account. It has been established that the dominant factors that influence the decrease in the kinematic viscosity, the increase in the yield of light and middle fractions up to 300 degrees C from the Zhana-Ozen oil sludge in the process of destruction of the heavy part of the organic mass of oil are inter-electrode distance, processing time and discharge voltage.

The article presents the results of the hydrogenation of anthrcene in ethanol medium. As a catalyst nanocatalytic agents used were iron and nickel, which were introduced in microspheres of coal. The benchmark of catalyst used was highly dispersed iron hydroxide - getit beta-FeOOH. Experiments were conducted in high pressure reactor. The degree of conversion was estimated by residual anthracene. A small catalytic effect is observed with the introduction of 1,5 nanoparticles of iron.

The kinetic parameters of the thermal degradation of coal in a temperature range of 32–458°C without additives and in the presence of nanosized iron powder as a catalyst were calculated based on thermogravimetric analysis data. The rate constants and activation energies of the first and second steps of thermal degradation processes were determined. The influence of the catalytic additive on the value of activation energy was found. The results of the thermogravimetric analysis can be used in a study of thermocatalytic modification processes for the hydrogenation of fossil coals.

Taking Naomaohu coal as research object, raw coal (RC) was divided into three solid products, which were residue (RD), deposit (DP) and soluble (SL), using high temperature and pressure extraction apparatus. The effects of the solvent-coal ratio, temperature, coal size and solvent type on the extraction yields of SL and DP were investigated and proximate and ultimate. TG-DTG and FTIR analysis were determined. The results shown that: when the dosage of solvent was certain, with the amount of coal adding, the yield of DP increased, the yield of SL decreased slightly; increasing temperature promoted extraction of SL and DP, and at higher temperature than 375 the yield of SL increased rapidly because of large pyrolysis reaction; coal size had little influence on extraction; choosing tetralin and 1-MN as solvents, the total yield of SL and DP was similar, which was higher than toluene. Hydroxyl substance and aliphatic hydrocarbon contents of RC were mainly collected in SL and DP, ash content was mostly collected in RD, the moisture content of RD, DP and SL was far below RC.

This work determines the effect of hydropyrolysis of coal through a stabilizing reaction by impregnation method using catalysts such as Fe(NO3)(3), FeCl3, FeSO4 center dot(NH4) 2SO(4)center dot 6H(2)O. If you add three kinds of catalyst the hydropyrolysis change degree are increases. Adding semi-iron ammonium sulfate of 5 % the tar yield increased from 14.3 % without catalysts to 17.9 %. The preservation of ammonium radical gives the possibility to increase the formation of coal tar and degree of coal pyrolysis.

The relevance of this work consists in treatment of complex brown iron ores. Large volumes of off-balance ores are an additional source of production raw materials, however, there is still a problem of their treatment by effective complex methods.This work shows a possibility of using liquid hydrocarbons as the reducers during thermochemical preparation of brown iron concentrates of the Lisakovsky field to metallurgical conversion and studies the features and main regularities of a roasting process of Lisakovsky gravitymagnetic concentrate in the presence of liquid hydrocarbons.The initial concentrate was treated by solution of a liquid hydrocarbon reducer (oil: phenyl hydride: water), which was subjected to heat treatment with the subsequent magnetic dressing.Research by the X-ray phase analysis of reducing products has shown that the main phases of magnetic fraction of a roasted product are presented by magnetite in a small amount hematite and quartz. Generally, only relative intensity of peaks is changed.The thermodynamic analysis of interaction between the hydrocarbons, which are a part of oil, and iron oxides was carried out. This analysis allowed us to suppose a reducing mechanism for the brown iron ores by liquid reducers.The data obtained by the thermodynamic analysis are confirmed by experimental results. It is proved that with increasing hydrogen-to-carbon ratio the probability of proceeding reactions of interaction between oxide of iron (III) and liquid hydrocarbon increases.The differential and thermal analysis allowed us to study a heat treatment process of the Lisakovsky gravity-magnetic concentrate, which is pre-treated by oil solutions, as well as to show a possibility for proceeding the process of interaction between liquid hydrocarbon and ferriferous products of Lisakovsky gravity-magnetic concentrate.It is found that with increasing temperature in the treated samples of LGMK the hydrogoethite dehydration product interacts with hydrocarbons, which product is strongly magnetic magnetite.

By results of thermodynamic calculations diagrams the partial pressure of systems Ba-O-2-SO2-As-2, Ba-O-2-SO2-Sb-2 are constructed. The analysis of interactions of compounds of antimony and arsenic in systems Ba-O-2-SO2-As-2, Ba-O-2-SO2-Sb-2 is carried out at 25 degrees C and 1 atm. general pressure. Areas of stability of arsenate and arsenite of barium, and also antimonite and an antimonat of barium are defined.

Calculation of activation energy and kinetic parameters of magnetization combustion of Lisakovsk gravitational-magnetic concentrate in the presence of liquid hydrocarbons (oils of different deposits) was made. The conditions of thermo-gravitational processing were chosen. It was established that catalytic destruction of organic compounds of liquid hydrocarbons adsorbed on oolits allowed decreasing temperature of dehydration and reduction of gravitational-magnetic concentrate.

For the first time there was calculated and plotted Eh-pH diagram of the system Ca(AsO2)(2) - Ca-3(AsO4)(2) H2O at 298,15 K and 101,3 kPa. A probable orientation of process, the order of oxidation of complex products, areas of stability and equilibrium correlation of solid, liquid phases and other various compounds are possible to determine with high accuracy by means of this diagram. It is also possible to predict optimum conditions of carrying out oxidation-reduction processes in the system Ca(AsO2)(2) - Ca-3(AsO4)(2) - H2O.

The results of investigation on iron ore concentrate enrichment of the Lisakovsk deposit are presented in the article. The experiments have been carried out using the experimental method of Gauss-Seidel. It has been established the optimal recovery mode of Lisakovsk's gravitationally magnetic concentrate (LGMC) firing in the presence of the hydrocarbon reducing agent (Karazhanbas highly viscous oil) to ensure maximum transfer rate of nonmagnetic iron mineral gravitationally magnetic concentrate hydrogoethite into magnetite with subsequent magnetic separation in field of low-intensity.

The article deals with determining optimal conditions of catalytic-cavitational processing of dephenolized primary LLP "Saryarca-Spetskoks" coal tar in the presence of pseudo-homogeneous catalytic additives (FeSO4 center dot 7H(2)O and NiSO4 center dot 6H(2)O). Cavitation reprocessing of heavy hydrocarbonaceous raw material in the presence of catalytic additives is directed t. the production of components of combustive- lubricating materials and chemicals. For description of statistical multifactor dependences the generalized multifactor Protodjakonov-Malyshev's equation was used. The completeness of process passing was estimated according to fraction yield with the boiling start point (270 degrees C).

The article deals with optimisation of the process of extractive cavitational dephenolizing of primary coal tar of LLP "Sary-Arca Spetskoks". The technological scheme of the process is suggested. It is proved that cavitational processing of an extracted mix has a positive influence on the extraction degree of phenols, and allows the concentration of ethanol in the extragent to be reduced, which has a considerable influence on the economic indexes of the process. The influence of various factors on extraction of phenols has been defined by means of the method of factor planning of an experiment, and the dominating factors influencing on the extraction process have been determined.

The athor of the paper has calculated the petroleum asphaltene molecules and radicals within the framework of semiempirical approximation AM1, included in the quantum-chemical package Gaussian-2003. The geometric configuration of the calculated structures has been defined. Visualization of the particles was carried out in the graphical shell GaussView. The boundary orbitals of the petroleum asphaltene molecule and its radicals have been analyzed. The energy parameters of the calculated structures have been evaluated. The possibility and the probable mechanism of atomic hydrogen formation in the melt of resin-asphaltene substances have been shown.

The present of the work calculated and build up diagram of potential-pH of system BiAsO4-H2O, with using to thermodynamic analysis. There are determined zones of stability of BiAsO4-on tne basis of diagram.

Thestructural- chemical characteristics (delta, eta, Beta) of fuel fossils on the basis of elemental analysis were calculated. The application of the new structural-chemical classification for genetic row of fuel fossils was shown.

Investigation of the process of extraction of arsenic from technological copper-containing solution with lead was carried out. Optimal conditions of carrying out the process have been found out; correlation of velocity of arsenic precipitation from temperature was studied; the meanings of activation energy have been calculated; on the basis of these calculations the conclusions about possible character of process were made. Obtained results of calculations mathematical correlations have been checked on authenticity and significance with the help of statistical criteria. The results of carried out experiments have shown the principal possibility of extraction of arsenic from technological copper-containing solution with this carbonate.