Kompleksnoe Ispolzovanie Mineralnogo Syra最新文献

{"title":"Porosity and non-metallic inclusions in cast iron produced with a high proportion of scrap","authors":"Korotenko R.Yu, Alibekov Zh, Zh, Panichkin Alexander Vladimirovich, Korotenko Roman Yuryevich, Kshibekova Balzhan Bulatovna, Alibekov Zhassulan, Zhanuzakovich","doi":"10.31643/2022/6445.42","DOIUrl":"https://doi.org/10.31643/2022/6445.42","url":null,"abstract":"The work is devoted to the problem of an increase in the proportion of scrap metal in castings smelted and produced from wear-resistant chromium cast irons. Castings obtained with more than 60% of armor scrap and cracked during solidification and subsequent heat treatment were selected as research objects. Castings of similar mill armor after operation characterized with different wear resistance were selected to compare the characteristics of the structure and properties. The composition, structure, amount of non-metallic inclusion and porosity of samples cut from identical places of castings were studied with the help of the methods of optical and scanning microscopy, metallographic analysis, X-ray fluorescence analysis, and measurement of Vickers hardness. The characteristic localization of non-metallic inclusions of various types in the structure of cast iron samples was considered. An increase in the proportion of non-metallic inclusions in cast irons obtained using a high proportion of scrap was found, and it was shown that non-metallic oxide inclusions with a loose structure had the most negative effect. Along with porosity and primary crystals of carbide (CrFe)3Ctheydo not prevent the propagation of cracks caused by internal stresses arising during crystallization and subsequent polymorphic transformations in castings.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367299","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":"Influence of industrial waste on the structure of environmentally friendly cement clinker","authors":"N. Zhanikulov, A. Kolesnikov, B. Taimasov, B. Zhakipbayev, A. Shal","doi":"10.31643/2022/6445.44","DOIUrl":"https://doi.org/10.31643/2022/6445.44","url":null,"abstract":"The main problem of cement production is to reduce energy consumption and reduce the amount of greenhouse gases CO2 emitted into the atmosphere. The prerequisite for solving the problem is: the use of man-made waste and unconventional raw materials in the composition of the charge and the reduction of limestone content from 85% to 70-75% as a source of CO2 gas. The article presents the results of the studied technogenic waste and the suitability of non-traditional raw materials such as tefritobazalt, coal mining waste, and lead slag. The chemical and mineralogical composition of the materials and their suitability for obtaining environmentally friendly clinker have been established. The possibility of obtaining cement clinker using low-energy resource-saving technologies is shown. Clinker formation processes in the developed mixtures are completed at a temperature of 1350 °C, which, with the coal contained in the waste, will reduce the consumption of fuel injectors and reduce CO2 emissions into the atmosphere. In the developed low-energy mixtures, the specific consumption of raw materials for obtaining 1 ton of clinker is reduced to 1516-1525 kg, which is significantly lower than in traditional raw mixtures. Alite crystals are large, reaching 100-140 microns. The content of clinker minerals is C3S-57.88%, C2S-18.82%, C3A-6.46% and C4AF-11.61%. Disposal of large-tonnage waste will reduce environmental pollution and improve the environmental situation in the region.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367346","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":"Additive for improving the quality of foam concrete made on the basis of micro silica and quicklime","authors":"R. Lukpanov, D. Dyussembinov, S. Yenkebayev, A. Yenkebayeva, E. Tkach","doi":"10.31643/2022/6445.37","DOIUrl":"https://doi.org/10.31643/2022/6445.37","url":null,"abstract":"The article presents studies of the use of plasticizing additives in combination with fine aggregate (microsilica) and CaOH quicklime for the production of foam concrete. The research will determine the effect of plasticizing additives and active fillers on the properties of foam concrete during their production. The main issue in the production of foam concrete is the time of setting, as their increase leads to shrinkage of foam concrete mixture and as a consequence of the uneven structure of the material. Therefore, the use of plasticizer additives in the production of foam concrete is not recommended. Plasticizer, as a surface-active substance, increases the setting time of the cement binder. However, examining the features of micro silica in combination with caustic lime and plasticizer was found to reduce the time setting. Laboratory studies have shown that the use of these components will produce foam concrete with the projected density, with a uniformly distributed pore structure, high strength, and frost resistance. According to the results of the study, the influence of the number of additives components on the qualitative characteristics of foam concrete was determined, and the optimal composition of the components, plasticizer additives, micro silica, and caustic lime was selected.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49214659","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":"Aluminum-lithium alloys: types, properties, application, and production technologies. Overview","authors":"I. Ablakatov, B.M. Baiserikov, M. Ismailov, M.R. Nurgozhin","doi":"10.31643/2022/6445.34","DOIUrl":"https://doi.org/10.31643/2022/6445.34","url":null,"abstract":"The article provides a brief overview of the aluminum industry development in Kazakhstan and the possibility of obtaining high-strength structural aluminum-lithium alloys. The country's enterprises produce aluminum of technical purity and aluminum alloys of low and medium strength of 6060, 6063, 6463, 6082, AK5M2, ADS-12, AD-31, AD-35, which are available materials for the construction industry. In Kazakhstan, there is progressive development of mechanical engineering which requires stronger alloys of 300-400 MPa, and for special engineering (defense, aerospace, and other advanced industries) - strengths above 415 MPa. High-strength structural aluminum alloys are based on Al-Cu-Mg, Al-Zn-Mg-Cu, Al-Li systems. Among these systems, relatively new Al-Li alloys are of great interest, having a great potential for further improvement of characteristics. The Al-Li system alloys with record-high specific strengths, corrosion-resistant, and good welded joints are widely used in the aerospace industry, where they are used for the production of power elements and housings. The article provides an overview of the known aluminum-lithium alloys, as well as the main technological stages of their production.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367187","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":"Flotation studies of the middling product of lead-zinc ores with preliminary sulfidizing roasting of oxidized lead and zinc compounds","authors":"T. Chepushtanova, I. Motovilov, Y. Merkibayev, K. V. Polyakov, S. Gostu","doi":"10.31643/2022/6445.43","DOIUrl":"https://doi.org/10.31643/2022/6445.43","url":null,"abstract":"The development of combined enrichment technologies becomes more significant due to the decreasing of the processed ores quality and involvement in the processing of poor, refractory ores. The difficulty in the flotation enrichment of mixed and oxidized polymetallic ores and intermediate products lies in the effective sulfidization of the surface of oxidized minerals. The sodium sulfide reagent used in flotation does not always provide complete sulfidization of the mineral surface. On the intermediate product of lead-zinc ores related to the phase composition of mixed ores, flotation studies were carried out on the original product and after preliminary sulfidization by the pyro-metallurgical method. It was found that in the pre-sulfidizied product, the extraction of zinc increased to 17.23 %, and lead to 10.07 %, compared with the original product without pre-treatment.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367339","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":"Promising methods for hydrometallurgical processing of copper slag","authors":"D. Kurmangaliyev, S. Abdulina, S. Mamyachenkov","doi":"10.31643/2022/6445.39","DOIUrl":"https://doi.org/10.31643/2022/6445.39","url":null,"abstract":"Metals are important in many modern industries. Due to the depletion of their natural resource base, it is necessary to adapt, which means developing new and optimizing existing methods of extraction of valuable components from ore materials. Only comprehensive processing of copper metallurgical slags will solve the problem of resource recovery and the creation of low-waste technology, which has great economic, environmental, and social importance. Hydrometallurgical technologies take into account the specific conditions of the system and the physical and chemical properties of metals when developing and selecting the method of extraction. This article provides a review of the current state and prospects of development technologies used for base metal extraction by leaching with the use of inorganic acids and environmentally safe reagents, the methods are conditionally divided into two groups. The listed studies have made a significant contribution to solving the problem of processing metallurgical slags, however, none of the technologies has gone beyond the scope of laboratory and semi-industrial tests. Noted a tendency to reduce the concentrations of leaching agents by certain pre-treatment of raw material, as well as the transition to ubiquitously use \"green technologies\": such as bioleaching and organic acid leaching. Directions are suggested to solve the problem of rational use of raw materials and increase the sustainability of the future material cycle.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"36 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367246","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":"Investigation of the microstructure of the oil pipeline pipes destroyed as a result of corrosion","authors":"F.E. Suleimenova, E. Negim, R. Sharipov, E. Suleimenov","doi":"10.31643/2022/6445.41","DOIUrl":"https://doi.org/10.31643/2022/6445.41","url":null,"abstract":"It is shown that the complexity of Kazakhstan's oils requires specific ways to protect oil pipelines from damage caused by metal corrosion. Even the presence of only paraffin in oil can cause sedimentation effects in the volume of liquid (Dorn effect). And the complexity in the molecular composition of oil causes electrophoretic impacts that lead to increased corrosion rate. All this should be considered when developing corrosion protection. The physical and mathematical analysis of possible mechanisms of electrophoretic mobility of components with the participation of liquid systems was carried out. In such a system with ions content, the macroscopic object will move as a charged particle having the same charge sign as the skeleton. The triboelectric effects on the metal/organic liquids (oil, fuel oil, etc.) boundary have been analyzed to determine their influence on the corrosion of pipeline metals. There are many methods used for temperature-strength control of reinforced concrete structures globally. Their majority is associated with the significant challenges of being time-consuming, costly, and prone to errors. Therefore, this study investigated the potential applicability of the surface-strength approach of specimens using non-destructive testing methods to derive temperature-strength relationships as an alternative approach to the currently widely used methods.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367255","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":"Studying the characteristics of iodine sorption in synthetized ion-exchangers","authors":"S. Konyratbekova, A. Baikonurova, G. Usoltseva, B. Surimbayev, К.Т. Eskalina","doi":"10.31643/2022/6445.40","DOIUrl":"https://doi.org/10.31643/2022/6445.40","url":null,"abstract":"Iodine is an essential micronutrient for humans and animals due to its important role as a component of thyroid hormones. Kazakhstan is a country, most regions of which suffer from a natural deficiency of iodine. At the same time, the country has a rich resource base for obtaining iodine and its compounds. These are formation waters of oil fields under development containing 0.001–0.005% iodine. To extract iodine from natural oil-field brines, we have proposed ion-exchange materials obtained from the waste of the oil refining industry. The article presents the results of studying the characteristics of iodine sorption in the synthesized ion exchangers. The synthesis of ion exchangers was carried out by polycondensation of dihydric phenols (1,3 dioxybenzene, 1,2 dioxybenzene, 1,4 dioxybenzene), hexamethylenediamine, and formaldehyde. The following sorption characteristics of iodine by the synthesized ion exchangers were studied: the influence of the pH of a solution on iodine sorption; kinetic curves of iodine sorption; iodine sorption isotherms; mechanism of iodine sorption. It has been established that the sorption of iodine on the synthesized samples is essentially independent of the pH of a medium, and the degree of its extraction in the entire area under study is 94–100%. Studies have been carried out on the dependence of the degree of extraction and the logarithm of the iodine distribution coefficient on the duration of the process. The sorption capacity of the synthesized ion exchangers with respect to iodine was estimated depending on the structure of the ion exchanger and sorption conditions. It has been established that sorbents based on 1,4 dioxybenzene, which are distinguished by high kinetic abilities and static exchange capacity (SEC = 2283.88 mg/g), are most preferable for iodine extraction. The mechanism of sorption of iodine by synthesized ion exchangers has been determined.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367251","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":"Obtaining modified sorbents based on natural raw materials of Kazakhstan and research of their properties","authors":"Surkova T.Yu, Baltabekova Zh.A, Surkova Tatiana, Yuryevna, B. Beisembayev, Abdikerim Bekzat Erubayuly, Berkinbayeva Ainur Nurkaliyevna","doi":"10.31643/2022/6445.25","DOIUrl":"https://doi.org/10.31643/2022/6445.25","url":null,"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.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367047","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":"Increased recovery of free fine gold in the leaching process","authors":"G. Toktar, A. Koizhanova, D. Magomedov, N. Abdyldaev, A.N. Bakraeva","doi":"10.31643/2022/6445.28","DOIUrl":"https://doi.org/10.31643/2022/6445.28","url":null,"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.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367101","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}