Yurov V.M., Zhangozin K.N., Zhanabergenov T.K., Kargin D.B. Abstract: The article offers an overview of our latest theoretical work on graphite and graphene. A model is proposed for determining the thickness of the surface layer of graphite, from which the strength of graphite and graphene can be calculated and the length of nanocracks in the surface…

PDF https://doi.org/10.53939/15605655/2023_3_6 Zhumakhan K., Tileuberdi Ye., Ongarbayev Ye.K. Abstract: The article discusses the many advantages of obtaining a flameless heating mixture based on magnesium powder and sodium hydroxide and the technology for obtaining sources of flameless energy resulted from an exothermic reaction between magnesium chloride and sodium hydroxide. The aim is to obtain flameless heaters…

PDF https://doi.org/10.53939/15605655/2023_2_33 Kydyrali S.Y., Gabdrashova S.E., Tulepov M.I. Abstract: The article considered the chemical characteristics, applications of titanium carbonitride and the advantages of this substance. The main methods of obtaining it, which are used in practice today, are given. The concept of self-propagating high-temperature synthesis, which was discovered in 1967 and is used in the…

PDF https://doi.org/10.53939/15605655/2023_2_25 Appazov N.O., Akylbekov N.I., Narmanova R.A., Akhatayev N.A., Zhapparbergenov R.U., Kanzhar S.A. Abstract: This paper presents the results of research on obtaining biochar from agricultural plant waste such as rice husk and straw. The selection of the optimal conditions for thermolysis, such as the duration and temperature of the process, has been conducted….

PDF https://doi.org/10.53939/15605655/2023_2_18 Kubekova Sh.N., Kapralova V.I., Raimbekova A.S. Abstract: The processing of minerals is associated with the generation of a huge amount of waste, accompanied by problems of depositing it and protecting the environment. The purpose of this study is to investigate the elemental and phase composition of raw ore materials from enrichment wastes of…

PDF https://doi.org/10.53939/15605655/2023_1_6 Azat S., Zhantikeyev U, Tauanov U.Z, Bekseitova K. ABSTRACT In this study, the synthesis of a new composite adsorbent using rice biosourced silica, silver nanoparticles and triethoxysilane as the raw materials for removal aqueous mercury ions from water is presented. The new composite material was synthesised by modification of the surface of rice…

PDF https://doi.org/10.53939/15605655/2023_1_23 Aіtеnov E., Abdrakova F.Y., Beхsultan Zh.B., Myshyrova Zh.К., Tulepov M.I. Annotation: The aim of the work is to search optimal compositions of gas-generating flame extinguisher cartridges, which should catch fire in very short periods of time, measured within 10-15 milliseconds, in this regard, studies of the flash point with a minute delay in…

PDF https://doi.org/10.53939/15605655/2023_1_16 Yeszhanova G.T., Bekseytova K.S., Rahimzhanova D.T Annotation: This article presents the results of a study on the morphological structure, which are indicators of the quality of raw materials of C. leucocladum B., the proportion of moisture in the raw materials is 5.91 ± 0.03%, the mass fraction of ash is 7.23 ± 0.01%. An…

PDF https://doi.org/10.53939/15605655/2022_3_33 Kaidar B.B., Smagulova G.T., Imash А.A., Mansurov Z.A. Abstract. The paper presents the results of studies on the synthesis of carbon fibers from polyacrylonitrile and coal furnace. Coal tar pitch was produced by the thermal treatment of coal tar. Carbon fibres from a mixture of PAN/coal pitch were obtained by electrospinning. Properties of…

PDF https://doi.org/10.53939/15605655/2022_1_28 Artykbayeva A.B., Zhapekova A.O., Rakhimova B.U.,. Tulupov M.I, Kudiyarova Zh.B., Amir Zh. Abstract: The main reasons for production of coal briquettes with air channels are based on changing the diffusion flows of the oxidizer and increasing the number of volatile. The yield of volatile substances, in turn, depends on the amount of water, which,…