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Title:MONOESTERIFIKACIJA ETILENGLIKOLA: DOLOČANJE MEHANIZMA IN HITROSTI REAKCIJE
Authors:ID Ravber, Matej (Author)
ID Goršek, Andreja (Mentor) More about this mentor... New window
ID Pečar, Darja (Comentor)
Files:.pdf UNI_Ravber_Matej_2012.pdf (791,39 KB)
MD5: 2C5BD84628F944013BA9C8B9BBDF04DD
PID: 20.500.12556/dkum/cb87b99a-1b4c-4cbb-8b33-29cbc02f5ac0
 
Language:Slovenian
Work type:Undergraduate thesis
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Cilj diplomskega dela je bil razviti kinetični model in mehanizem monoesterifikacije, tipične reverzibilne reakcije. Kot primer smo uporabili monoesterifikacijo etilen glikola z benzojsko kislino. Reakcija je bila katalizirana v kislem mediju ob prisotnosti α-aluminijevega oksida. Vsi eksperimenti so bili izvedeni v avtomatiziranem reakcijskem kalorimetru, opremljenim z in-line IR spektrometrom. Na osnovi IR spektrov in metodologije umeritvene krivulje smo dobili koncentracijske profile produkta. Določili smo red reakcije, obe konstanti proizvodnosti in aktivacijsko energijo. Z uporabo kinetičnih in stehiometričnih podatkov smo ugotovili reakcijski mehanizem, ki pojasnjuje opažene značilnosti reakcije.
Keywords:Monoesterifikacija, etilen glikol, reverzibilna reakcija, kinetika, mehanizem.
Place of publishing:Maribor
Publisher:[M. Ravber]
Year of publishing:2012
PID:20.500.12556/DKUM-37347 New window
UDC:661.725.822:677.027.622(043.2)
COBISS.SI-ID:16485654 New window
NUK URN:URN:SI:UM:DK:8RLS082K
Publication date in DKUM:11.09.2012
Views:1643
Downloads:201
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:MONOESTERIFICATION OF ETHYLENE GLYCOL: DETERMINATION OF MECHANISM AND RATE OF REACTION
Abstract:The goal of this work was to develop the kinetic model and mechanism of monoesterification, a typical reversible reaction. As an example we used the ethylene glycol monoesterification with benzoic acid. The reaction was catalyzed in acidic medium supported with α-aluminum oxide. All experiments were carried out in an automated reaction calorimeter equipped with an in-line IR spectrometer. Based on the observed IR spectra and calibration curve methodology, product concentration profiles were obtained. Reaction order together with both reaction rate constants and activation energy have been determined. Using the obtained kinetic and stoichiometric data, the reaction mechanism was established which explains the observed reaction characteristics.
Keywords:Monoesterification, Ethylene glycol, Reversible reaction, Kinetics, Mechanism.


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