The increase in the production of hot-dip galvanizing products is accompanied not only by an increase in the yield of dross, but also by its accumulation, due to the lack of rational processing technology. In this paper, the results of balance experiments on the processing of metal and oxidized fractions previously isolated from dross are presented. The effect of the consumption of such chlorinating reagents as CaCl2 and NH4Cl is studied in this work. The obtained results fully confirmed the previously obtained data established in the conditions of laboratory studies. It is shown that the melting of the metal fraction of dross at T = 450°C for 60 minutes with the addition of 2% NH4Cl from the weight of the initial sample ensures the production of a pure zinc ingot that practically does not contain impurity metals. Under the conditions of burning the oxidized component with the addition of 6% CaCl2 from the weight of the initial sample, the maximum removal of lead from the cinder was achieved from 0.35 to 0.002%. At the same time, it is not possible to achieve a decrease in the iron content in the stub. Its final content in the cinder is 0.25%. Under the conditions of burning the oxidized component of dross together with NH4Cl, at its optimal consumption equal to 15% of the weight of the initial sample, high-quality zinc oxide was obtained, suitable for its use as a mineral additive in animal and bird feed. Extraction of metals-impurities in the sublimates the conditions of burning at T = 1000°C and the duration 60 min, was, %: Cu, Ni, Fe -75%; Pb, Cd - 98%.

The article presents a review of scientific works related to the research of methods intended to obtain iron-containing reagents, and their properties for the dissolved hydrogen sulfide neutralization in wastewater. It is summarized that sodium ferrite can be one of the perspective reagents for hydrogen sulfide removal. The desulfurization process efficiency depends on the Fe(OH)3 activity formed during sodium ferrite hydrolysis. The sodium ferrite synthesis with the help of thermal interaction of iron oxide with soda as well as sintering of iron sands (alumina production waste) with soda is described herein. The X-ray diffraction analysis results for the products obtained showed that sodium ferrite monophase was formed at 900 oC and exposure time of 1 h, whereas the compound Na(Fe0,75Al0,25)O2 that is an isomorphous mixture of ferrite and sodium aluminate was formed under optimal process parameters – 1000 oC and exposure time of 1 h, when the reactive iron oxide was replaced with ferrous sands. The phase transformation of the furnace charge consisting of iron sands and soda was studied with the use of differential thermal analysis, and the formation of the Na(Fe0,75Al0,25)O2 compound was established. A complex iron-containing coagulant for tests intended to treat wastewater from hydrogen sulfide was obtained with the use of sodium ferrite.

In the article the shows the role of dialectics in the formation of theoretical geology. A separate geological form of the motion of matter was revealed. It is certain that the movement of matter as a whole and the geological form of the movement of matter occurs cyclically and due to the expansion of matter itself with the pulsating nature of the processes occurring in it in certain cycles.

This paper presents the results of studying the features of formation and mineral composition of secondary quartzites of the Alkamergen deposit (Pavlodar region) through mineralogical and petrographic studies of samples on an automated diffractometer. The hydrothermal-altered rocks of the deposit, which are represented by medium-temperature secondary quartzites of the alunite facies, have been studied. The results of the research made it possible to establish the genetic features of the formation of the Alkamergen deposit. In terms of rock composition and ore mineralization, this object is a typical representative of acid-sulfate type deposits.

This article presents the results of study of fluid inclusions in calcite and quartz of the Devonian, Carboniferous and Permian strata of the eastern part of the Precaspian syneclise and the Aktobe Preuralie of Pre-Ural trough. Were determined by microthermometry method the temperatures of melting and homogenization of fluids in crystals of rock and the types of hydrocarbons in inclusions. Interpretation of the measurement results made it possible to determine the most specific values of pressure and temperature, equal, respectively, 350-500 atm and 85°-130°C increasing up to 650 atm / 350°C and more towards the Urals. Accordingly, the geothermal gradient increases from west to east from 24°C/km to 40°C/km in the Aktobe Preuralie. The mineralization of fluid inclusions varies in the same direction from 10-12% to 3-6% of the weight equivalents of NaCl. These results demonstrate three types of gradients: the lowest in the western inner and platform parts of the Precaspian basin (24°C/km), the average in the Pre-Ural trough and the highest in the eastern suture with the Ural folded system. Accordingly, there is an increase in the geothermal background in the Aktobe Preuralie of Pre-Ural trough to 40°C/km.

Uranyl ions sorption of by interpolymer system based on industrial ion exchangers: strongly acidic cation exchanger Amberlite IR120 and strongly basic anion exchanger AB-17-8 was studied. Based on the obtained data, the degree of sorption of uranyl ions by individual sorbents and interpolymer system Amberlite IR120:AB-17-8, polymeric chain binding rate and dynamic exchange capacity of individual sorbents and interpolymer system Amberlite IR120:AB-17-8 were calculated. Based on the data obtained, a comparative analysis of the sorption of uranyl ions by initial sorbents and interpolymer system was carried out, which showed that the highest degree of sorption of uranyl ions by the interpolymer system occurs within the ratios of 50%Amberlite IR120:50%AB17-8. It was found that the maximum degree of sorption of uranyl ions after 56 hours of remote interaction of ion exchangers was 38.0%, when polymeric chain binding rate was 4.63% and dynamic exchange capacity was 0.25 mmol/g. Rate of uranyl ions extraction by the initial ion exchangers 100%Amberlite IR120 and 100%AВ-17-8 was 28.0% and 13.0%. The experimental studies performed have shown a high sorption activity of interpolymer systems for uranyl ions compared to the initial ion exchangers, which makes it possible to use them for highly efficient sorption technology for extracting uranyl ions from industrial solutions.

This article presents the effectiveness of the use of a new complex of aluminosilicomanganese ferroalloys as an oxygen-containing agent necessary in the production of steel and special alloys. The aluminum silicomanganese alloy is smelted using manganese ore and high-ash coal. In addition to the low cost of the melt, it provides deep purification of both aluminum, silicon and manganese, as well as low-carbon steels from non-metallic impurities. Aluminum silicomanganese is intended for investigation of electrical resistivity of charge materials for melting. Questions of research of specific electrical resistance of charge materials for the smelting of aluminosilicomanganese, in particular, high-ash coals, are considered. The measurements were carried out in the Tamman laboratory unit on a special combined experimental setup connected via converters. Studies on changes in the electrical conductivity of coal were carried out in the temperature range 25-1500°C at a heating rate of 15 deg/min. The main regularities of the formation of the electrical resistivity of charge materials depending on the temperature are determined. The proposed method of measurement makes it possible to obtain in-depth information about the physicochemical properties of charge materials. High-ash coal "Saryadyr", having a constant specific electrical resistance at high temperatures, can be achieved optimal melting mode.

In this paper, based on the results obtained, a general assessment of the integrated waste gas treatment technology of the TPP was carried out in terms of its technological and environmental-economic efficiency. The principal possibility of implementing the technology of cleaning waste gases from SO2 and NOx in a continuous mode is shown. When using the developed technology, the sulfur distribution in the gases obtained after purification is ~ 5%, and the main part – 95% is captured by the carbonate melt of alkali metals (Na, K, Li). Extraction of NOx into the melt is ~60%. Thus, already at the stage of chemical absorption of waste gases, favorable prerequisites are created for deep purification of gases from sulfur and toxic nitrogen compounds. An assessment of the economic efficiency of using the developed technology for burning coals with and without a high sulfur content has been carried out. A comparative analysis of the results of the cost of coal without sulfur with the cost of coal with a high sulfur content showed a significant economic effect, formed due to the difference in the cost of coal without sulfur and high sulfur content. Recommendations have been issued in relation to the conditions of small boiler plants operating on coal combustion, which will optimize the organization of the technology and use it in continuous operation.

The article presents the results of studies on the production of ferrosilicon, ferrosilicoaluminium and Fe-Si-Al ligatures when replacing steel chips with magnetite. The object of research was the carbonaceous rock of the Borly deposit. Thermodynamic modeling was carried out using the HSC-5.1, Chemistry software package of the Finnish metallurgical company Outokumpu, based on the principle of minimizing Gibbs energy, and experimental studies-electric melting in an arc furnace at 1000-1400°C begin to form. It was found that under equilibrium conditions, the interaction of Borly ash components with magnetite and carbon in the presence of silicon oxide with silicon-containing reduction products - Si, SiO, FeSi2, Fe3Si, FeSi, SiC; with an increase in the amount of carbon, the degree of silicon extraction in SiC increases. in the elemental state and decreases- in Fe3Si, FeSi; the degree of silicon extraction into the alloy increases, amounting to at 2000°C and 51% carbon, and the degree of silicon transition into the alloy also increases, amounting to 76.4% at 2100°C and 51% carbon. It is determined that, from Borly ash under equilibrium conditions, it is possible to obtain ferrosilicon grades FeSi15, FeSi25, FeSi45 and FeSi50 in the temperature range 1260-1860°C and ferrosilicoaluminium grades FS45A10 and FS45A15 in the temperature range 1930-2100°C. It has been experimentally established that ferrosilicon of the FeSi60 brand (68.7% Si, 1.3% Al) is formed from the conclusions of the electric melting of coal waste together with magnetite concentrate, quartzite and coke.

The availability of reliable data on the PVT properties of reservoir fluids plays a leading role in calculating the reserves of oil and gas reservoirs, estimating the oil recovery factor, well testing, numerical reservoir modeling and for making informed decisions in field development design. In practice, the results of field, laboratory and theoretical studies are used simultaneously to substantiate the properties of natural hydrocarbon mixtures. At each of the noted stages, specialists strive to increase the reliability of the data obtained and develop methods for their interpretation. Determining the properties of reservoir fluids of an oil field is a prerequisite for the effective use of various methods of influencing the bottomhole zone of wells, selection of equipment for well operation. The properties of reservoir fluids are determined by various thermobaric conditions and change depending on the current state of the reservoir and the characteristics of reservoir pressure changes. All known methods for determining the properties of formation fluids are divided into two groups: experimental and computational. Each of the groups has both advantages and certain disadvantages.