Azerbaijan Journal of Chemical News最新文献_第4页

SEAL PRODUCTS AND THEIR ROLE IN THE PROCESS OF CONVERSION OF ISOBUTENE ON A HIGH SILICA ZEOLITE CATALYST 密封产物及其在高硅沸石催化剂上异丁烯转化过程中的作用

Azerbaijan Journal of Chemical News Pub Date : 2022-05-30 DOI: 10.32010/ajcn5012022-65

I. J. A. I. J. Ahmedova

{"title":"SEAL PRODUCTS AND THEIR ROLE IN THE PROCESS OF CONVERSION OF ISOBUTENE ON A HIGH SILICA ZEOLITE CATALYST","authors":"I. J. A. I. J. Ahmedova","doi":"10.32010/ajcn5012022-65","DOIUrl":"https://doi.org/10.32010/ajcn5012022-65","url":null,"abstract":"Conversion of isobutene on a high silica zeolite catalyst in the temperature interval (473-773 K) has been studied. The formation of liquid reaction products is observed at the temperature 473 K, whereas gaseous products form after 523K. Maximum yield of liquid products is observed at the temperature 573 K and makes up 67 %. With increase of contact time the yield of liquid reaction products shifts towards high temperatures. Formation of aromatic hydrocarbons is observed at the reaction temperature higher than 573 K. At the temperature 673 K the main mass of liquid products consists of aromatic hydrocarbons. The activity of H-form of HSZ (HHSZ) in the process of conversion of isobutene in the formation of liquid reaction products occurs only when 6-8% of seal products accumulate on its surface. By the method of ammonia adsorption on the initial and coked catalyst their acidic properties have been studied. It was shown that at the beginning of the process decrease in acidic properties of the catalyst occurs due to accumulation of seal products on it.\u0000\u0000Key words: catalyst, activity, isobutene, zeolite, seal products, temperature, heterogen, chromatography, spectroscopy.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"5 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":"125152335","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

MODIFIED CONCRETES BASED ON NON-CLINKER BINDERS 基于非熟料粘结剂的改性混凝土

Azerbaijan Journal of Chemical News Pub Date : 2022-05-30 DOI: 10.32010/ajcn05012022-48

E.F.Aslanov E.F.Aslanov, N.A. Jafarova N.A. Jafarova, T.K. Sherifova T.K. Sherifova

引用次数: 0

THE STUDY OF HEAVY METAL ION SORPTION KINETICS 重金属离子吸附动力学研究

Azerbaijan Journal of Chemical News Pub Date : 2022-05-30 DOI: 10.32010/ajcn05012022-32

E.S.Karimova E.S.Karimova

{"title":"THE STUDY OF HEAVY METAL ION SORPTION KINETICS","authors":"E.S.Karimova E.S.Karimova","doi":"10.32010/ajcn05012022-32","DOIUrl":"https://doi.org/10.32010/ajcn05012022-32","url":null,"abstract":"Phosphorus-containing polymeric sorbent based on butadiene-styrene rubber was used to remove zinc, iron and chromium ions from water. The research was carried out to study the sorption characteristics by determining the effects of various parameters, such as the pH of the solution, the initial concentration of metal ions, the sorbent mass, the phase contact time, and temperature. The regularities of the kinetics of the sorption of zinc, iron and chromium ions on the phosphorus-containing sorbent synthesized on the basis of butadiene-styrene rubber were studied. On the basis of the results it was defined that the process of sorption of zinc, iron and chromium ions on the cation exchanger proceeds by an ion-exchange mechanism. The kinetics of this process is a combination of external and internal diffusion kinetics (with some predominance of external diffusion kinetics) and is better described by the pseudo-second order reaction model. In addition, a certain contribution to the overall speed of the process is made by the interaction of the sorbed ions with the functional groups of the cation exchanger. \u0000Keywords: phosphorus-containing cation exchanger, zinc, iron, chromium, sorption, kinetics.","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":"126939162","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

THE SbBiTe2Se-SbBiTe2S PHASE DIAGRAM OF THE Sb-Bi-S-Se-Te SYSTEM Sb-Bi-S-Se-Te系统的sbbite2s相图

Azerbaijan Journal of Chemical News Pub Date : 2022-05-30 DOI: 10.32010/ajcn04012022

F.R.Aliyev F.R.Aliyev

{"title":"THE SbBiTe2Se-SbBiTe2S PHASE DIAGRAM OF THE Sb-Bi-S-Se-Te SYSTEM","authors":"F.R.Aliyev F.R.Aliyev","doi":"10.32010/ajcn04012022","DOIUrl":"https://doi.org/10.32010/ajcn04012022","url":null,"abstract":"Using powder X-ray diffraction (PXRD) and differential thermal analysis (DTA), the phase\u0000equilibria of the SbBiTe2Se – SbBiTe2S section were studied, and its T-x diagram was\u0000constructed. The system is non-quasibinary, due to both initial phases melting in the\u0000temperature range. The system is stable below the solidus, which is characterized by the formation of continuous solid solutions (α-phase) with a tetradymite-like hexagonal\u0000structure. An analysis of the structural features of tetradymite and other tetradymite-like\u0000compounds shows that the substitution of atoms by related atoms is possible in all layers of the packet. In this work sulfur atoms in the central layer can be easily replaced by selenium atoms. This tendency allows us to expect the formation of the range of compositions in the BiSb-Te-Se-S system in which substitutions are realized in cationic and anionic positions.\u0000Lattice parameters were determined from the results of powder diffraction patterns. It has been established that the crystal lattice parameters of solid solutions change linearly with composition, which complies with the Vegards rule.\u0000Keywords: SbBiTe2Se – SbBiTe2S system, phase diagram, tetradymite-like structure, solid solutions, high entropy alloys.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"28 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":"121397020","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

AMINOMETHOXY DERIVATIVES OF CYCLOHEXANOL AS BIOCORROSION INHIBITORS 环己醇氨基甲氧基衍生物作为生物缓蚀剂

Azerbaijan Journal of Chemical News Pub Date : 2022-05-30 DOI: 10.32010/ajcn05012022-54

S.V. Ismayilova S.V. Ismayilova

{"title":"AMINOMETHOXY DERIVATIVES OF CYCLOHEXANOL\u0000 AS BIOCORROSION INHIBITORS","authors":"S.V. Ismayilova S.V. Ismayilova","doi":"10.32010/ajcn05012022-54","DOIUrl":"https://doi.org/10.32010/ajcn05012022-54","url":null,"abstract":"Based on cyclohexanol, aliphatic amines (diethylamine, dipropylamine, dibutylamine, dihexylamine), and formaldehyde, new Mannich bases have been synthesized. The reaction was carried out at a temperature of 78–80°C for 4–5 h in a benzene solution at an equimolar ratio of the starting components. The yield of compounds was 63–80%. The physicochemical data of the synthesized compounds were determined. The composition and structure of the target products were confirmed by elemental analysis, IR, 1H and 13C NMR spectroscopy. Their influence on the vital activity of sulfate-reducing bacteria (SRB) of the \"Desulfovibrio desulfuricans\" type at three concentrations (25; 50; 100 mg/l) was studied. The resulting compounds showed high bactericidal properties. 1% solutions of these compounds in isopropyl alcohol at a concentration of 100 mg/l showed a 100% bactericidal effect. Given that these aminomethoxy derivatives of cyclohexanol affect bacteria at very low concentrations, they can be proposed as effective inhibitors against sulfate reducing bacteria.\u0000Keywords: cyclohexanol, aliphatic amines, Mannich bases, sulfatereducing bacteria, inhibitor-bactericides, biocorrosion.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"17 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":"124357746","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

ECOLOGİCAL FEATURES OF THE PHOTOCHEMİCAL PROPERTİES OF TİO2 NANOPARTİCLES Ecologİcal tİo2 nanopartİcles的photochemİcal propertİes特性

Azerbaijan Journal of Chemical News Pub Date : 2022-05-30 DOI: 10.32010/ajcn05012022-13

E.M.Gadirova E.M.Gadirova

引用次数: 0

SPECTROPHOTOMETRIC METHOD FOR STUDYING THE COMPLEXFORMATION OF COPPER (II) WITH BIS [3- (CHLOROPHENYLAZOPENTADIENE-2,4) ETHYLENEDIIMINE] IN THE PRESENCE OFANTIPYRINE AND 4-AMINOANTYPYRINE 在安替比林和4-氨基苯基比林存在下，铜(ii)与双[3-(氯苯二苯二烯-2,4)乙二亚胺]络合反应的分光光度法研究

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-32

F. Mamedova

引用次数: 0

CALCULATION PERCENTAGE OF ELECTRONS EMISSION FROMBERYLLIUM OXIDE SURFACE INTO WATER, IN BEO/H2O SYSTEMUNDER THE EFFECT OF IONIZING RADIATION 计算了在beo / h2o体系电离辐射作用下，氧化铍表面向水中发射电子的百分比

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-93

N. Abbasova

引用次数: 0

OXIDATION OF ETHANOL OVER BINARY COPPER-TUNGSTENOXIDE CATALYSTS 乙醇在铜钨氧化物二元催化剂上的氧化反应

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-46

K. Aghayeva

引用次数: 0

SORPTION PROPERTIES OF RUTILE PHASE TiO2 NANOPARTICLES 金红石相TiO2纳米颗粒的吸附性能

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-77

S. Hajieva, E. Gadirova

{"title":"SORPTION PROPERTIES OF RUTILE PHASE TiO2 NANOPARTICLES","authors":"S. Hajieva, E. Gadirova","doi":"10.32010/ajcn03032021-77","DOIUrl":"https://doi.org/10.32010/ajcn03032021-77","url":null,"abstract":"There are many scientific studies on phenol adsorption. Sorption of phenol in the presence of activated carbon, graphite oxide and other adsorbents is very common. This article is the first to study the sorption properties of TiO2nanoparticles with a rutile phase; TiO2 nanoparticles with a rutile phase were synthesized by the sol-gel method and used as an adsorbent. Later the process of adsorption of a 1 mgL-1 phenol solution in the presence of rutile TiO2 nanoparticles was studied. The adsorption process lasted 2 hours at a temperature of 25°C.Although the rutile TiO2 phase is a very good photocatalyst it has been shown to be a weak adsorbent. Nano crystalline TiO2 particles of the rutile phase were characterized by powder X-ray diffraction (XRD).The course of adsorption was studied on the device \"Varian Cary 50\". Based on the curves plotted on the “Varian Cary 50” it was determined that adsorption was incomplete. At the end of the process judging by the graph we can say that the amount of phenol in the solution decreased but phenol still remained which indicates incomplete adsorption. Mathematical modeling of the process has been developed using both logistic and exponential methods. \u0000Keywords: nano-TiO2, phenol, adsorption, XRD, TEM.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126642340","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