Электронный каталог

24
A99
Azimbayeva, G. E.
    Gas Chromatographic analysis of the chemical composition of ethyl alcohol obtained from plants of the genus asteraceae. [Текст] / G. E. Azimbayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 6-13
ББК 24

Рубрики: chemistry

Кл.слова (ненормированные):
Ethyl alcohol -- plants of the genus Asteraceae -- gas chromatographic method -- chromatogram -- chemical composition
Аннотация: The article discusses the methods of obtaining and application of ethyl alcohol. The results of the analysis of the chemical composition of ethyl alcohol obtained from plants of the genus Asteraceae are presented. As a result of the study, alcohols were obtained in different concentrations. The chemical composition of ethyl alcohol was determined by gas chromatography. The impurity composition of ethyl alcohol obtained from various types of raw materials is also shown.
Держатели документа:
WKU
Доп.точки доступа:
Kamysbayeva, A.K.
Bakibaev, Abdigali

35
B15
Bagova, Z.
    Analysis and prospective utilization of technogenic slag waste from a lead plant. [Текст] / Z. Bagova, K. Zhantasov, G. Turebekova, B. Sapargaliyeva, Javier Rodrigo-Iiarri // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 22-28
ББК 35

Рубрики: chemical Technology

Кл.слова (ненормированные):
waste -- lead-zinc waste -- secondary raw materials -- non-ferrous metals -- valuable components -- waste processing -- waste disposal -- low-waste and non-waste technologies
Аннотация: The article presents the analysis and results of the study of technogenic slag waste of lead-zinc production. Slags of lead-zinc production contain a large number of toxic compounds: lead, zinc, osmium, cadmium, which are dangerous sources of environmental pollution. Due to the open storage of slags, it was found that the maximum permissible concentrations of lead were exceeded. Utilization of man-made slag waste is of great importance for reducing the negative impact on the safety of life and improving the environmental situation in the region. At the same time, slags are valuable raw materials containing compounds of non-ferrous and rare-earth metals.
Держатели документа:
WKU
Доп.точки доступа:
Zhantasov, K.
Turebekova, G.
Sapargaliyeva, B.
Rodrigo-Iiarri, Javier

35.51
T76
Тorebekov, А. К.
    Determination of rem in Uranium ores of the Shu-Sarysu uranium-ore province by inductively coupled plasma atomic emission spectrometry. [Текст] / А. К. Тorebekov, M. S. Kalmakhanova, B. K. Massalimova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 29-35
ББК 35.51

Рубрики: Технология топлива

Кл.слова (ненормированные):
uranium ore -- internal standard -- elemental analysis -- ICP-NPP
Аннотация: This article discusses the features of the determination of elements in uranium ores of the Shusarysu uranium-ore province by inductively coupled plasma atomic emission spectrometry in comparison with the ore standard of Ore Research & Exploration (Australia). A multi-stage method of sample preparation for measurement is considered. The existing and developed methods for determining the elemental composition of uranium ores are focused, as a rule, on the determination of specific elements using regulated analysis procedures. However, during routine analysis, we need to quickly and efficiently determine a larger list of elements available with one instrumental method. Various methods are used to obtain multielement analysis, among which mass spectrometry and inductively coupled plasma atomic emission analysis are most popular due to their high performance and low detection limits. The listed methods work with solutions, therefore, it is necessary to pay great attention to sample preparation and instrument calibration.
Держатели документа:
WKU
Доп.точки доступа:
Kalmakhanova, M. S.
Massalimova, B. K.

38.3
S70
Sokolova, Ya. А.
    The study of the properties and structure of cement binding composition on electrolyte acqueous solutions activated by mechanomagnetic method. [Текст] / Ya. А. Sokolova, M. V. Akulova, B. R. Isakulov, А. G. Sokolova [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 86-91
ББК 38.3

Рубрики: Строительные материалы

Кл.слова (ненормированные):
Cement compositions, -- mechanomagnetic activation -- electrolyte aqueous solutions -- differential thermo gravimetric analysis -- compressive strength -- structure formation of binders -- sodium thiosulphate -- calcium chloride
Аннотация: In the present paper, the issues of studying the influence of complex activation of grouting fluid on the structure and properties of the hardened cement paste and concrete are considered. The problem is relevant for manufacturing of building materials. In the paper, there was used the method of applying in the concrete mix composition of the elementary chemical substances undergone special physical treatment by means of mechanomagnetic activation. For more profound study of the structure formation processes in the hardened cement paste, the method of differential thermo gravimetric analysis has been used. As the research results have shown, the concrete samples on the activated electrolyte solutions are characterized by improved strength. In addition, on the base of differential thermo gravimetric analysis, it was proven that in the studied samples of the hardened cement paste on the electrolyte solutions activated by the method of mechanomagnetic treatment, the less calcium hydroxide and the more hydrated calcium silicate with amorphous and fine crystalline is formed. The obtained results for cement composites could be applied when manufacturing effective binder for concretes and mortars in the production of building materials and structures.
Держатели документа:
WKU
Доп.точки доступа:
Akulova, M.V.
Isakulov, B.R.
Sokolova, А.G.
Kul’sharov, B.B.
Isakulov, А.B.

26.3
S14
Safarov, R. Z.
    Elemental analysis of local and foreign raw materials for the production of trimanganese tetraoxide pigment. [Текст] / R. Z. Safarov, A. Zhandildenova, D. B. Kargin, B. B. Makhmutov [и др.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 92-98
ББК 26.3

Рубрики: geology

Кл.слова (ненормированные):
hausmannite -- pigment -- manganese ore -- nanopowders -- electronic microscopy -- energy-dispersive analysis
Аннотация: In the course of continuation of scientific research in the development of Kazakhstani technology for the production of trimanganese tetraoxide pigment, there have been proposed new methods of analysis which make it possible to investigate new nanostructural materials sourced from local deposits. The results obtained are of practical importance and serve as the foundation for developing new technologically advanced domestic production of a competitive product that is in demand both on the national and international markets. The available methods are not able to highlight the particularity and diversity of Kazakhstani manganese ores due to the uneven distribution of manganese minerals and host (waste) rock, the quantitative ratio of rock-forming components and their variation instability. Methods of energy-dispersive analysis of manganese ores from Kazakhstani Zhaksylyk and Bogach deposits have been put forward, electronic micrographs, spectrograms of samples, diagrams of normalized distribution of elements on the surface of samples have been obtained and a comparative analysis with raw analogue samples of some foreign manufacturers has been performed.
Держатели документа:
WKU
Доп.точки доступа:
Zhandildenova, A.
Kargin, D. B.
Makhmutov, B. B.
Kamatov, R. M.
Shomanova, Zh. K.

26.31
A28
Aimbetova, I.O.
    Mineral and petrographic analysis of clay raw materials of the turkestan region used as additives to thermal insulation materials. [Текст] / I.O. Aimbetova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 110-119
ББК 26.31

Рубрики: Минералогия

Кл.слова (ненормированные):
industrial production -- natural raw materials -- recycling industrial waste -- analysis -- thermal insulation materials
Аннотация: The article discusses the contributes to the development of a new focus on the use of various mixtures of natural raw materials and waste in the construction materials industry as a strategically important direction for solving the environmental burden and recycling industrial waste with a feasibility study that improves the state of the environment.
Держатели документа:
WKU
Доп.точки доступа:
Kurbaniyazov, S.

28
A53

    Analysis of the biological diversity of the halophilic floristic complex of the ketpen-temerlik ridge [Текст] / G. Sadyrova , Z. Inelova , D. Bayzhigitov , S. Jamilova // Доклады национальной академии наук Республики Казахстан. - 2021. - №5. - Р. 65-72
ББК 28

Рубрики: Биология

Кл.слова (ненормированные):
биоразнообразие -- галофильная флора -- хребет Кетпен -- Темерлик -- флористический комплекс
Аннотация: В данной статье приводятся результаты многолетних исследований галофильной флоры хребта Кетпен-Темерлик в пределах Казахстана и Китая. В работе представлен анализ галофильного флористического комплекса хребта Кетпен-Темерлик. Выявлено таксономическое разнообразие видового состава галофильного флористического комплекса, биоморфологический анализ жизненных форм луговых видов, а также принадлежность луговых видов к различным географическим типам ареалов. На основе проведенного анализа показан пустынный характер галофильной флоры, выявлено большое присутствие среди галофильной флоры Кетпен-Темерлик пустынных туранских, центральноазиатских, горносреднеазиатских видов, имеющих ареал, ограниченный территориями пустынного Турана и Средней Азии. Анализ флористического спектра галофильной растительности хребта показал доминирование класса Magnoliopsida (85.2%), который представлен четырьмя подклассами (Caryophyllidae, Dilleniidae, Rosidae, Asteridae) и класс Liliopsida (14.2%) представленный двумя подклассами (Commeliniidae, Liliidae). Галофильный флористический комплекс Кетпен-Темерлик представлен 115 видами, который относится к 62 родам и 19 семействам. Двудольных растений насчитывается 98 видов, однодольных всего 17 видов. Соотношение однодольных растений к двудольным растениям составляет 1:6. Численное соотношение флоры: 19:62:115. В среднем на каждый род приходится по 1,8 вида. Видовая насыщенность семейств галофильной флоры характеризуется средним показателем и составляет 13,2. Автохтонные тенденции в развитии галофильной флоры выражены слабо, о чем говорит присутствие всего двух субэндемичных видов, что составляет всего 1,74% от всей галофильной флоры. Почти полное отсутствие полиморфных родов, а также отрицательное значение показателя автономности (-1,88) свидетельствует об аллохтонной тенденции в развитии галофильной флоры исследуемой территории хребта Кетпен-Темерлик. Анализ ведущих семейств галофильной флоры хребта Кетпен-Темерлик показал, что самыми крупными семействами являются: Chenopodiaceae (30 видов, или 26,0%), Asteraceae (24; 20,8%), Poaceae (14; 12,1%), Zygophyllaceae (10; 8,6%), Fabaceae (8; 7,0%), Limoniaceae (5; 4,3%), Tamaricaceae (4; 3,4%), Brassicaceae (4; 3,4%), Plantaginaceae (3; 2,6%). Ведущими по числу родов семействами оказались: Chenopodiaceae (18; 15,6%), Asteraceae (11; 9,5%), Poaceae (8; 7,0%), Fabaceae (7;6.08%), Tamaricaceae (1; 1,74%), Cyperaceae (2; 1,74%), Zygophyllaceae (1; 1,74%). Богатыми по числу видов оказались роды: Zygophyllum (9; 7,%), Taraxacum (6; 5,2%); по 5 видов (4,3%) содержат два рода: Limonium и Suaeda. Четыре рода: Climacoptera, Lepidium, Saussurea, Leymus содержат по 4 вида каждый. По 3 вида содержат четыре рода: Tamarix, Plantago, Galatella, Puccinella. В целом в двенадцати родах содержится 53 вида (46,0%). По 2 вида содержат 12 родов, и по 1 виду имеют 38 родов. В галофильном флористическом комплексе верных видов, характерных только для этого комплекса, насчитывается 28. К основным верным видам относятся: Climacoptera brachiata, C. lanata, C. crassa, C. affinis, Petrosimonia sibirica, Girgensohnia oppositifolia, Halocnemum strobilaceum, Halostachys belangiriana, Suaeda physophora, S. acuminate, S. linifolia, S. heterophylla, Halogeton glomeratus, Frankenia hirsuta, Reaumuria soongarica, Tamarix arcetoides, T. ramosissima и другие. Анализ по жизненным формам показал, что галофильная флора характеризуется доминированием травянистых растений (86,0%), из них подавляющее большинство относятся к травянистым поликарпикам (64 вида, или 55,6%) и травянистым монокарпикам (35 вида, или 30,4%). Доля участия кустарников и полукустарников невелика − 14,0%. Кустарники представлены 6 видами (5,2%). Они содержатся в семействах гребенщиковых (4 вида), маревых (2). Полукустарников насчитывается 10 видов (9,0%), больше всего их присутствует в семействе маревых (7 видов). Из многолетников, или поликарпиков стержнекорневых насчитывается 34 вида (29,5%), корневищных - 13 видов (11,3%), короткокорневищных – 2 вида (1,7%), длиннокорневищных – 6 видов (5,2%), дерновинных - 7 видов (6,0%). Анализ состава галофильного флористического комплекса по типам ареалов показал, что наибольший процент видов приходится на пустынную и древнесредиземноморскую группы, что составляет 50,4% всей флоры. Пустынная группа представлена 34 видами, или 29,5%. Из них туранских - 12 видов, турано-иранских - 7, турано-монгольских - 9, северотуранских - 5, северотурано-центральноазиатских - 1 вид.
Держатели документа:
ЗКУ
Доп.точки доступа:
Sadyrova , G.
Inelova , Z.
Bayzhigitov , D.
Jamilova , S.

24
K17
Кairbekov, Zh. К.
    Physicochemical and antioxidant properties of humic acids of low-mineralized peloids of the Tuzkol deposit. [Текст] / Zh. К. Кairbekov, I. M. Jeldybayeva, D. Z. Аbilmazhinova, S. M. Suimbayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 48-53
ББК 24

Рубрики: chemistry

Кл.слова (ненормированные):
Low-mineralized sludge sulphide mud (peloids) -- humic -- fulvic -- hymatomelanic -- humic acids -- antioxidant activity
Аннотация: As a result of studies it was found that the peloids of the deposit of Tuzkol Lake (Republic of Kazakhstan) are high quality medium-sulfide, weakly alkaline sludge muds. It was found that peloid-derived humic acid contains 49.63 % oxygen, 22.37% carbon, 9.65 % silicon and 6.26% calcium; it also contains Na, Mg, Al, Fe and an insignificant amount of S, Cl, K, F. Electron microscopy and IR spectroscopy analysis of the molecular structure of humic substances of peloids indicated that their macromolecule consists of framework olefinic and aromatic fragments with a substantial proportion of unoxidized aliphatic groups, as well as aromatic structures containing carboxyl groups. The findings of amperometric detection of the antioxidant properties of humic acids suggest that they have antioxidant activity, which will make it possible to use them as a biologically active substance for medicines.
Держатели документа:
WKU
Доп.точки доступа:
Jeldybayeva, I.M.
Аbilmazhinova, D.Z.
Suimbayeva, S.M.

35
R24
Rasulov, S. R.
    Development of effective catalysts for processing C3-C4 Hydrocarbons. [Текст] / S. R. Rasulov, G. R. Mustafayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 87-93
ББК 35

Рубрики: chemical Technology

Кл.слова (ненормированные):
refinery gases -- 3-C4 hydrocarbons -- zeolite-containing catalyst -- modifiers -- reaction-regeneration cycles.
Аннотация: The aim of the article is to study the effect of preparation and activation methods of a modified zeolite-containing catalyst on the activity and stability of catalytic properties displayed by it during the conversion of C3-C4 hydrocarbons. During the experiment, the industrial cracking catalyst OMNIKAT, which is a zeolite in the sodium form, was used as the initial one. Zinc, gallium, and REE (rare earth elements) were sequentially applied to decationized samples of this catalyst by ion exchange, impregnation, and dry mechanical mixing, and the effect of these methods on the catalytic properties of the zeolite-containing catalyst was observed. As a result of a comparative analysis of the regularities of aromatization of C3-C4hydrocarbons, it was found that the mechanical mixing method is the most preferable, since it provides the best process performance.
Держатели документа:
WKU
Доп.точки доступа:
Mustafayeva, G.R.

35
V99
Vysotskaya, N. A.
    Some features of electrodeposition of metals from electrolytes with surfactants. [Текст] / N. A. Vysotskaya, B.N. Kabylbekova, D. D. Asylbekova, R. S. Spabekova, E. G. Lukin // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 99-103
ББК 35

Рубрики: chemical Technology

Кл.слова (ненормированные):
anticorrosive properties -- electroplating -- surfactants -- thiourea derivatives
Аннотация: For a long time, the use of various surfactants in the composition of simple electrolytes by researchers to improve the quality of metal coatings with cadmium and zinc has been an urgent task.Surfactants contribute to the grinding of the coating structure, the elimination of their porosity and the appearance of anti-corrosion properties of coatings. For example, cadmium electroplated coatings require corrosion resistance, since they are operated in tropical climates, in underground tunnels. Zinc coatings are widely used in building structures and roofing, on electrified railways and high-voltage power lines, in the mining industry and water pipes, as well as for galvanizing the body material in modern all-terrain vehicles to pass in hard-to-reach places without being subjected to corrosion.The object of our research is the process of electrodeposition of cadmium and zinc from simple acidic electrolytes with surfactants, which are thiourea derivatives of dialkyl-phosphorous acids in the current density range of 0.5-3.5 A /dm2, at room temperature. To confirm the quality of the obtained electroplating, we used a JSM-6490LV scanning electron microscope with INSA Energu energy–dispersion microanalysis and HKL-Basicc structural analysis systems with a useful magnification of 300000.
Держатели документа:
WKU
Доп.точки доступа:
Kabylbekova, B.N.
Asylbekova, D.D.
Spabekova, R.S.
Lukin, E.G.