Title: Determination of factors effecting the properties of water-air microdispersion
Abstract: The article presents the results of laboratory studies on the effect of the liquid-gas ratio and the foaming agent type on the average water-air micro dispersion size obtained from the foaming agent solution. The size of microbubbles significantly effects the efficiency of flotation and depends on the type and concentration of foaming agent used for their production. A generator was used to obtain water-air micro dispersion. The works were performed to work out the water-air micro dispersion parameters of at different liquid-gas ratio and different performance of the generator. The following foaming agents were used as objects of research: sodium butyl aero flot (BTF), flotanol C-7, butyl triethylenetetramine (B-TETA) at a concentration of 0.5 g/dm3. It has been established, that the optimal phase liquid-gas ratio was 1:1, the optimal capacity of the generator was 6-7.2 dm3/h with an average particle size of air-water micro dispersion- 33-41 mm for BTF solution, 103-107 mm for C-7 solution, 90-93 mm for B-TETA solution. The type of foaming agent used in flotation effects the size and stability of microbubbles. It is established that the flotation agents can be arranged in the following line with respect to their ability to create micro dispersion: IIBK→Senfroth 580→B-TETA→OPSB→Flotanol C-7→T-92→BTF. The best results are shown by BTF that creates micro dispersion of 43-58 μm (t 20-40 °С) and stability of 80 sec with concentration of 0.5 g/dm3.
Keywords: flotation, combined micro flotation, flotation reagent, water-air micro dispersion, microbubbles.
Cite this article as: Turysbekov DK, Tussupbayev NK, Semushkina LV, Narbekova SM, Mukhamedilova AM. Determination of factors effecting the properties of water-air microdispersion. Kompleksnoe Ispol’zovanie Mineral’nogo Syr’a = Complex Use of Mineral Resources. 2022;322(3):5-13. https://doi.org/10.31643/2022/6445.23
Title: Development of the technology of integrated processing the Chelkar deposit potash ore
Abstract: With the huge explored reserves of potash salts in Kazakhstan, there is still no production of potash fertilizers, the demand for which is constantly growing. In this regard, research of processing of the largest Chelkar deposit ore into potash fertilizers and salts is an urgent problem. The article presents the research results of washed potash ore decomposition with nitric acid and nitric acid suspension filtration. The filtering properties and granulometric composition of the insoluble residue were studied, on what basis the decomposition mode with precipitate double washing was determined. To ensure good suspension filterability, washed, uncalcined ore should be used. Tests of a by-product, gypsum, as a gypsum binder were carried out, which confirmed its compliance with the normally hardening gypsum binder of the G-2 B grade. Advantage of the obtained gypsum is its environmental friendliness. Salts, which are chlorine-free water-soluble potassium-magnesium fertilizers have been obtained by crystallization from nitric acid solution. On the basis of results of experimental-and-laboratory tests, a basic flow scheme has been developed for obtaining potash and complex potassium-nitrogen-magnesium fertilizers from the Chelkar deposit ore.
Keywords: carnallite, Chelkar deposit, potash fertilizer, washing, decomposition, evaporation
Cite this article as: Assylkhankyzy A, Seytmagzimova GM, Pochitalkina IA, Seitmagzimov AA. Development of the technology of integrated processing the Chelkar deposit potash ore. Kompleksnoe Ispol’zovanie Mineral’nogo Syr’a = Complex Use of Mineral Resources. 2022;322(3):14-22. https://doi.org/10.31643/2022/6445.24
Title: Obtaining modified sorbents based on natural raw materials of Kazakhstan and research of their properties
Abstract: Kazakhstan takes a leading position in the production of uranium. During the hydrometallurgical processing of uranium-containing raw materials, a significant amount of liquid industrial waste is generated, such as waste solutions that require disposal. One of the most effective methods of cleaning liquid objects contaminated with radionuclides is sorption methods. Synthetic sorbents are not always justified due to their high cost and natural ones due to their low sorption capacity. The production of modified ion-exchange materials based on their combination is an urgent problem in the nuclear industry. The authors considered options for modifying natural aluminosilicate and coal-mineral raw materials of Kazakhstan. For research, zeolite from the previously unexplored Kusmurun deposit and shungite from the Koksu deposit were selected. It is proposed to modify natural sorbents with a tributylphostat and di-2-ethylhexylphosphoric acid mixture in kerosene, a mixture of phosphoric acid and polyacrylamide, technogenic raw materials. The probable mechanism of modification by each of the methods is considered. The sorption properties of the modified sorbents have been studied, and their mechanical strength has been determined.
Keywords: natural sorbents, modification, uranium sorption, mechanical strength.
Cite this article as: Surkova TYu, Abdikerim BE, Berkinbayeva AN, Azlan MN, Baltabekova, Zh. A. Obtaining modified sorbents based on natural raw materials of Kazakhstan and research of their properties. Kompleksnoe Ispol’zovanie Mineral’nogo Syr’a = Complex Use of Mineral Resources. 2022;322(3):23-32. https://doi.org/10.31643/2022/6445.25
Title: Study of the possibility of using zeolite and diatomite in the treatment of oil-contaminated wastewater
Abstract: Numerous harmful substances of anthropogenic origin that are released into the environment, including petroleum products, are the result of the uncontrolled discharge of industrial wastewater into natural water bodies. Operation of oil refining and petrochemical industry enterprises, gaseous emissions and effluents of industrial enterprises, numerous oil and NP spills as a result of accidents and fires at oil storage facilities and oil refineries lead to pollution of water and soil with considerable amounts of crude oil and products of its processing and create a serious threat to the ecology of regions of Kazakhstan. A cardinal solution to the problem of protection of water bodies from pollution by wastewater polluted by oil and NP is to organize such water management of enterprises, under which the system of recycling water supply is developed as much as possible and the discharge of wastewater into water bodies is minimized. Currently, the sorption method of water purification is the most environmentally safe and expedient. When selecting a sorbent for sorption much attention is paid to its sorption characteristics and the availability of raw materials. In addition, the choice of a sorbent depends on such factors as the quality requirement for purification, the condition of pollutants, the stages of purification and others. A wide range of natural sorption materials used in water treatment and water treatment is known. Natural materials based on modified diatomites and zeolites from Kazakhstan deposits are investigated in this work.
Keywords: oil, petroleum products; sorbents; chemical and thermal modifications; sorption purification, wastewater.
Cite this article as: Myrzalieva SK, Bagasharova JT, Akilbekova ShK. Study of the possibility of using zeolite and diatomite in the treatment of oil-contaminated wastewater. Kompleksnoe Ispol’zovanie Mineral’nogo Syr’a = Complex Use of Mineral Resources. 2022;3(322):33-42. https://doi.org/10.31643/2022/6445.26
Title: Monitoring of displacements and deformations of the earth's surface at the Annensky field
Abstract: In connection with the ongoing depletion of mineral reserves located in relatively favorable conditions, at shallow depths, it is increasingly necessary to involve deposits located in complex mining and geological conditions; occurring at great depths, in complex, poorly studied and potentially dangerous conditions. The deposits developed by the underground method are no exception. Safe and efficient development of mineral deposits by underground method, occurring at great depths, is complicated by the fact that with an increase in the depth of mining, the nature of the course of deformation processes in the rock mass and the degree of their impact on the environment change. Studies of deformation processes, their control and forecast in many cases determine the efficiency and safety of the development of deposits of solid minerals. A practical forecast can be made as a result of continuous tracking in space and time of deformation processes. Currently, to determine the displacements and deformations of the earth's surface of the field, complex monitoring is used, which includes the following methods: - methods of preliminary diagnostics of the rock massif; - repeated high-precision leveling; - satellite geodetic methods, primarily interferometry methods; - other methods of instrumental observations in regional and local areas. It should be noted that ground-based methods used for geomechanical monitoring of earth surface deformations, such as repeated geodetic leveling, as well as the use of satellite geodesy methods, do not fully reflect the temporal detail and spatial scale of the changes in the earth surface deformations. Today, the methods and technologies of space radar interferometry are of particular practical value, which make it possible to obtain areal estimates of vertical and planned displacements of the earth's surface with an accuracy of a few millimeters, regardless of illumination and cloudiness conditions. Space radar interferometry (CRI) is an effective tool for direct mapping of the earth's surface movements and deformations of structures over large areas of the study areas.
Keywords: monitoring, displacements of the earth's surface, deformation processes, high-precision leveling, radar interferometry.
Cite this article as: Sadykov BB, Altayeva A A, Stelling W. Monitoring of displacements and deformations of the earth's surface at the Annensky field. Kompleksnoe Ispol’zovanie Mineral’nogo Syr’a = Complex Use of Mineral Resources. 2022;322(3):43-50. https://doi.org/10.31643/2022/6445.27
Title: Increased recovery of free fine gold in the leaching process
Abstract: The current state of world mineral resources is characterized by a decrease in the quality of minerals. An increase in production and processing volumes is possible only through the development of new deposits and the involvement of off-balance ores, dumps and tailings, slags and other industrial wastes in the integrated mining process. More increasing the need for involving raw materials of complex composition, refractory, low-grade, with small reserves, technogenic mineral waste. It becomes more and more relevant as the discovery and exploitation of new deposits, allowing to increase the gold reserve of the Republic of Kazakhstan. The article presents the results of sorption leaching of ore in order to extract gold associated with sulfides, the processes of opening gold. A representative sample was taken and the phase composition of an additional explored ore body was studied at one of the deposits in Kazakhstan. The ore sample was prepared for research: three-time mixing by the ring-cone method, in general, three-stage quarting and mixing were performed. It should be noted that the methods for processing gold-bearing ore raw materials depend on many parameters, including the material composition and technological properties. Samples from the last quarting materials were selected for chemical, sieve and phase analyzes. It was found that the test sample contained 6.04 g / t Au and 7.9 g / t Ag, as well as fineness of gold within 0.01-0.25 mm phase analysis. Mineral gold formations can be easily soluble in cyanide solutions (native gold, electrum), partially soluble (maldonite, or practical are insoluble (tellurides). Gold in ores is present in the form of gold-colored sizes and shapes. Both physical (gravity, flotation) and chemical (cyanide, etc.) methods are used to extract it. Rational analysis also found that gold in the ore under study, crushed to a particle size of 90%, class 0.071 mm, gold is free and in intergrowths is 81.46%, gold associated with sulfides is 14.40%, in rock-forming minerals 1.66%. Based on the data obtained, it can be stated that when cyanidating ore, one should expect rather high rates of gold dissolution (80% or more). Gold extraction from ore with a content of 85% fraction -0.071mm-90.2%, with a content of 85% fraction- 0.071mm-98% with oxidative leaching. Full extraction of gold from ore is possible with sorption cyanide leaching with their preliminary oxidation. The paper considers economically feasible existing and promising technologies for gold extraction at the leading factories of Kazakhstan and abroad.
Keywords: gold ore, sorption leaching, chloroactive compound, sorbent, oxidizing agent.
Cite this article as: Toktar G, Koizhanova AK, Magomedov DR, Abdyldaev NN, Bakraeva AN. Increased recovery of free fine gold in the leaching process. Kompleksnoe Ispol’zovanie Mineral’nogo Syr’a = Complex Use of Mineral Resources 2022;322(3):51-58. https://doi.org/10.31643/2022/6445.28
Title: The study the possibility of development of environment safety technology of creating polymer composites in the conditions of small innovative enterprises
Abstract: The creation of competitive products with a high degree of science intensity is impossible without the use of innovations. However, in their creation process does not always comply with the environmental safety requirements, which leads to negative consequences for the natural environment and human health. This article presents the results of research work group of authors to create wear-resistant polymer composites and their rational use in the processes of parts manufacturing machines running under the impact of the abrasive particles in the absence or limited admission Lube. A method of applying a metal coatings on fibers and powders, in which a metal coating layer with a thickness from 50 nm is applied to the surface by thermal decomposition organometallic compounds vapour using CVD-method, and device for molding polymer composites pressure. Developed innovative polymer composites based on polyamide-6.6 reinforced with metallic fibers and powders used for the manufacture of parts of construction, emergency rescue and other types of equipment. As a result of conducting a comprehensive study reported an increase resources manufactured parts relative serial assembly units. The ecological nature of the creating polymer composites in the conditions of small innovative enterprises was ensured by conducting the process in a closed cycle with the possibility of re-use of the reagents. This eliminated the flow of pollutants into the environment and allowed the implementation of the principles of resource and energy conservation.
Keywords: CVD-method, organometallic compounds, polymer composites, resource saving, environment safety, innovations.
Cite this article as: Kozyreva LV, Kozyrev VV, Fadeev OV. The study the possibility of development of environment safety technology of creating polymer composites in the conditions of small innovative enterprises. Kompleksnoe Ispol’zovanie Mineral’nogo Syr’a = Complex Use of Mineral Resources. 2022;3(322):59-65. https://doi.org/10.31643/2022/6445.29
Title: Study of aluminosilicate microspheres using SEM – EPMA
Abstract: This work discusses the studies based on the microstructural properties of the improved ash and slag materials obtained after flotation enrichment with SEM-EPMA analysis (Scanning Electron Microscope and Electron Probe Microanalysis). According to the results of the analysis aluminosilicate microspheres was found in all four samples with a certain concentration and their similar morphology were identified. The microspheres are characterized by a spherical shape and a rough shell surface. Moreover, the shells are characterized by different morphology, which is typical after flotation enrichment. The size of the microspheres is less than 100 microns. The chemical composition of all four samples are inhomogeneous and was found by linear EDS (Energy-dispersive X-ray spectroscopy) analysis. However, the average values of the content of elements are quite close to each other. The special significance of the work is emphasized by the cross section of the shells of microspheres, which are similar to the crystallization structure of molten metal. They play an important role as materials in the construction industry. According to the results of SEM-EPMA studies, it is recommended to apply ash and slag materials, containing aluminosilicate microspheres, obtained after flotation enrichment, in construction industry.
Keywords: Ash and slag waste, aluminosilicate microspheres, scanning electron microscope, microstructure, microanalysis.
Cite this article as: Bulenbayev MZh, Ibraeva GM, Altaibayev BT, Aibasov EZh. Study of aluminosilicate microspheres using SEM – EPMA. Kompleksnoe Ispol’zovanie Mineral’nogo Syr’a = Complex Use of Mineral Resources. 2022;322(3):66-73. https://doi.org/10.31643/2022/6445.30
Title: Accounting for creep of the rock mass around the sides of the quarry
Abstract: Since open-pit mining operations on the elements of development systems have areas with dynamically changing stresses and deformations of the rock mass, the stress-strain state of the array around the sides of the quarry is considered. The objective of the research is to determine the parameters of the stress-strain state of the array that affect the stability of the sides of the quarry. Studies are conducted to determine the parameters of the stress-strain rock mass around the sides of the quarry. A mathematical model has been developed for determining the factors affecting the stability of the sides of the quarry. A multifactorial mathematical model of the stability of the sides of the quarry from mining geological and mining technical factors was obtained, taking into account the creep of the rock mass of the sides of the quarry. According to the formula obtained for the multidimensional model, it is possible to find a set of factors affecting the stability of the sides of the quarry. The obtained dependence makes it possible to determine the desired value from the known values of the factors.
Keywords: massif, rocks, side, ledge, berm, slope, quarry, stress-strain state, deformation, stress, stability, creep, mathematical model, strength conditions.
Cite this article as: Tutanov SK, Tutanova MS. Accounting for creep of the rock mass around the sides of the quarry. Kompleksnoe Ispol’zovanie Mineral’nogo Syr’a = Complex Use of Mineral Resources. 2022;322(3):74-78. https://doi.org/10.31643/2022/6445.31
Title: Methods of silica removal from pyrometallurgical processing wastes of ilmenite concentrate
Abstract: This article presents a study on the processing of waste dust from electrical smelting of ilmenite concentrates with the removal of silica from them by alkaline and fluoride methods. The study of the smelting dust leaching by caustic soda solutions included investigation of the effect of sodium hydroxide concentration, process time, temperature, S:L ratio. The optimum conditions of concentrate electric smelting dust leaching - temperature 80-90 °С, duration 90-120 minutes, S:L ratio = 1:5, sodium hydroxide solution concentration 110-115 g/dm3 were determined. The optimum conditions for fluorination of electric melting dust were determined, at which the sublimation degree of silicon fluoride was 84.2 %. Studies have been performed to decomposite obtained silicon-containing sublime in the presence of ammonia agent. The optimum pyrolysis modes that provide the separation of fluoride and silicon oxide - temperature 530-560 °C and duration of 60-80 min have been determined based on the results of thermal analysis and studies on the process duration effect. The silicon oxide content in the obtained product was 96.3%.
Keywords: fine dusts, leaching, sodium hydroxide, silicon dioxide, fluorination.
Cite this article as: Ultarakova AA, Karshyga ZB, Lokhova NG, Naimanbaev MA, Yessengaziyev AM, Burns P. Methods of silica removal from pyrometallurgical processing wastes of ilmenite concentrate. Kompleksnoe Ispol’zovanie Mineral’nogo Syr’a = Complex Use of Mineral Resources 2022;322(3):79-88. https://doi.org/10.31643/2022/6445.32
Title: Investigation of dielectric and strength properties of organoplastics. Review
Abstract: Currently, the production and use of military UAVs in the direction of robotic complexes is actively developing. The purpose and use of military UAVs differ from civilian ones, based on two functions: reconnaissance purpose and a carrier of a warhead. The specifics of military UAVs are their invisibility to enemy radars and ensuring stable transmission of information from the command post. For these purposes, first of all, the UAV material must have the properties of radio transparency. For the production of UAV hulls, power elements, high-strength PCM are needed, which include organoplastics, carbon fiber, fiber glass. The choice of materials for parts of components and assemblies of aviation equipment depends on their operating conditions: operating loads, material properties. Organoplastics (OP) fully meets these requirements among polymer composite materials (PCM). OP have high strength properties along with low dielectric losses (radio transparency) compared to other fiber composites. This paper presents an overview of studies of dielectric and strength properties, as well as ways to improve the mechanical properties of organoplastics. The analysis of the work has shown that for radiotransparent organoplasty, the optimal frequency range of permittivity is 1kHz-12 GHz. The ultimate strength of organoplastics varies in the range from 320 MPa to 1 GPa. The possibilities of increasing the strength of aramid fibers and ways of modifying organoplastics epoxy resins are considered.
Keywords: unmanned aerial vehicles, fairing, organoplastics, permittivity, tensile strength.
Cite this article as: Yermakhanova AM, Sanin A.F., Meiirbekov MN, Baiserikov BM. Investigation of dielectric and strength properties of composite materials. Review. Kompleksnoe Ispol'zovanie Mineral'nogo Syr'a = Complex Use of Mineral Resources. 2022;322(3):89-102. https://doi.org/10.31643/2022/6445.33