Eksperimentalno određivanje i modeliranje razdjeljivanja propionske kiseline između vode i organskih estera

master's thesis

• Title (english): Experimetal determination and modelling of the distribution of propionic acid between water and organic esters
• Author: Mia Plenča
• Mentor: Marko Rogošić (mentor)
• Committee member: Marko Rogošić (predsjednik povjerenstva)
• Committee member: Aleksandra Sander (član povjerenstva)
• Committee member: Ante Jukić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2017-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering; Analysis, Synthesis and Management of Chemical Processes

Abstract

U ovom radu predložena kombinacija titracijske i refraktometrijske metode za ekperimentalno određivanje parametara fazne ravnoteže kapljevina-kapljevina testirana je u sustavima butil-acetat (1) – propionska kiselina (2) – voda (3) i dimetil-adipat (1) – propionska kiselina (2) – voda (3), pri 25 °C i atmosferskom tlaku i pokazala se načelno primjenjivom uz određene probleme povezane s niskom osjetljivosti metode za određivanje sastava organske faze. Provedena je usporedba eksperimentalnih podataka s literaturnima te njihov opis modelima koeficijenta aktivnosti NRTL i UNIQUAC. Model UNIQUAC pokazao se nešto uspješnijim. Rezultati ukazuju da su istraživani organski esteri potencijalno učinkovita sredstva za ekstrahiranje propionske kiseline iz vode pri čemu butil-acetat ima prednost u odnosu na dimetil-adipat.

Abstract (english)

The combination of titration and refractometric methods for the experimental determination of the liquid-liquid phase equilibrium parameters was proposed in this paper and tested in the systems butyl acetate (1) – propionic acid (2) – water (3) and dimethyl adipate (1) – propionic acid (2) – water (3) at 25 °C and atmospheric pressure; it proved to be applicable in general with certain problems associated with the low sensitivity of the method for determining the composition of the organic phase. A comparison of experimental data with the literature and the description of data with the NRTL and UNIQUAC activity coefficient models was performed. The UNIQUAC model proved to be somewhat more successful. The results indicate that the investigated organic esters are potentially effective agents for extracting propionic acid from water, whereby butyl acetate has an advantage over dimethyl adipate.

• Keywords: propionska kiselina; butil-acetat; dimetil-adipat; binodalna krivulja; refraktometrija; NRTL; UNIQUAC
• Keywords (english): propionic acid; butyl acetate; dimethyl adipate; solubility curve; refractometry; NRTL; UNIQUAC
• Language: croatian
• URN:NBN: urn:nbn:hr:149:772607
• Study programme: Title: Applied Chemistry - Graduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry; Course: Advanced materials and technologies; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra primijenjene kemije (magistar/magistra primijenjene kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-04-23 14:48:52