Engineering Journal of Satbayev University最新文献

{"title":"Estimation of recoverable reserves of carbonate reservoirs at the early development stage","authors":"G.B. Duzbayeva, R. N. Uteev, V.Z. Khazhitov, A. S. Mardanov","doi":"10.51301/ejsu.2022.i5.05","DOIUrl":"https://doi.org/10.51301/ejsu.2022.i5.05","url":null,"abstract":"Nowadays the boundary parameters of reservoir identification are expanding due to the scientific and technological progress which cause in the improvement of field development technologies and the creating of new EOR (enhanced oil recovery) methods. Usually new oil fields are presented by low-permeable rock with complex geological structure which results in demand of updated analytical tools, because existing methods of oil displacement characteristics construction annually loses its relevance. The aim of this article is to present new methodology of operational evaluation of recoverable oil reserves both for terrigenous and carbonate reservoirs, which considers the difference and features of poroperm properties of reservoirs. This methodology is based on special core analysis and relative permeability curves which are less time-consuming comparing to 3D simulational model. The fractional flow curve was used as a basic tool which operates current water saturation as reserves recovery and phase permeability, as equivalent to water cut. Modifying these parameters makes it possible to predict the flow process and reserves recovery. The comparison of obtained results with the results of applying traditional methods shows a high level of forecasting reliability, since the retrospective forecast was fully confirmed by historical development data.","PeriodicalId":373991,"journal":{"name":"Engineering Journal of Satbayev University","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133140051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Disposal of solutions of copper electrofining processing of non-ferrous metal scrap","authors":"S. V. Gladyshev, S.D. Rakhimova, L. Imangalieva, A. K. Kasymzhanova","doi":"10.51301/ejsu.2022.i3.03","DOIUrl":"https://doi.org/10.51301/ejsu.2022.i3.03","url":null,"abstract":"The results of studies on the utilization of copper electrorefining solutions, zinc-containing sublimation dusts of pyrometallurgical processing of non-ferrous metal scrap are presented. Zinc-containing sublimation dusts for the regeneration of commercial electrolyte by the neutralization method were used for the first time. Contained in dust, zinc oxide, when dissolved in a sulfuric acid electrolyte, binds sulfate ions of free sulfuric acid and increases the pH of the solution. When the pH of the precipitation of non-ferrous metals is reached, they are precipitated in the form of hydroxides, which makes it possible to return to processing a significant amount of copper, nickel, zinc, lead and tin contained in them. Studies of the material composition of the commercial electrolyte of copper and zinc sublimates for the processing of non-ferrous metal scrap have been carried out. The conditions for purification of the electrolyte by the method of staged neutralization are determined. The first stage of neutralization was carried out with zinc sublimates, the second and third stages with potash. As a result of the first stage of neutralization to pH 4.7, lead was obtained - a tin-containing product that can be processed together with lead-containing copper electrorefining sludge. As a result of the second stage of neutralization with potash to pH 7.1, a precipitate was obtained, after treatment of which in a KOH solution, a precipitate of copper oxide was obtained. As a result of the third stage of neutralization to pH 9.5, a nickel-zinc-containing precipitate was obtained. After treating the precipitate with a KOH solution, a zinc-containing solution and a nickel-containing precipitate were obtained, after calcining which a nickel oxide precipitate was obtained.","PeriodicalId":373991,"journal":{"name":"Engineering Journal of Satbayev University","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125589567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the issue of thermal destruction of coal matter","authors":"L. Mullagaliyeva, S. Baimukhametov, V. Portnov, V. Yurov","doi":"10.51301/ejsu.2022.i1.09","DOIUrl":"https://doi.org/10.51301/ejsu.2022.i1.09","url":null,"abstract":"The proposed article provides a model of the thermodynamic properties of coal matter and coal methane. It is shown that methane in the Karaganda coal basin is present mainly in the form of a solid solution. It is necessary to energetically influence the solid solution of coal methane itself and bring it to destruction with the release of methane. It was found that due to the greater number of gas molecules or more volatile substances, the activation energy, on the contrary, decreases. It is shown that the lower the Gibbs energy of the carbohydrate, the lower the activation energy for the decomposition of methane coal. It was found that the activation energy is numerically equal to the molar mass of coal, the expression for which has been recently obtained. The final conclusion is that in order to extract methane from unloaded coal seams, where methane is in a solid solution state, it is necessary to supply energy to the coal seam in order to heat this seam to a temperature of 35ºС, when the methane is free. According to Kazakh researchers, the most effective way to heat coal is a method based on the action of a high-voltage electromagnetic field on a coal seam.","PeriodicalId":373991,"journal":{"name":"Engineering Journal of Satbayev University","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125173399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production of ferroalloys from carbonaceous rock with replacement of steel chips with magnetite","authors":"V. Shevko, A.M. Mambetali, G. Karataeva, B.A. Lavrov","doi":"10.51301/ejsu.2022.i2.01","DOIUrl":"https://doi.org/10.51301/ejsu.2022.i2.01","url":null,"abstract":"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.","PeriodicalId":373991,"journal":{"name":"Engineering Journal of Satbayev University","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133764068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Method for the separation of non-ferrous metals and ree from the mother liquor of the crystallization process AlCl3·6H2O","authors":"N. Dosmukhamedov, Е. Zholdasbay","doi":"10.51301/ejsu.2023.i1.01","DOIUrl":"https://doi.org/10.51301/ejsu.2023.i1.01","url":null,"abstract":"The paper analyzes the raw material base of the coal deposit in the world and Kazakhstan. It is shown that with the development of the coal industry, the output of ash and slag waste is growing, which occupy large areas for storage and their negative impact on the environment. The paper describes the mechanism of the process of rectification of the mother liquor with ammonium hydroxide with the release of non-ferrous metals and REE into the precipitate (cake) and the production of a circulating solution based on calcium chloride. The results of thermodynamic calculations of the Gibbs free energy of deposition of non-ferrous metals from the mother liquor in the temperature range of 293-323 K (20-50°C), showed the fundamental possibility of separation of non-ferrous metals into the precipitate. The results of thermodynamic calculations are fully confirmed by experimental experiments on the study of the regularities of the separation of non-ferrous metals (CM) and REE into the target commercial product (cake) from the mother liquor obtained after crystallization of aluminum chloride hexahydrate by rectification with NH4OH. In the process of rectification of the mother liquor, a solution of calcium chloride in the amount of 989.9 ml and 11.91 g of cake (precipitate) containing NFM and REE was obtained. The resulting solution is reversible and is used for chlorinating ash firing. A high (more than 99%) extraction of NFM and REE in the cake was established. According to the phase composition, the cake consists of NFM and calcium hydroxides, with a predominant, up to 50%, content Zn(OH)2. The cake can be easily processed by known metallurgical methods with maximum extraction of NFM and REE. The process of rectification of the mother liquor is the final stage of the innovative technology of complex processing of ash and slag waste of the TPS of Kazakhstan. The paper shows the technological scheme of the developed technology of complex ash processing and optimal technological parameters. The technology will stimulate the development of the energy industry by completely recycling them to obtain commodity products with high added value and increase the efficiency of thermal power plants operating on coal combustion by involving ash waste in processing as an additional source of raw materials.","PeriodicalId":373991,"journal":{"name":"Engineering Journal of Satbayev University","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121281230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive study of physico-chemical properties of low-grade phosphate raw materials","authors":"A. Kareeva, A. A. Bolysbek, U. Nazarbek, P. Abdurazova, Y. Raiymbekov","doi":"10.51301/ejsu.2023.i1.04","DOIUrl":"https://doi.org/10.51301/ejsu.2023.i1.04","url":null,"abstract":"The focus of the article is on the characterization of low-grade Chilisai phosphorites through a comprehensive analysis of their physicochemical properties. The structure of phosphorites of this deposit was studied using modern instrumental methods, including chemical and energy-dispersive analysis, IR-Fourier spectroscopy, X-ray diffraction analysis and mineralogical analysis. According to the results of chemical analysis, the material composition of nodular phosphorites was determined, and the elemental mass composition was determined by the method of energy dispersive analysis. The qualitative composition of low-grade phosphorites was determined by IR-Fourier spectroscopy. The combination of these research methods gave a comprehensive idea of the material composition and quality of the studied samples. This study provides valuable information on the low-grade Chilisai phosphate rock and its suitability for processing into phosphorus-containing products.","PeriodicalId":373991,"journal":{"name":"Engineering Journal of Satbayev University","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116968627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prospects for the development of mineral resources of the largest mining enterprises in the short and long term periods of their activity. Part I. Copper, iron","authors":"S.A. Akylbekov, B.S. Uzhkenov","doi":"10.51301/ejsu.2022.i5.04","DOIUrl":"https://doi.org/10.51301/ejsu.2022.i5.04","url":null,"abstract":"On the basis of stock and published materials, the article reveals some potential of the earth's interior of the Republic, showing the possibility of expanding the mineral resource base of existing mining enterprises by reassessing and reassessing near-surface and searching for new deposits of medium and large depths. In the future, the creation of new territorial industrial complexes in some ore regions of Kazakhstan on the basis of approved reserves and projected mineral resources is not excluded. It is noted that: for copper, in addition to copper-porphyry, there are great prospects for identifying coppery sandstones and shales; according to iron assessment, numerous geological and geophysical anomalies that have not been sufficiently or not studied at all, which have prospects for searching for deposits of both shallow, medium and large depths; It is recommended to reinterpret materials over the area of a large number of ore body outcrops, collapses and ore occurrences and consider them as criteria for prospecting for either deep deposits or placer prospecting; for bauxite raw materials - significant reserves are projected in areas of known deposits and ore occurrences, certain reserves can be identified in deposits of mining and mining chemical raw materials and, most importantly, analyze materials on depressions with coal deposits, under which large and super-large (unique) Аl2О3 resources can be concentrated, as well as pay special attention to non-bauxite aluminum raw materials, where researchers predicted billions of dollars in reserves Аl2О3. It is concluded that existing and newly created enterprises will be provided with raw materials for many years.","PeriodicalId":373991,"journal":{"name":"Engineering Journal of Satbayev University","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125895367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of the electrical characteristics influence of the current supply on the technical and economic indicators of the melting of ferrosilicochrome","authors":"А.К. Zhunusov, V.I. Kulinich, A.K. Zhunusova","doi":"10.51301/ejsu.2022.i4.03","DOIUrl":"https://doi.org/10.51301/ejsu.2022.i4.03","url":null,"abstract":"This article presents the results of a research of the influence of the electrical characteristics of the current lead on the technical and economic indicators of ferrosilicochromium smelting. The parameters of the operation of the furnace No.43 of the Aksu Ferroalloy Plant in connection with the change in the characteristics of the current lead during the modernization of the EPU are considered. According to the experimental results of calculations, the power Ru, the composition of the metal and slag from the production of ferrosilicochromium are have great importance, almost with a rare use of the electrical resistance of the solid charge and the electrical resistivity of the slag, regardless of the readings of the sensors and the electrical parameters of the current supply. When using computational computer-computer programs (CRP), eleven modes of network operation are used. In this paper, mode 10 is closest to the production mode. According to mode 10, the electrical parameters of the current supply have been improved. According to the conditions of experimental calculations, the power Ру, the compositions of the metal and slag of ferrosilicochromium production remain constant. Modernization of a short network and an increase in the deepening of electrodes into the charge led to a decrease in Rу to 0.945÷0.958 mΩ and secondary voltage Uл to 155 V, to a decrease in the SiC content in the slag to 15.1 and a decrease in flyoff SiО2 to 67.0÷68.6 kg/t. The deepening of the electrodes with their reduced fit increased the furnace productivity to 79.8 t, and the specific power consumption decreased by 870 kW/h·t.","PeriodicalId":373991,"journal":{"name":"Engineering Journal of Satbayev University","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130846614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modern monitoring tools – effective way to ensure safety in subsoil use","authors":"K. Rysbekov, Huayang Dai, M.B. Nurpeisova, V.H. Lozynskyi, G. M. Kyrgyzbayeva, K. Kassymkanova, А.М. Abenov","doi":"10.51301/ejsu.2022.i3.06","DOIUrl":"https://doi.org/10.51301/ejsu.2022.i3.06","url":null,"abstract":"Work aim is to carry out geomonitoring of rock mass state, which provides for comprehensive accounting and analysis of all natural and man-made factors, as well as use of methods and control tools developed by authors.Work uses complex method, including: study of mining and geological conditions, structural features of rocks of deposits and conduct of mine surveying observations in mines based on innovative methods and means of geomonitoring developed by the authors. Research materials of geomechanical processes at the mines of Akzhal, Saryoba Sayak and others are presented during projects implementation of «Development of innovative methods for predicting and assessment of rock mass state to prevent technogenic emergencies» and «Comprehensive monitoring of slow deformation processes of the earth's surface during large-scale development of ore deposits of Central Kazakhstan», and also used in the educational process of Satbayev University. As a result of research: methodology for comprehensive assessment of rocks state has been developed, which makes it possible to consider features of geological structure of undermined strata and, thereby, improve quality of geomechanical support for mining operations; design of permanent forced centering point (FCP) for installation of high-precision instruments has been developed, which makes it possible to ensure speed and accuracy of centering, as well as to exclude use of tripods; scientifically substantiated possibility of predicting stress-strain state of rock mass in the studied deposits, i.e. it is possible to determine: tensile strength - σco; clutch - K; density - γ and strength of rocks - f according to the scale of M.M. Protodyakonov; composition of hardening solution from mining waste has been developed to increase stability of sections of ledges of quarry, which has high fluidity, adhesion to rocks and sufficient strength.","PeriodicalId":373991,"journal":{"name":"Engineering Journal of Satbayev University","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132086019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prospects for the development of mineral resources of the largest mining enterprises in the short and long term periods of their activity. Part II. Chrome, bauxites","authors":"S.A. Akylbekov, B.S. Uzhkenov","doi":"10.51301/ejsu.2022.i6.05","DOIUrl":"https://doi.org/10.51301/ejsu.2022.i6.05","url":null,"abstract":"Based on stock and published materials, the article reveals some potential of the earth's interior of the Republic, showing the possibility of expanding the mineral resource base of existing mining enterprises by re-evaluating and re-evaluating near-surface and searching for new deposits of medium and deep depths. In the future, the creation of new territorial industrial complexes in some ore regions of Kazakhstan on the basis of approved reserves and predicted mineral resources is not ruled out. It is noted that: for copper, in addition to porphyry copper, there are great prospects for identifying cuprous sandstones and shales; according to the iron-estimation, numerous geological and geophysical anomalies are insufficiently or not studied at all, which have prospects for the search for deposits of both small, medium and large depths; in a chrome way, it is recommended to perform a reinterpretation of materials on the area of a large number of outcrops of ore bodies, collapses and ore occurrences and consider them as criteria for prospecting for either deep deposits or placers; for bauxite raw materials, significant reserves are predicted in areas of known deposits and ore occurrences, certain reserves can be identified in deposits of mining and mining and chemical raw materials and, most importantly, analyze materials on depressions with coal deposits, under which large and super-large (unique) Al2O3 resources, as well as pay special attention to non-bauxite aluminum raw materials, where the researchers predicted billions of Al2O3 reserves. It is concluded that existing and newly created enterprises will be provided with raw materials for many years.","PeriodicalId":373991,"journal":{"name":"Engineering Journal of Satbayev University","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115139024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}