Chemical technology and engineering. Proceedings.2019.№1最新文献

{"title":"Synthesis and antibacterial activity of novel 3-substituted 1-(2-methyl-5-nitrophenyl)-5-oxopyrrolidine derivatives","authors":"Benas Balandis, K. Anusevičius, V. Mickevičius, M. Stasevych, V. Novikov","doi":"10.23939/cte2019.01.247","DOIUrl":"https://doi.org/10.23939/cte2019.01.247","url":null,"abstract":"– The synthesis of novel azole derivatives has been accomplished during chemical transformations of the 1-(2-methyl-5-nitrophenyl)-5-oxopyrrolidine-3-carbohydrazide. The structure of the synthesized compounds was determined by NMR and IR spectroscopies. Most of the synthesized compounds were screened for their antibacterial activity against S. aureus, L. monocytogenes, E. coli, and P. aeruginosa bacteria strains. was used as a control for S. aureus, E. coli , P. aeruginosa , and L. monocytogenes .","PeriodicalId":9818,"journal":{"name":"Chemical technology and engineering. Proceedings.2019.№1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75691455","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":"Ionic liquids and supercritical carbon dioxide as solvents for NHPI-catalysed oxidation reactions","authors":"Beata Orlińska, G. Dobras, Dawid Lisicki","doi":"10.23939/cte2019.01.269","DOIUrl":"https://doi.org/10.23939/cte2019.01.269","url":null,"abstract":"– Studies on the possibility of application of ionic liquids or scCO 2 as solvents in hydrocarbons oxidation with oxygen in the presence of N-hydrophthalimide have been reported. Various alkylaromatics (cumene, ethylbenzene, mono- and diisopropylnaphthalene, mono- and diisopropylbiphenyl) and α-methylstyrene were used as starting materials.","PeriodicalId":9818,"journal":{"name":"Chemical technology and engineering. Proceedings.2019.№1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72935841","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":"Modeling of the Saturation Reactor in the Production of Pumpkin Candied Fruits","authors":"I. Huzova, V. Atamanyuk","doi":"10.23939/cte2019.01.202","DOIUrl":"https://doi.org/10.23939/cte2019.01.202","url":null,"abstract":"With the help of the universal simulation program ChemСad, an isothermal saturation reactor for sugar pumpkin particles was modeled, which operates under the constant concentration of sucrose in syrup and simultaneously increases the concentration of sucrose in candied fruits. Concentration of sucrose and the level of liquid in the reactor is not changed","PeriodicalId":9818,"journal":{"name":"Chemical technology and engineering. Proceedings.2019.№1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81989135","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":"Decreasing of the level of ecological pollution at processing of chloral-organic wastes of the production of 1,2-dychloro ethane","authors":"M. Shpariy, V. Starchevskyy","doi":"10.23939/cte2019.01.414","DOIUrl":"https://doi.org/10.23939/cte2019.01.414","url":null,"abstract":"– one of the main challenges for the Ukrainian industry is adopting of the modern environmental standards of production. One of the most promising ways of reaching of those aims is improvement of existing technological schemes by use of new catalytic systems. At the production of 1,2-dychloro ethane by direct chlorination of ethylene amount of obtained DCE is 98,2-99,4%, and as by-products are created created vinyl chloride, four chloro carbon, 3-chloro ethane, 3-chloro ethylene and others, that after rectification are transferred to the burning stage. During this stage are created products such as chloral hydrogen, that requires additional purification of the burned gases from harmful additives. During ammount this dependence","PeriodicalId":9818,"journal":{"name":"Chemical technology and engineering. Proceedings.2019.№1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80703458","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":"The sunflower seeds oil extraction: the mechanism and kinetics of the process","authors":"O. Dobrovetska, Yevgen Semenyshyn, R. Stadnyk, V. Atamanyuk, O. Ivashchuk","doi":"10.23939/cte2019.01.100","DOIUrl":"https://doi.org/10.23939/cte2019.01.100","url":null,"abstract":"The results of the research of extracting oil from sunflower seeds by the method of extraction are given. The kinetics and mechanism of the extraction process investigated. It is shown that the process of extracting sunflower seed oil is complicated and include as intra-diffusion and outer-diffusion oil transfer is similar to extraction of target components from other seeds of plant material (amaranth, rapeseed, etc.). The technique of experimental calculation of the diffusion coefficient is given and the slowest stage of the extraction process is determined, which determines the speed of the whole process. Кеуwords – extraction, plant raw materials, mechanism and kinetics of process. Introduction The extraction process of target components from plant raw materials is widely used in various industries, especially in food, pharmaceutical, chemical, petroleum, and others. The large demand to agrarian business in Ukraine is a sunflower, which, depending on the natural environment, contains up to 60% of the oil. Sunflower is a base of the agricultural crop because it contains, in addition to oils, protein and other target components which used in the pharmaceutical, chemical, perfumery, and other industries. It should be emphasized that Ukraine exports sunflower oil to over than 100 countries of the world, which requires more efficient technologies for its production for the purpose of providing with world demand. For today, there are two methods of extracting oil plant raw materials: press and extraction. The advantage of the extraction method is the high degree of oil extraction of 97-98 %, the use of simple equipment and lower energy consumption, compared with the previous method. The process of extracting the target components from plant raw materials is rather complicated. The complexity of this process is related to the cellular structure of the raw material and the presence of a poorly-permeable shell in the seeds of plants, and also in that, the target component moving within the seed to the surface of the phase contact with the solvent must overcome a number of barriers associated with the complex structure of the seed. The entire process should be considered as intra-diffusion, outer-diffusion and mixed since diffusion is the basis of these processes. For study and the establishment of a mechanism for the extraction oil process of sunflower seed is used the equation obtained by the method of integral ratios for the extraction processes of the target components from the plant raw material [1-2]. For a mathematical description of the extraction process adopted the physical model of seed in the form of a ball in the pores of which is the target component, has the form:     3 0 0 3 0 2 0 1 3 1 1 3 2 6 1                 Bi (1) For the mixed-diffusion mechanism ( ) the equation (1) is reduced to the form:","PeriodicalId":9818,"journal":{"name":"Chemical technology and engineering. Proceedings.2019.№1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83072274","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":"Changes in plant material when drying according to IR spectroscopy","authors":"N. Dmytrenko, S. Vdovenko","doi":"10.23939/cte2019.01.227","DOIUrl":"https://doi.org/10.23939/cte2019.01.227","url":null,"abstract":"Infrared spectroscopy of parenchymal tissues of apples subjected to heat drying has shown an increase in the structural hardness of carbohydrates in the removal of water hydrated by them and a gradual violation of the structure of proteins under the influence of heat and dehydration.","PeriodicalId":9818,"journal":{"name":"Chemical technology and engineering. Proceedings.2019.№1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89846369","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":"Foam layered apparatus with foam stabilization","authors":"А. Liaposhchenko, О. Khukhryanskiy, V. Moiseev, Е. Manoilo","doi":"10.23939/cte2019.01.072","DOIUrl":"https://doi.org/10.23939/cte2019.01.072","url":null,"abstract":"In work were studied the expanded models of foaming apparatuses with gratings, made of tubes of different diameters. The questions of intensification of foam devices with the use of coarsegrating lattices are considered. The possibility of deep cleaning and practically complete cleaning of gases from ammonia and fluoride compounds with their separate absorption is noted. Кеуwords – industrial gas emissions; cleaning process; hydrodynamics, mass transfer; foam apparatus; foam layer, research of purification processes; stabilization of foam layer; intensive apparatus","PeriodicalId":9818,"journal":{"name":"Chemical technology and engineering. Proceedings.2019.№1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88317171","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 the rheological properties of the gel based on sodium alginate for the local treatment of burns","authors":"B. Vons, Y. Melnyk, V. Skorokhoda, Taras Grochovuy, Marjana Сhubka","doi":"10.23939/cte2019.01.232","DOIUrl":"https://doi.org/10.23939/cte2019.01.232","url":null,"abstract":"– gels are the most common dosage form for the local treatment of burns, which are safe and easy to use. Important gel parameters are rheological characteristics, such as shear stress, dynamic viscosity, mechanical stability that can predict the behavior of the environment in technological processes, and they are important for the creation of new and improved existing drugs.","PeriodicalId":9818,"journal":{"name":"Chemical technology and engineering. Proceedings.2019.№1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91383547","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":"Microwave Vacuum Extraction for Rosehips Polyextracts","authors":"Levtrynska Yuliya, Terziev Sergey, Golinskaya Yana","doi":"10.23939/cte2019.01.191","DOIUrl":"https://doi.org/10.23939/cte2019.01.191","url":null,"abstract":"Extraction in microwave field in vacuum is investigated in paper. Decrease in pressure and influence of microwaves on intensification of extraction of waterand liposoluble components. Use of water extractant instead of two-phase solvent systems simplifies technological process for production of polyextracts. Кеуwords – extraction, microwave assisted extraction, vacum, polyextracts, carotolin, rose hips. Introduction Rosehips are valuable raw materials for the production of phytopreparations and health food products. 100 grams of ripe cinnamon rose (Rosa cinnamomea L.) hip fruits contains about 2400 mg of vitamin C and carotenoids, causing bright coloration. Today, modern technologies of rosehips processing are divided into several basic stages, which include water extraction of fruits for preparation of ascorbic acid products in the Hezenko diffusers, and extraction with organic solvents of rosehip seeds and skin to obtain carotenoid preparations (carotolin) and rose oil (vitamin E). To extract liposoluble carotenoids organic solvents are used. Technology of obtaining polystracts with the two-phase systems of extractants, proposed by Kogan G.Ya., allowed to receive a convenient medical form combining water-soluble and liposoluble components [2]. The school of microwave extraction is developing in the Odessa National Academy of Food Technologies scientific school by professor O. Burdo`s group [3]. Barodiffusion effect occurring during impact of microwave field is investigated. Intensification of the process is achieved by boiling extractant in the capillaries of plant material, which forming steam bubbles, pushing the flow of components to the extract. Combined with the soluble components, water-insoluble components can also pass into the extract, for example: carotenoids. Consequently, there is a possibility of obtaining polystracts in devices with water solvent. Research results For the experimental researches hip fruits of cinnamon rose (Rosa cinnamomea L.), produced by \"Lubnifarm\" company, with humidity of 15% are selected. Extraction carried out with water solvent (distilled water). The temperature was determined by the GM320 radiation pyrometer. The measuring range is 0 ... 330 ° C, with an error of ± 1.5 ° C. Measurement accuracy (scale interval) is 0.1 ° C. Amperage, voltage and field intensity indicators were determined using the KSP-50 measuring complex. Digital portable refractometer HI 96801, “Hanna Instruments”, were used to determine concentration of the extract. Measuring range: 0 ... 85 ° brix. Accuracy: ± 0.2 ° brix. To determine the amount of vitamin C in the extract, the Thilmans titration method were used. Extraction is carried out in a dilution installation. Main components of the extractor are: magnetron, extraction chamber, condenser, water cooler, vacuum pump. Before the experiment rarefaction is formed in the extraction chamber with a vacuum pump. During the experiment, pressure in the extraction chamber was stabilized by ","PeriodicalId":9818,"journal":{"name":"Chemical technology and engineering. Proceedings.2019.№1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90656423","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":"Mathematical modeling of the dynamics of heat and mass transfer, phase transformations and thermal decomposition at high temperature drying of biomass","authors":"Natalia Sorokova, D. Korinchuk","doi":"10.23939/cte2019.01.299","DOIUrl":"https://doi.org/10.23939/cte2019.01.299","url":null,"abstract":"A mathematical model and method for calculating heat and mass transfer, phase transformations and shrinkage during drying of colloidal porous bodies in the form of a final cylinder are presented. A mathematical simulation of high-temperature drying of willow accompanied by the destruction of hemicellulose was carried out using the data obtained on the values of the activation energy of various types of biomass.","PeriodicalId":9818,"journal":{"name":"Chemical technology and engineering. Proceedings.2019.№1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89327291","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}