Eurasian Chemico-Technological Journal最新文献_第3页

Synthesis, Structure and Antiradical Activity of Functionally Substituted Hydrazides of Isonicotinic Acid 功能取代异烟酸肼的合成、结构及抗自由基活性

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Eurasian Chemico-Technological Journal Pub Date : 2023-07-15 DOI: 10.18321/ectj1502

O. Nurkenov, S. Fazylov, Z. Shulgau, B.S. Аbdrasilov, A. Khlebnikov, T. Seilkhanov, S. Kabieva, G. Karipova

引用次数: 0

Coumarins of genus Ferula L. (Apiaceae Lindl.)

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Eurasian Chemico-Technological Journal Pub Date : 2023-03-20 DOI: 10.18321/ectj1494

T. Khosnutdinova, N. Gemejiyeva, Zhanat Karzhaubekova, N. Sultanova

{"title":"Coumarins of genus Ferula L. (Apiaceae Lindl.)","authors":"T. Khosnutdinova, N. Gemejiyeva, Zhanat Karzhaubekova, N. Sultanova","doi":"10.18321/ectj1494","DOIUrl":"https://doi.org/10.18321/ectj1494","url":null,"abstract":"The biologically active coumarins from Ferula L. species of the family Apiaceae Lindl. for the period 1970 to 2022 have been reviewed. The phytochemical investigation of different parts of Ferula L., including gum resin, leaves, fruits, seeds, roots, rhizomes, and resins led to the separation of different types of coumarins. Nearly 185 coumarins were isolated from 35 species of Ferula L. growing in different countries. Coumarins are represented mainly by umbelliferone (7-O-hydroxycoumarin) derivatives substituted in the C-7 position of aglycone, furanocoumarins and metabolites have terpene fragments, esters and glycosides. Umbelliferon is found as a taxon for the genus Ferula L. Some «unusual» metabolites have a furan fragment attached to the pyrone ring. Coumarins are of the psoralen type, containing a furan ring in the C-6 and C-7 positions of the primary skeleton. The rare coumarins with terpene fragments (hemiterpene, monoterpen, sesquiterpene) were reported. The biological activities of some extracts and individual metabolites such as antiinflammatory, cytotoxicity, antibacterial, antileishmanial, antiviral, antigenotoxic, antitumor, anticoagulant, antioxidant, antimycobacterial, inhibition a-glucosidase, antileishmanial were found.","PeriodicalId":11795,"journal":{"name":"Eurasian Chemico-Technological Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42004769","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}

引用次数: 0

Propulsion Systems, Propellants, Green Propulsion Subsystems and their Applications: A Review 推进系统，推进剂，绿色推进子系统及其应用综述

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Eurasian Chemico-Technological Journal Pub Date : 2023-03-20 DOI: 10.18321/ectj1491

I. Remissa, H. Jabri, Y. Hairch, K. Toshtay, M. Atamanov, S. Azat, R. Amrousse

引用次数: 1

Effect of Lanthanum Oxide on the Activity Ni-Co/Diatomite Catalysts in Dry Reforming of Methane 氧化镧对Ni-Co/硅藻土甲烷干重整催化剂活性的影响

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Eurasian Chemico-Technological Journal Pub Date : 2023-03-20 DOI: 10.18321/ectj1492

G. Yergaziyeva, E. Kutelia, K. Dossumov, D. Gventsadze, N. Jalabadze, T. Dzigrashvili, L. Nadaraia, O. Tsurtsumia, M. Anissova, M. Mambetova, B. Eristavi, N. Khudaibergenov

{"title":"Effect of Lanthanum Oxide on the Activity Ni-Co/Diatomite Catalysts in Dry Reforming of Methane","authors":"G. Yergaziyeva, E. Kutelia, K. Dossumov, D. Gventsadze, N. Jalabadze, T. Dzigrashvili, L. Nadaraia, O. Tsurtsumia, M. Anissova, M. Mambetova, B. Eristavi, N. Khudaibergenov","doi":"10.18321/ectj1492","DOIUrl":"https://doi.org/10.18321/ectj1492","url":null,"abstract":"The effect of modifying additive (La2О3) on the activity of Ni-Co oxides was studied for the dry reforming of methane (DRM). The catalysts were prepared by impregnation of the granulated diatomite (D) and characterized by SEM, EDX, H2-TPR, XRD, and AES. It is shown that the addition of 1.5 wt.% La2O3 into the Ni-Co/D composition leads to an increase in the activity of the catalyst, providing a methane conversion that is close under thermodynamic equilibrium conditions in the temperature range of 700‒850 °С. The highest activity is achieved at T = 850 °C, the conversion of methane is 96%, and carbon dioxide is 92%. The addition of lanthanum oxide to the Ni-Co/D composition led to an increase in catalyst stability; after testing in the DRM reaction for 360 min, the deactivation coefficient for methane was 3.4%, and for carbon dioxide 2.5%. While significant deactivation is observed for Ni-Co/D, the deactivation coefficient for methane is 19%, and for carbon dioxide 36%. Many characterization results (SEM, H2-TPR, and XRD) confirm that Ni-Co-La/D has abundant surface oxygen and the presence of spinel structures that contribute to the reactivity of CH4 and CO2, which positively affect its activity. \u0000 ","PeriodicalId":11795,"journal":{"name":"Eurasian Chemico-Technological Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47182589","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}

引用次数: 0

Synthesis of Amidophosphates Based on 1-Ethynyl-1-Aminocyclohexane Upon Microwave Activation and their Biological Activity 1-乙基-1-氨基环己烷微波活化合成偕胺磷酸盐及其生物活性研究

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Eurasian Chemico-Technological Journal Pub Date : 2023-03-20 DOI: 10.18321/ectj1495

B.J. Dzhiembaev, A. B. Kuandykova, N. Akylbekov, A. Dobrynin, A. Burilov

{"title":"Synthesis of Amidophosphates Based on 1-Ethynyl-1-Aminocyclohexane Upon Microwave Activation and their Biological Activity","authors":"B.J. Dzhiembaev, A. B. Kuandykova, N. Akylbekov, A. Dobrynin, A. Burilov","doi":"10.18321/ectj1495","DOIUrl":"https://doi.org/10.18321/ectj1495","url":null,"abstract":"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.","PeriodicalId":11795,"journal":{"name":"Eurasian Chemico-Technological Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46713805","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}

引用次数: 0

Surface Modifications of CuO Doped Carbonaceous Nanosorbents and their CO2 Sorption Properties CuO掺杂碳纳米吸附剂的表面改性及其对CO2的吸附性能

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Eurasian Chemico-Technological Journal Pub Date : 2023-03-20 DOI: 10.18321/ectj1493

Y. Ilyin, K. Kudaibergenov, S. Sharipkhanov, Z. Mansurov, A.А. Zhaulybayev, M. Atamanov

{"title":"Surface Modifications of CuO Doped Carbonaceous Nanosorbents and their CO2 Sorption Properties","authors":"Y. Ilyin, K. Kudaibergenov, S. Sharipkhanov, Z. Mansurov, A.А. Zhaulybayev, M. Atamanov","doi":"10.18321/ectj1493","DOIUrl":"https://doi.org/10.18321/ectj1493","url":null,"abstract":"In this study, carbonized apricot stones and rice husk were utilized as feedstock for the synthesis of CuO-loaded carbonized sorbents for the removal of carbon dioxide (CO2) from gas mixtures. The specific surface area of carbonized sorbents increased with increasing carbonization temperature, resulting in a porous structure with enhanced sorption capacity. The presence of pores and the development of porosity in the sorbents were confirmed by SEM images. CuO nanoparticles were well-dispersed on the surface of carbonized sorbents, and the particle sizes were between 60‒100 nm. Chemical interactions between acidic carbon dioxide and basic copper oxide led to improved adsorption properties. The sorption characteristics of the carbonized sorbents were studied under dynamic conditions, and the results showed that CuO-loaded carbonized apricot stones and rice husk had the maximum sorption capacity for CO2, with efficiencies of 98% and 91%, respectively. These findings indicate that carbonized apricot stones and rice husk can be utilized as low-cost and eco-friendly feedstock for the production of efficient CO2 sorbents.","PeriodicalId":11795,"journal":{"name":"Eurasian Chemico-Technological Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41818022","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}

引用次数: 1

Encapsulation of Insulin in Biodegradable Polymers 胰岛素在可生物降解聚合物中的包封

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Eurasian Chemico-Technological Journal Pub Date : 2022-12-28 DOI: 10.18321/ectj1479

Gulzhan Yerlan, B. Tyussyupova, S. Tazhibayeva, K. Musabekov, N. G. Balabushevich, A. Kokanbayev

引用次数: 0

New Approaches to Chemical Technologies of Plant Materials for Aromatherapy 芳香疗法植物材料化学技术新途径

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Eurasian Chemico-Technological Journal Pub Date : 2022-12-12 DOI: 10.18321/ectj1477

S. Kabdushev, L. Agibayeva, K. Kadyrzhan, A. Bakirov, G. Seitimova, A. T. Kolushpayeva, A. Mun

{"title":"New Approaches to Chemical Technologies of Plant Materials for Aromatherapy","authors":"S. Kabdushev, L. Agibayeva, K. Kadyrzhan, A. Bakirov, G. Seitimova, A. T. Kolushpayeva, A. Mun","doi":"10.18321/ectj1477","DOIUrl":"https://doi.org/10.18321/ectj1477","url":null,"abstract":" A new approach to the production of commercial products used in aromatherapy and household aromatizing agents based on induction heating of plant raw materials and the use of hydrophilic polymer hydrogels is proposed. It is shown that obtaining highly purified essential oils is neither technologically nor economically justified from the point of view of their use in aromatherapy. The proposed approach makes it possible to obtain products for aromatherapy with minimal processing of raw materials and low production costs. The main end product is a polymer hydrogel saturated with a liquid phase formed during induction heating of a mixture of a plant component with metal inclusions. Such a product, among other things, allows the implementation of electronic aromatherapy systems and household aromatizing agents, in which the generation of aroma oils is also provided by induction heating. In the operation of such systems, the basic property of thermosensitive hydrogels is used – a shift in the hydrophobic-hydrophilic balance with temperature variations, which makes it possible to exclude parasitic evaporation of volatile components. Specific technical solutions that implement this approach are proposed.","PeriodicalId":11795,"journal":{"name":"Eurasian Chemico-Technological Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49210475","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}

引用次数: 0

Preliminary Study and Assessment of Drinking Water from Almaty, Kazakhstan 哈萨克斯坦阿拉木图市饮用水的初步研究与评价

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Eurasian Chemico-Technological Journal Pub Date : 2022-12-12 DOI: 10.18321/ectj1478

Y. Sailaukhanuly, A. Popova, T. Mansur, K. Bexeitova, S. Azat, K. Toshtay, A. Tovassarov, A. Tasmagambetova

{"title":"Preliminary Study and Assessment of Drinking Water from Almaty, Kazakhstan","authors":"Y. Sailaukhanuly, A. Popova, T. Mansur, K. Bexeitova, S. Azat, K. Toshtay, A. Tovassarov, A. Tasmagambetova","doi":"10.18321/ectj1478","DOIUrl":"https://doi.org/10.18321/ectj1478","url":null,"abstract":" Drinking water samples from eight districts of Almaty, Kazakhstan was collected and physical and chemical analysis of the samples was carried out. Quality indicators of drinking water, such as organoleptic characteristics of water (smell, taste, color, and turbidity), general characteristics (pH, total hardness, permanganate demand, and dry residue), inorganic substances (cations and anions) and contaminants (heavy metals and total petroleum hydrocarbons) were determined, except pesticide residues which will be analyzed for further analysis with a wide range of pollutants. According to all indicators obtained for all districts of Almaty, the anthropogenic impact on drinking water in Almaty districts is assessed as low, not exceeding the permissible maximum allowable concentrations (MAC) values, and drinking water in Almaty corresponds to the approved standards and rules for drinking water of Kazakhstan. Despite of the fact that studied pollutants are below their MAC values, they still pose threat to public health due to their accumulative properties. The study of drinking water in the districts of Almaty made it possible to assess the ecological state in the studied districts of Almaty, as well as to propose recommendations for improving the quality of drinking water in areas where water quality indicators are closer to their MAC values.","PeriodicalId":11795,"journal":{"name":"Eurasian Chemico-Technological Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44523105","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}

引用次数: 0

Influence of Adhesion Additives on the Grip of Bitumen to Stone Material and Water Resistance of Asphalt Concrete 粘结剂对沥青对石材的附着力及沥青混凝土抗水性的影响

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Eurasian Chemico-Technological Journal Pub Date : 2022-12-12 DOI: 10.18321/ectj1476

R. Salakhov, A.P. Kenzhegaliyeva, M. S. Abdikarimov, B. A. Mansurov, A.O. Elshibaev, A.U. Nugmanova, S. Ashimova, B.B. Teltaev, A.R. Khamidi

{"title":"Influence of Adhesion Additives on the Grip of Bitumen to Stone Material and Water Resistance of Asphalt Concrete","authors":"R. Salakhov, A.P. Kenzhegaliyeva, M. S. Abdikarimov, B. A. Mansurov, A.O. Elshibaev, A.U. Nugmanova, S. Ashimova, B.B. Teltaev, A.R. Khamidi","doi":"10.18321/ectj1476","DOIUrl":"https://doi.org/10.18321/ectj1476","url":null,"abstract":"The primary condition for obtaining high-quality asphalt concrete is good adhesion of bitumen to mineral material, which is ensured by good wetting and chemical interaction of the components. The solution to this problem is achieved by using adhesive additives with surface-active properties that enhance adsorption and chemisorption processes on the surface of the mineral material. This paper presents the results of an experimental study to determine the effect of adhesive additives on the adhesion of bitumen to stone material. For this work, bitumen of the BND 100/130 brand with adhesive additives “Wetfix Be”, Amdor-9 and AlfaDob were used. The elemental and phase compositions of the stone material of 10 quarries of the Republic of Kazakhstan were determined using X-ray fluorescence and X-ray phase analyses. The elemental composition showed the content of oxides: CaO, MgO, Fe2O3, Al2O3, and oxides: SiO2, K2O, Na2O, CO2 in minerals. Based on the results of the X-ray phase analysis, the percentage mineralogical composition of stone materials was determined and the total silicon dioxide was calculated based on the chemical formula corresponding to certain minerals.","PeriodicalId":11795,"journal":{"name":"Eurasian Chemico-Technological Journal","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41537611","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}

引用次数: 0