Azerbaijan Journal of Chemical News最新文献

{"title":"DETERMINATION OF ECOTOXIC SUBSTANCES IN WASTEWATER FORMED IN THE PURIFICATION PROCESS OF PETROLEUM OILS WITH HYDROGEN BY SPECTRAL METHODS","authors":"","doi":"10.32010/ajcn04042022","DOIUrl":"https://doi.org/10.32010/ajcn04042022","url":null,"abstract":"The article analyzes the determination of the amount of dissolved ecotoxicants in the sample taken from the industrial wastewater obtained during the process of hydrogen treatment of petroleum oils. During the hydrogenation process, different types of wastes are formed, depending on the nature of each compound contained in petroleum distillates. Every gas, liquid, solid waste formed during the process of hydrogen purification of petroleum distillates by the oil refining industry has a negative impact on the environment in various ways. One of the main directions of our scientific research is the ecological assessment of the environmental impact of wastewater formed in the process of hydrogen treatment of petroleum distillates.Based on the results obtained, the environmental impact of the wastewater was assessed. The amount of volatile ecotoxicants in the wastewater sample was determined by spectral methods and is shown in the table. We used gas chromatography-mass spectrometry method for the polycyclic aromatic hydrocarbons; optical emission spectrometry method for metals; spectrometry method for phenols, dyes and fluorine; nephelometry method for turbidity; the gravimetry method for total suspended particles. Based on the results obtained, it is possible to assess the environmental impact of wastewater generated during the technological process at the hydrogen treatment plant. \u0000Keywords: petroleum distillates, hydrogen purification, spectral method, ecotoxicants, effluents.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128015201","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":"RESULTS OF EXPERIMENTAL-INDUSTRIAL TESTS OF NANODEMULSIFIER \"IKHLAS-1\" ON THE OBJECTS JSC \"OZENMUNAIGAZ\" RK","authors":"","doi":"10.32010/ajcn04042022-23","DOIUrl":"https://doi.org/10.32010/ajcn04042022-23","url":null,"abstract":"The article presents comparative results of experimental-industrial tests (EIT) of the nanodemulsifier \"IKHLAS-1\" at the facilities of JSC \"Ozenmunaigas\" of the Republic of Kazakhstan. As a result of local EIT, for the first time, cost-effective nanoecotechnologies were proposed using the “IKHLAS-1” nanodemulsifier with a polynanostructure to improve water preparation at the PWDU-1 (preliminary water discharge unit), as well as for the processing of historical sediments at the OPPSh (Oil Preparation and Pumping Shop) of “Uzen” oil field central production facility. The quality of commersial oil in all EIT carried out was significantly better compared to the base demulsifier \"Randem-2201\".\u0000Keywords: nanodemulsifier \"IKHLAS-1\" with polynanostructure, \"Uzen\" oil field, utilization of hard to destroy water-oil emulsions and suspensions, oilfield nanoecotechnologies, primary preparation of oil.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115058235","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":"SYNTHESIS AND STUDY OF MIXED PROPYLENE GLYCOL DIESTERS OF SYNTHETIC PETROLEUM- AND FATTY ACIDS","authors":"N.F. Sadiyeva N.F. Sadiyeva, S.A. Iskenderova S.A. Iskenderova, Y.P. Cherepnova Y.P. Cherepnova, L.M. Afandiyeva L.M. Afandiyeva, S.G. Aliyeva S.G. Aliyeva","doi":"10.32010/ajcn04022022-4","DOIUrl":"https://doi.org/10.32010/ajcn04022022-4","url":null,"abstract":"The article presents a one-stage method for the synthesis of mixed diesters based on propylene glycol, synthetic petroleum- and aliphatic fatty acids (C6-C8) using a ZnO catalyst under optimal conditions - temperature -110-120°C, amount of catalyst - 1.3% wt. (by acid), molar ratio of components - acid:alcohol - 2:1.3. The properties of the synthesized mixed diesters were studied and their parameters were determined by analytical and spectral methods. In order to determine the plasticizing properties of the mixed diesters, compositions were prepared under laboratory conditions with the addition 100 m.p. of polyvinyl chloride (PVC) for 30-70 m.p. of synthesized diesters and compared them with an industrial plasticizer - dioctyl phthalate. Also, these diesters have been studied as antioxidants that improve the thermal-oxidative stability of diesel fuel. An analysis of the research results shows that the synthesized mixed diesters can be proposed as effective plasticizers for PVC and new antioxidants for diesel fuels.\u0000Keywords: propylene glycol, synthetic petroleum acids, mixed diesters, diesel fuel, antioxidant, polyvinyl chloride, plasticizer","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121482561","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":"n-HEXANE HYDROISOMERIZATION ON INDUSTRIAL NICKEL-CONTAINING CATALYSTS","authors":"","doi":"10.32010/ajcn04022022-12","DOIUrl":"https://doi.org/10.32010/ajcn04022022-12","url":null,"abstract":"In this work, we studied the process of hydroisomerization of n-hexane on various industrial nickel-containing catalysts. Ni/diatomaceous earth and NiCr2O3, which were not previously used in the isomerization process, but were used in various industrial processes, were used as catalysts in this process. For comparative purposes, the studies varied the hydrogen to feed ratio to varying degrees and calculated the conversion and isomer yield on both catalysts, which are key process indicators. On the basis of the studies performed, the optimal mode of the n-hexane hydroisomerization process on the studied catalysts was selected.\u0000Keywords: hydroisomerization, n-hexane, nickel-containing catalysts, yield of isomers, conversion","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123859437","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":"SYNTHESIS AND PROPERTIES OF RUTHENIUM CLUSTER COMPLEXES","authors":"","doi":"10.32010/ajcn004022022-17","DOIUrl":"https://doi.org/10.32010/ajcn004022022-17","url":null,"abstract":"Methods for the synthesis of ruthenium cluster complexes based on carbonyl and amine-containing organic bifunctional ligands have been developed. The structure of the obtained combinations of clusters were determined on the basis of IR spectroscopy data, thermogravimetry, and elemental analysis. Samples of ligands I and II were obtained by condensation of carboxylic acid chlorides of cyclopentane and cyclohexane with ethylene followed by replacement of the chlorine atom by amine groups. To obtain cluster complexes of ruthenium with the synthesized ligands the ruthenium trichloride salt (RuCl3) was dissolved in water, and the calculated amount of sodium borohydride was added in portions to the resulting solution under vigorous stirring in nitrogen atmosphere. Rapidly emerging black-dispersed nanoparticles of metallic ruthenium did not precipitate. When organic ligands I and II are added, the corresponding cluster compounds III and IV are formed, which gradually over 45 min. precipitated from an aqueous solution. The resulting dark-brown precipitates were washed with distilled water and dried in a nitrogen atmosphere at a temperature of 35-400C. The melting temperatures of the synthesized compounds were determined, the components for cluster III - 2060С and cluster IV - 2220С (with decomposition). The IR spectra of cluster compounds show intense absorption bands characterizing the presence of both the ketone carbonyl group and the amine fragment. The absorption bands of ketone groups in cluster compounds are shifted towards higher frequencies compared to the initial ligands. A similar picture is also observed when comparing the IR vibrations of CN bonds in the initial ligands and the corresponding cluster compounds. The results of elemental analysis confirm the structures of cluster compounds and are in complete agreement with the concept that cluster compounds are formed upon the reduction of ruthenium salts with metal hydrides in an aqueous solution. Apparently, in this case, the most stable ruthenium clusters with tetrahedral structure are formed.. Thermogravimetric analysis made it possible to establish the presence of a peak at a temperature of 3180C with a mass number of 744.8 , corresponding to a cluster combination of four ruthenium atoms. At each stage of decomposition, the experimental mass losses are in good agreement with the calculated values. \u0000 Keywords: synthesis, ruthenium, cluster complexes, amine and caryonyl containing ligands, bifunctional ligands, cyclopentyl amino ketone, cyclohexyl amino ketone.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130384911","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":"DEHYDROALKYLATION OF BENZENE WITH PROPANE ON MECHANICAL \u0000MIXTURES OF CATALYSTS","authors":"F.A. Babayeva F.A. Babayeva","doi":"10.32010/ajcn05012022-42","DOIUrl":"https://doi.org/10.32010/ajcn05012022-42","url":null,"abstract":"The conversion of C6H6 : C3H8 mixtures on mixed catalysts (MMC) composed of the metal oxide catalysts M,ReOx/Al2O3 (Pt or Ni -0.5 wt.%, Re-1.0 wt.%) and zeolites Y, МOR, and ZSM-5 in the H form was studied. The products of benzene dehydroalkylation by propane and propane dehydrogenation products are formed at 200–400°C. It has been shown that C3H8 is activated on the metal oxide catalysts and C6H6 interacts with the zeolites yielding the C6H7+ intermediate, which acts as an agent of proton transfer from a zeolite to a metal catalyst, and another intermediate C9H13+ . Cumene, alkylbenzenes, and propene are formed as a result of the conversion . Acomparison of the results of the conversion of these mixtures on the composite catalysts with different zeolites shows that the formation of cumene and propene is thermally controlled and the formation of the other products is kinetically controlled. It has been concluded that the coupling of the redox properties of the metal oxide catalysts with the acid–base properties of the zeolite catalysts facilitates the low–temperature transformations of the C6H6 : C3H8 mixtures.\u0000Keywords: dehydroalkylation, dehydrogenation, benzene, propane, mechanical mixture of catalysts, zeolite isopropylbenzene, propylene","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132577810","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":"SYNTHESIS OF COMPLEXES OF DIAZACROWN ETHERS AND TRANSITION METALS AND INVESTEGATION OF THEIR BIOLOGICAL ACTIVITY","authors":"L.Z.Vazirova L.Z.Vazirova","doi":"10.32010/ajcn03032022-73","DOIUrl":"https://doi.org/10.32010/ajcn03032022-73","url":null,"abstract":"vazirova.leyla@gmail.com\u0000\u0000The synthesis of diazacrown ethers was carried out using efficient methods. New dibenzoazacrown ethers with functionally substituted hydroxyl and amino groups in the macrocyclic (MC) ring have been synthesized. The structure of the synthesized crown compounds - determined by IR mass NMR, -spectroscopy. Methods for the preparation of transition metal complexes with organic functional ligands based on diazacrown ethers having four, five, and six coordinating atoms in the rings. The synthesized new diazacrown ethers, due to hydroxyl and amino groups, increase the degree of intermolecular interactions and transfer from a two-dimensional structure to a three-dimensional one, which has an increased their biological activity. \u0000Keywords: Crown ethers, transition metals, biological activity,complex.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128444110","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":"X-RAY DIFFRACTION STUDY OF BINARY ZINC-OXIDE CATALYSTS","authors":"T.Ch.Taghiyeva T.Ch.Taghiyeva","doi":"10.32010/ajcn5012022-60","DOIUrl":"https://doi.org/10.32010/ajcn5012022-60","url":null,"abstract":"The phase composition of binary zinc-containing catalysts was studied by X-ray diffraction. It was found that the formation of two phases of the initial oxides is observed in all the studied catalytic systems. So, samples of the Zr-Zn-O catalytic system consist of phases of zirconium and zinc oxides, samples of the Ce-Zn-O catalytic system consist of phases of cerium and zinc oxides, while samples of the Mg-Zn-O catalytic system consist of phases of magnesium and zinc oxides. It has been established that the crystallinity of binary zinc-containing catalysts varies in the range from 70% to 89%.\u0000Keywords: X-ray phase analysis, binary catalysts, zinc oxide, cerium oxide, zirconium oxide, magnesium oxide","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130951656","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":"RESEARCH OF WATER ABSORPTION OF GEOCONCRETES ON BASIS OF WASTE OF IRON ORE ENRICHMENT AND BOTTOM ASH","authors":"Y.N.Gahramanli Y.N.Gahramanli, M.I.Aliyeva M.I.Aliyeva, M.R.Mikailova M.R.Mikailova, G.Sh.Adgozalova G.Sh.Adgozalova","doi":"10.32010/ajcn05012022-21","DOIUrl":"https://doi.org/10.32010/ajcn05012022-21","url":null,"abstract":"Specimens of geopolymeric concrete on basis of waste of iron ore enrichment of Dashkesan’s deposit and bottom ash of combustion of domestic waste were obtained. Herewith ratio of waste mixture to binder made up 80:20. At obtaining of geoconcrete specimens the concentration of bottom ash in waste mixture was variated in limits of 10-50%wt. Normality of water solution of alkali activator was variated from 1N up to 8N. Maximal values of water absorption of geoconcrete specimens containing 10, 20, 30, 40 and 50%wt of bottom ash correspondingly made up 9,9, 12,3, 11,9, 12,8 and 16%.\u0000Keywords: geopolymeric concrete, enrichment waste, iron ore, bottom ash, water absorption.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"2160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130052625","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":"HYDROGENATION OF CARBON DIOXIDE ON SIRAL ALUMINOSILICATES MODIFIED WITH COBALT AND PALLADIUM","authors":"Sh.F.Tagiyeva Sh.F.Tagiyeva","doi":"10.32010/ajcn05012022-81","DOIUrl":"https://doi.org/10.32010/ajcn05012022-81","url":null,"abstract":"The reaction of hydrogenation of CO2 in flow mode at atmospheric pressure on Siral aluminosilicates with 1, 10, and 40 wt.% SiO2 and containing Co and Co-Pd has been studied. The synthesized catalysts were characterized by XRD and EPR spectroscopy. It has been established that on catalysts containing only cobalt, at a reaction temperature of ≤ 300oC, practically only methane is formed, and at a reaction temperature of T ≥ 300oC, methane and no more than 1% CO are formed. It is shown that with an increase in the SiO2/Al2O3 ratio, a decrease in the methane yield is observed. The introduction of palladium into the composition of the Co/Siral catalyst stimulates the formation of methanol, the yield of which increases with an increase in the reaction temperature and reaches its maximum value at a reaction temperature of 500°C for the Co,Pd/Siral-10 catalyst. The mechanism of the reaction of CO2 hydrogenation to methanol and the role of palladium in this reaction are discussed.\u0000Keywords: carbon dioxide, hydrogenation, methane, methanol, Siral, Pd, Co.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124788164","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}