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ПОЛУЧЕНИЕ АКТИВИРОВАННОГО УГЛЯ СО-ТЕРМОЛИЗОМ РИСОВОЙ СОЛОМЫ И НЕФТЕШЛАМА
(2019-01-01)
Nurbol Orynbasaruly Appazov
;
R. A. Turmanov
;
Rakhmetulla Zhapparbergenov
;
A. T. Shuragaziyeva
;
Nurgali Akylbekov
Carrying out joint activities in order to obtain a widely used adsorbent – activated carbon. A carbonization tube in a tube furnace made of stainless steel at a temperature of 500°C, and activation of a carbonizate carried out by steam at a temperature of 800°C. The influence of the ratio of the initial components of the raw material (husk:oil sludge) on the properties of the product was studied. Husk:oil sludge is 9:1 (by weight), respectively. Indicators such as water adsorption activity, total owner volume and bulk figure were studied. The microstructure of the obtained activated carbon was studied on a scanning electron microscope. 9: 1 corresponds to activated carbon brand DAK. References [1] Kinle H., Bader Je. Aktivnye ugli i ih promyshlennoe primenenie. L.: Himija, 1984. 216 p. [2] Arezou Niksiar, Bahram Nasernejad. Activated carbon preparation from pistachio shell pyrolysis and gasification in a spouted bed reactor // Biomass and Bioenergy. 2017. Vol. 106. P. 43-50. DOI: 10.1016/j.biombioe.2017.08.017. [3] Yeru Liang, Chen Yang, Hanwu Dong, Wenqi Li, Hang Hu, Yong Xiao, Mingtao Zheng, Yingliang Liu. Facile Synthesis of Highly Porous Carbon from Rice Husk // ACS Sustainable Chem. Eng., Just Accepted Manuscript. 2017. Vol. 5, N. 8. P. 7111-7117. DOI: 10.1021/acssuschemeng.7b01315. [4] Wenli Zhang, Nan Lin, Debo Liu, Jinhui Xu, Jinxin Sha, Jian Yin, Xiaobo Tan, Huiping Yang, Haiyan Lu, Haibo Lin. Direct carbonization of rice husk to prepare porous carbon for supercapacitor applications // Energy. 2017. Vol. 128. P. 618-625. DOI: 10.1016/j.energy.2017.04.065. [5] Pred.patent RK №15933. Sposob poluchenija karbonizirovannogo sorbenta dlja izvlechenija zolota iz rastvorov / Mansurov Z.A., Mansurova R.M., Nikolaeva A.F., Vasil'ev D.G.; data opubl. 15.07.2005. Bjul. №7. [6] Patent RF №2315712 na izobretenie. Sposob poluchenija aktivirovannogo uglja iz othodov sel'skogo hozjajstva / Hoang Kim Bong, Timofeev V.S., Tjomkin O.N., Gafarov I.G., Timoshenko A.V., Artamonova T.V., Gorbacheva O.V., Kol'vah I.P., Mishulin G.M., Shhepakin M.B., Kozhura E.A., Haziev R.M., Vatolin A.K.; data opubl. 27.01.2008. [7] Patent RF №2527221 na izobretenie. Sposob poluchenija aktivnogo uglja iz rastitel'nyh othodov / Muhin V.M., Voropaeva N.L., Karpachev V.V., Harlamov S.A., Spiridonov Ju.Ja., Gur'janov V.V., Dmitrjakova E.E.; data opubl. 27.08.2014. [8] Aworn A. Preparation of CO2 activated carbon from corncob for monoethylene glycol adsorption / A. Amphol, T. Paitip, N. Woranan // Colloids and Surfaces A: Physicochem and Eng. Asp. 2009. Vol. 333. Is. 1-3. P. 19-25. [9] Chang Ch-F. Effects of Burn-off and Activation Temperature on Preparation of Activated Carbon from Corn Cob Agrowaste by CO2 and Steam / Ch-F. Chang, Ch-Y. Chang, W-T. Tsai // Journal of Colloid and Interface Science. 2000. Vol. 232, N 1. P. 45-49. [10] Hanum F., Bani O., Wirani L.I. Characterization of Activated Carbon from Rice Husk by HCl Activation and Its Application for Lead (Pb) Removal in Car Battery Wastewater // IOP Conf. Series: Materials Science and Engineering. 2017. Vol. 180, 012151. DOI: 10.1088/1757899X/180/1/012151. [11] Hanum F., Bani O., Izdiharo A.M. Characterization of Sodium Carbonate (Na2CO3) Treated Rice Husk Activated Carbon and Adsorption of Lead from Car Battery Wastewater // IOP Conf. Series: Materials Science and Engineering. 2017. Vol. 180, 012149. DOI: 10.1088/1757899X/180/1/012149. [12] Patent RF №2609802 na izobretenie. Sposob poluchenija aktivnogo uglja iz rastitel'nogo syr'ja / Klushin V.N., Thu Aung Si, Muhin V.M., Vin M'int So, Nistratov A.V., Voropaeva N.L.; data opubl. 06.02.2017. Bjul. №4. [13] Daifullah A.A.M., Girgis B.S., Gad H.M.H. A study of the factors affecting the removal of humic acid by activated carbon prepared from biomass material // Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2004. Vol. 235, N 1-3. P. 1-10. DOI: 10.1016/j.colsurfa.2003.12.020. [14] Mohamed M.M. Acid dye removal: comparison of surfactant-modified mesoporous FSM-16 with activated carbon derived from rice husk // Journal of Colloid and Interface Science. 2004. Vol. 272, N 1. P. 28-34. DOI: 10.1016/j.jcis.2003.08.071. [15] Rahman I.A. Saad B., Shaidan S., Sya Rizal E.S. Adsorption characteristics of malachite green on activated carbon derived from rice husks produced by chemical–thermal process // Bioresource Technology. 2005. Vol. 96, N 14. P. 1578-1583. DOI: 10.1016/j.biortech.2004.12.015. [16] Kennedy L.J., Vijaya J.J., Sekaran G. Effect of Two-Stage Process on the Preparation and Characterization of Porous Carbon Composite from Rice Husk by Phosphoric Acid Activation // Ind. Eng. Chem. Res. 2004. Vol. 43, N 8. P. 1832-1838. DOI: 10.1021/ie034093f. [17] Guo Y. Rockstraw D.A. Activated carbons prepared from rice hull by one-step phosphoric acid activation // Microporous and Mesoporous Materials. – 2007. Vol. 100. Is. 1-3. P. 12-19. DOI: 10.1016/j.micromeso.2006.10.006. [18] GOST 6217. Ugol' aktivnyj drevesnyj droblenyj. Tehnicheskie uslovija. M.: IPK Izdatel'stvo standartov, 2003. [19] GOST 17219. Ugli aktivnye. Metod opredelenija summarnogo ob#ema por po vode. M.: Izdatel'stvo standartov, 1988. [20] GOST 12597. Sorbenty. Metod opredelenija massovoj doli vody v aktivnyh ugljah i katalizatorah na ih osnove. M.: Izdatel'stvo standartov, 1989. [21] GOST 16190. Sorbenty. Metod opredelenija nasypnoj plotnosti. M.: Izdatel'stvo standartov, 1970.
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OBTAINING BIOCHAR FROM RICE HUSK AND STRAW
(National Academy of Sciences of the Republic of Kazakhstan, 2021-02-01)
Nurbol Orynbasaruly Appazov
;
Б.М. Базарбаев
;
T. Assylbekkyzy
;
Banu Diyarova
;
С.А. Канжар
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. The thermolysis products are characterized for iodine adsorption activity, cumulative water pore volume, and for bulk density. The porous structure of the obtained products has been studied by scanning electron microscopy. Based on the results of the research conducted, it has been found that biochars obtained from husk and straw with a thermolysis duration of 30 minutes have low iodine sorption characteristics and water pore volumes. With an increase in the duration of thermolysis, the sorption characteristics improve, the optimal for the husk is the thermolysis duration of 60 minutes at a temperature of 500°C, and for straw, the optimal thermolysis duration is 60 minutes at a temperature of 300°C. The best option is biochar obtained from rice straw at a duration of 60 minutes and a thermolysis temperature of 300°C, having an iodine adsorption activity of 54.61%, a cumulative water pore volume of 0.941 cm3/g and a bulk density of 169.29 g/dm3. The obtained biochars from rice husk and straw have been studied by scanning electron microscopy at 4300 and 5000 times magnification, and they have a developed porous structure. According to the literature, it is known that biochar can also be used as a renewable energy source. Research has been carried out to determine the calorific value of the obtained biochars. To compare the calorific value of rice husk, straw and the obtained biochars, their heating values have been determined on a calorimeter. The highest heating value has a biochar obtained from husk at a duration of 60 minutes and at a thermolysis temperature of 400°C with a value of 17.520 kJ/g, the optimal for biochar obtained from straw is a duration of 60 minutes and a thermolysis temperature of 400°C with a value of 16.451 kJ/g. The experimental data obtained make it possible to use the obtained biochar from rice straw in the future as a biofertilizer to improve the characteristics of soils, as well as to use biochar obtained from rice husk to produce renewable fuel.
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Synthesis of Amidophosphates Based on 1-Ethynyl-1-Aminocyclohexane Upon Microwave Activation and their Biological Activity
(2023-03-20)
Б. Ж. Джиембаев
;
A. B. Kuandykova
;
Nurgali Akylbekov
;
Alexey B. Dobrynin
;
Alexander Romanovich Burilov
The researches for developing the methods for synthesizing new functionally substituted derivatives of alicyclic dialkylamidophosphates, establishing their structure, and searching for promising biologically active compounds in their series, are modern and relevant. The given study aimed to develop the synthesis of amidophosphates based on the example of phosphorylation of 1-ethynyl-1-aminocyclohexane with dialkyl phosphites in the presence of triethylamine in carbon tetrachloride in the Atherton-Todd reaction conditions using microwave irradiation of the reaction mixture. The reaction of 1-ethynyl-1-aminocyclohexane with dialkyl phosphites was carried out in a CCl4 excess at an equimolar ratio of reagents, triethylamine was used as an HCl acceptor. The highest yields of dialkyl- N-(1-ethynylcyclohexan-1-yl)amidophosphates were achieved by adding equimolar amounts of dialkyl phosphites to the mixture of 1-ethynyl-1-aminocyclohexane, triethylamine, and CCl4 followed by the subsequent activation of the mixture in a microwave reactor (MAS-II Plus MW) (MW 102 W, 115 °C, microwave irradiation time was 3‒5 min). The composition and structure of the obtained compounds were proved by elemental analysis, IR, 1H, 13C, 31P NMR spectroscopy, and X-ray diffraction analysis (XRD). The biological tests carried out in laboratory and field conditions allowed identifying diethyl-N-(1-ethynylcyclohexan-1-yl) amidophosphate among the synthesized compounds, which produces a high growth-regulating effect on the growth, development, and yield of agricultural crops.
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Synthesis of New Symmetrical Diamidophosphates Based on meta-Phenylenediamine under Microwave Irradiation
(Pleiades Publishing, 2023-06-01)
A. B. Kuandykova
;
Б. Ж. Джиембаев
;
Alexander Romanovich Burilov
;
Nurgali Akylbekov
;
Elena Chugunova
Abstract A new series of diphosphorylated amidophosphates was obtained as a result of the reaction of meta-phenylenediamine with dialkyl phosphites in the presence of CCl4 and triethylamine (Atherton–Todd reaction) under microwave irradiation. Structure of all the obtained amidophosphates was established on the basis of 31P, 1H, 13C NMR, IR spectroscopy and mass spectrometry methods, as well as single crystal X-ray diffraction and elemental analysis data.
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Synthesis of new symmetrical diamidophosphates based on meta-phenylenediamine under microwave irradiation
(Pleiades Publishing, 2023-06-15)
A. B. Kuandykova
;
Б. Ж. Джиембаев
;
Alexander Romanovich Burilov
;
Nurgali Akylbekov
;
Elena Chugunova
A new series of diphosphorylated amidophosphates was obtained as a result of the reaction of meta -phenylenediamine with dialkylphosphites in the presence of CCl4 and triethylamine (Atherton-Todd reaction) under microwave irradiation. Structure of all the obtained amidophosphates was established on the basis of 31P, 1H, 13C NMR, IR spectroscopy and mass spectrometry methods, as well as single crystal X-ray diffraction and elemental analysis data.
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SYNTHESIS, MOLECULAR AND CRYSTAL STRUCTURES OF TETRAETHYL 1,3-PHENYLENEBIS (PHOSPHORAMIDATE) AND TETRAPROPYL 1,3-PHENYLENEBIS (PHOSPHORAMIDATE)
(National Academy of Sciences of the Republic of Kazakhstan, 2024-03-15)
A. B. Kuandykova
;
Б. Ж. Джиембаев
;
Alexey B. Dobrynin
;
Nurgali Akylbekov
;
Nazgul Akimbayeva
работа по поддержке детей, оставшихся без родителей, детей и взрослых из социально уязвимых слоев населения, людей с ограниченными возможностями, а также обеспечению нуждающихся социальным жильем, строительству социально важных объектов, таких как детские сады, детские площадки и физкультурнооздоровительные комплексы.В копилку добрых дел Фонда «Халык» можно добавить оказание помощи детскому спорту, куда относится поддержка в развитии детского футбола и карате в нашей стране.Жизненно важную помощь Благотворительный фонд «Халык» оказал нашим соотечественникам во время недавней пандемии COVID-19.Тогда, в разгар тяжелой борьбы с коронавирусной инфекцией Фонд выделил свыше 11 миллиардов тенге на приобретение необходимого медицинского оборудования и дорогостоящих медицинских препаратов, автомобилей скорой медицинской помощи и средств защиты, адресную материальную помощь социально уязвимым слоям населения и денежные выплаты медицинским работникам.В 2023 году наряду с другими проектами, нацеленными на повышение благосостояния казахстанских граждан Фонд решил уделить особое внимание науке, поскольку она является частью общественной культуры, а уровень ее развития определяет уровень развития государства.Поддержка Фондом выпуска журналов Национальной Академии наук Республики Казахстан, которые входят в международные фонды Scopus и Wos и в которых публикуются статьи отечественных ученых, докторантов и магистрантов, а также научных сотрудников высших учебных заведений и научно-исследовательских институтов нашей страны является не менее значимым вкладом Фонда в развитие казахстанского общества.
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Influence of Powdered Lignocellulose from Alfalfa Straw and Its Carboxymethylated Derivative on the Properties of Water-Swelling Rubbers
(Multidisciplinary Digital Publishing Institute, 2026-02-01)
Аbdirakym Nakyp
;
Е. Н. Черезова
;
Yulia Karaseva
;
Nurgali Akylbekov
;
Rakhymzhan Turmanov
The present work investigates the effect of powdered lignocellulose from alfalfa straw obtained by a chemo-extrusion method, as well as its carboxymethylated derivative, on the physicomechanical properties and swelling behavior of vulcanizates based on nitrile butadiene rubber (NBR, BNKS-28 AMN grade). Carboxymethylation of lignocellulose was performed using microwave activation. The functional group composition of the modified lignocellulose was characterized by Fourier-transform infrared (FTIR) spectroscopy, which confirmed successful carboxymethylation and revealed a reduction in crystallinity. Thermogravimetric analysis (TGA) was used to determine the thermal stability of the swelling carboxymethylated fillers. The degree of crystallinity of the carboxymethylated swelling fillers was evaluated by X-ray diffraction (XRD). It was shown that the introduction of powdered lignocellulose and its carboxymethylated derivative into the rubber compounds lead to an increase in compound viscosity and prolong the optimum cure time, while having no effect on the scorch time, in a manner similar to that observed for the commercial product sodium carboxymethylcellulose (NaCMC). It has been shown that the introduction of powdered lignocellulose and its carboxymethylated derivative increases the tensile strength of the rubber and improves its resistance to the action of mineralized water compared with the samples containing NaCMC. It was also demonstrated that carboxymethylated lignocellulose exhibits enhanced sorption capacity comparable to that of NaCMC. Overall, carboxymethylation of lignocellulose derived from alfalfa straw significantly improves the stability and sorption characteristics of nitrile butadiene rubber composites. These findings indicate that carboxymethylated lignocellulose is a sustainable and effective alternative to industrial NaCMC for use as a functional filler in elastomeric materials.
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