Synthesis of methacrylate monomers combined condensation of propionic acid and methylpropionate in the gas phase
Електронний науковий архів Науково-технічної бібліотеки Національного університету "Львівська політехніка"
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Synthesis of methacrylate monomers combined condensation of propionic acid and methylpropionate in the gas phase
|
|
| Creator |
Lapychak, Nazariy
Ivasiv, Volodymyr Nebesnyi, Roman Shatan, Anastasia-Bogdana |
|
| Contributor |
Lviv Polytechnic National University
|
|
| Subject |
methacrylic acid
methyl methacrylate propionic acid condensation catalyst methyl propionate formaldehyde methanol |
|
| Description |
Development of active and selective catalyst for the process of obtaining methacrylate monomers from methyl propionate, propionic acid and formaldehyde is one of important stages to industrial implementation of this process. In order to solve this problem, we designed catalyst based on oxides of boron and phosphorus that were promoted by mixture oxides of zirconium and tungsten. The total yield of the target products at optimum temperature of 593 K is 52.3 % with the total selectivity of their formation at 96.4 % and the conversion of reagents of 54.2 %. We determined the effect of adding methanol on the ratio of products MMA/MAA.
|
|
| Date |
2018-05-07T08:10:10Z
2018-05-07T08:10:10Z 2016 |
|
| Type |
Conference Abstract
|
|
| Identifier |
Synthesis of methacrylate monomers combined condensation of propionic acid and methylpropionate in the gas phase / Nazariy Lapychak, Volodymyr Ivasiv, Roman Nebesnyi, Anastasia-Bogdana Shatan // Litteris et Artibus : proceedings of the 6th International youth science forum, November 24–26, 2016, Lviv, Ukraine / Lviv Polytechnic National University. – Lviv : Lviv Polytechnic Publishing House, 2016. – P. 428–429. – Bibliography: 5 titles.
http://ena.lp.edu.ua:8080/handle/ntb/41042 |
|
| Language |
en
|
|
| Relation |
[1] Yu., V., Dmytruk, V., Ivasiv, R., Nebesnyi, S. Maykova, "Optimum conditions determination of methyl methacrylate obtaining over tungsten-containing catalyst," Eastern-European Journal of Enterprise Technologies, vol. 4, Issue 6 (76), pp. 4–7, 2015. [2] Yu., V., Nebesna, V., V., Ivasiv, R., V. Nebesnyi, "Doslidzhennia tekhnolohichnykh ta kinetychnykh zakonomirnostei sumisnoho oderzhannia metakry-lativ na tsyrkoniivmisnykh katalizatorakh," Skhidno-Yevropeiskyi zhurnal peredovykh tekhnolohii, vol. 5, T. 6 (77), pp. 49–52, 2015. [3] S., L., Ding, R., Y., Wang, Y., Y., Yan, Z., Li, "Condensation of Methyl Propionate with Formaldehyde to Methyl Methacrylate over Cs-Zr-Mg/SiO2 Catalysts," Advanced Materials Research, vol. 396–398, pp. 719–723, 2012. [4] R., Nebesnyi, V., Ivasiv, Z., Pikh, V., Zhyznevskyi, Y. Dmytruk, "The kinetic of the gas phase aldol condensation reaction of propionic acid with formaldehyde on B2O3 – P2O5 – WO3/SiO2 catalyst," Chemistry & Chemical Technology, vol. 8, pp. 29–34, 2014. [5] R. Nebesnyi, "Complex oxide catalysts of acrylic acid obtaining by aldol condensation method," Eastern-European Journal of Enterprise Technologies, vol. 1, Issue 6 (73), pp. 13–16, 2015.
|
|
| Format |
428-429
application/pdf |
|
| Coverage |
UA
Lviv |
|
| Publisher |
Lviv Polytechnic Publishing House
|
|