TY  - JOUR
AU  - Đokić-Stojanović, Dušica R.
AU  - Todorović, Zoran B.
AU  - Troter, Dragan Z.
AU  - Todorović, Vanja
AU  - Đorđević, Biljana S.
AU  - Stamenković, Olivera S.
AU  - Veljković, Vlada B.
PY  - 2016
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/2531
AB  - A heterogeneous reaction process using propylene glycol (PEG), ethyl acetate and diethyl ether as cosolvents for the transesterification of sunflower oil with ethanol in the presence of calcium oxide as a catalyst has been developed. Significant results were obtained with propylene glycol as a cosolvent. Under determined reaction conditions (CaO concentration, based on the oil weight 1.3736 mol∙dm-3; temperature 70°C; and ethanol-to-oil molar ratio 12:1), the conversion of sunflower oil to fatty acid ethyl esters (FAEE) exceeded 98% after 120 min, which was 2 times faster than transesterification of sunflower oil without a cosolvent. After initially enhanced ethanolysis, after 180 min ethyl acetate and diethyl ether negatively influenced the reaction rate and the FAEE yield.
AB  - U radu je opisana heterogena transesterifikacija suncokretovog ulja sa etanolom i kalcijum oksidom kao katalizatorom u prisustvu polietilen glikola (PEG), etil acetata i dietil etra kao kosolvenata. Najpovoljniji rezultati su dobijeni sa polietilen glikolom kao kosolventom gde je, pod određenim reakcionim uslovima (koncentracija CaO, računata u odnosu na masu ulja 1.3736 mol∙dm-3, temperatura 70°C i molarni odnos etanol:ulje 12:1), konverzija suncokretovog ulja u etil estre masnih kiselina (FAEE) dostigla vrednost od 98% nakon 120 minuta, što je 2 puta brže od transesterifikacije suncokretovog ulja bez prisustva kosolventa. Etil acetat i dietil etar poboljšavaju reakciju etanolize na početku, ali, kako reakcija napreduje, posle 180 minuta, njihovo prisustvo u reakcionoj smeši negativno utiče na brzinu reakcije i prinos etil estrara masnih kiselina (FAEE).
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2  - Advanced Technologies
T1  - Heterogeneously catalysed ethanolysis of sunflower oil in the presence of propylene glycol, ethyl acetate and diethyl ether as cosolvents
T1  - Heterogeno katalizovana etanoliza suncokretovog ulja u prisustvu polietilen glikola, etil acetata i dietil etra kao kosolvenata
VL  - 5
IS  - 1
SP  - 66
EP  - 72
DO  - 10.5937/savteh1601066D
ER  - 

@article{
author = "Đokić-Stojanović, Dušica R. and Todorović, Zoran B. and Troter, Dragan Z. and Todorović, Vanja and Đorđević, Biljana S. and Stamenković, Olivera S. and Veljković, Vlada B.",
year = "2016",
abstract = "A heterogeneous reaction process using propylene glycol (PEG), ethyl acetate and diethyl ether as cosolvents for the transesterification of sunflower oil with ethanol in the presence of calcium oxide as a catalyst has been developed. Significant results were obtained with propylene glycol as a cosolvent. Under determined reaction conditions (CaO concentration, based on the oil weight 1.3736 mol∙dm-3; temperature 70°C; and ethanol-to-oil molar ratio 12:1), the conversion of sunflower oil to fatty acid ethyl esters (FAEE) exceeded 98% after 120 min, which was 2 times faster than transesterification of sunflower oil without a cosolvent. After initially enhanced ethanolysis, after 180 min ethyl acetate and diethyl ether negatively influenced the reaction rate and the FAEE yield., U radu je opisana heterogena transesterifikacija suncokretovog ulja sa etanolom i kalcijum oksidom kao katalizatorom u prisustvu polietilen glikola (PEG), etil acetata i dietil etra kao kosolvenata. Najpovoljniji rezultati su dobijeni sa polietilen glikolom kao kosolventom gde je, pod određenim reakcionim uslovima (koncentracija CaO, računata u odnosu na masu ulja 1.3736 mol∙dm-3, temperatura 70°C i molarni odnos etanol:ulje 12:1), konverzija suncokretovog ulja u etil estre masnih kiselina (FAEE) dostigla vrednost od 98% nakon 120 minuta, što je 2 puta brže od transesterifikacije suncokretovog ulja bez prisustva kosolventa. Etil acetat i dietil etar poboljšavaju reakciju etanolize na početku, ali, kako reakcija napreduje, posle 180 minuta, njihovo prisustvo u reakcionoj smeši negativno utiče na brzinu reakcije i prinos etil estrara masnih kiselina (FAEE).",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Advanced Technologies",
title = "Heterogeneously catalysed ethanolysis of sunflower oil in the presence of propylene glycol, ethyl acetate and diethyl ether as cosolvents, Heterogeno katalizovana etanoliza suncokretovog ulja u prisustvu polietilen glikola, etil acetata i dietil etra kao kosolvenata",
volume = "5",
number = "1",
pages = "66-72",
doi = "10.5937/savteh1601066D"
}

Đokić-Stojanović, D. R., Todorović, Z. B., Troter, D. Z., Todorović, V., Đorđević, B. S., Stamenković, O. S.,& Veljković, V. B.. (2016). Heterogeneously catalysed ethanolysis of sunflower oil in the presence of propylene glycol, ethyl acetate and diethyl ether as cosolvents. in Advanced Technologies
Univerzitet u Nišu - Tehnološki fakultet, Leskovac., 5(1), 66-72.
https://doi.org/10.5937/savteh1601066D

Đokić-Stojanović DR, Todorović ZB, Troter DZ, Todorović V, Đorđević BS, Stamenković OS, Veljković VB. Heterogeneously catalysed ethanolysis of sunflower oil in the presence of propylene glycol, ethyl acetate and diethyl ether as cosolvents. in Advanced Technologies. 2016;5(1):66-72.
doi:10.5937/savteh1601066D .

Đokić-Stojanović, Dušica R., Todorović, Zoran B., Troter, Dragan Z., Todorović, Vanja, Đorđević, Biljana S., Stamenković, Olivera S., Veljković, Vlada B., "Heterogeneously catalysed ethanolysis of sunflower oil in the presence of propylene glycol, ethyl acetate and diethyl ether as cosolvents" in Advanced Technologies, 5, no. 1 (2016):66-72,
https://doi.org/10.5937/savteh1601066D . .