Litteris et Artibus
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Item The research of the cyclohexane oxidation process using methods of engineering analysis(Lviv Polytechnic Publishing House, 2016) Kovalchuk, Andriy; Zakharkiv, Oleh; Ivashchuk, Oleksandr; Reutskyy, Viktor; Lviv Polytechnic National UniversityThe expediency of analysis and generalization of the liquid-phase cyclohexane oxidation regularities by simulation methods on the CAD software complexes have been shown.Item Effectiveness of fenton reagent in oxidation process of methyl violet dye(Видавництво Львівської політехніки, 2017-12-23) Makarova, Lyubov; Pliushko, Olena; Zhyl’tsova, Svitlana; Opeida, Iosyp; Vasyl’ Stus Donetsk National University; National Academy of Sciences of UkraineDecoloration methyl violet dye by Fenton reagent was investigated spectrophotometrically. Reagents concentration, pH value, and metal ion were varied. It was shown that substrate oxidation rate depends non-linearly on dye concentration, Fen+, H2O2, and pH value. The composition of the reaction mixture providing maximum oxidation rate and MV conversion is proposed.Item Molecular modeling of the isoquinoline and hinaldyne reaction of oxidation by peroxyacids(Lviv Polytechnic Publishing House, 2015) Zvir, Ivanna; Dutka, Volodymur; Matsyuk, Natalia; Matsyuk, Mariya; Zastavska, Gаlyna; Kovalskyi, Yaroslav; Ivan Franko National University of LvivOptimal-geometric structures of molecules was calculated with semi-empirical quantum-chemical methods. The heat of formation (ΔHf), the heat of reaction (ΔHex) was found. Numerical values of ΔHf was calculated theoretically is satisfactorily coincide with the data obtained experimentally.Item Determination of the catalytic complexes structure in the cyclohexane oxidation(Lviv Polytechnic Publishing House, 2015) Ivashchuk, Oleksandr; Suprun, Oleksandr; Reutskyy, Viktor; Lviv Polytechnic National UniversityA spectral analysis of catalytic solutions based on cobalt naphthenate in cyclohexanone with additives of ethanol and glycine for the cyclohexane oxidation process was conducted.Item Single stage acrylic acid obtaining based on methanol and acetic acid(Lviv Polytechnic Publishing House, 2015) Nebesnyi, Roman; Shpyrka, Iryna; Shatan, Anastasiia-Bohdana; Lukiyanchuk, Andriy; Ivasiv, Volodymyr; Nebesna, Yuliia; Lapychak, Nazariy; Lviv Polytechnic National UniversityThe new complex oxide acid type catalysts were developed and their performance in the process of aldol condensation of acetic acid with formaldehyde to acrylic acid was studied. The optimum conditions of the process were determined. It was established that these catalysts are effective in the process of methanol to formaldehyde oxidation, and also in the process of single stage acrylic acid obtaining from acetic acid and methanol in the presence of air.Item Influence of surface-active additieves on processes of alkylaromatic catalytic oxidation(Lviv Polytechnic Publishing House, 2015) Reutskyy, Volodymyr; Hrynchuk, Yurii; Lviv Polytechnic National UniversityThe process of ethylbenzene oxidation in the presence of catalytic systems, that consists fromsalt of variable valence metal and organic additives, was explored. Suggestion about the influence mechanism of additives on the ethylbenzene oxidation process were made.