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undergraduate thesis
Termodinamički modeli za opis topljivosti vitamina B3 u organskim otapalima
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. urn:nbn:hr:149:772326
Anelić, Rafael
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Anelić, R. (2020). Termodinamički modeli za opis topljivosti vitamina B3 u organskim otapalima (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:772326

Anelić, Rafael. "Termodinamički modeli za opis topljivosti vitamina B3 u organskim otapalima." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:772326

Anelić, Rafael. "Termodinamički modeli za opis topljivosti vitamina B3 u organskim otapalima." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:772326

Anelić, R. (2020). 'Termodinamički modeli za opis topljivosti vitamina B3 u organskim otapalima', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 22 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:772326

Anelić R. Termodinamički modeli za opis topljivosti vitamina B3 u organskim otapalima [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2020 [cited 2024 November 22] Available at: https://urn.nsk.hr/urn:nbn:hr:149:772326

R. Anelić, "Termodinamički modeli za opis topljivosti vitamina B3 u organskim otapalima", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:149:772326

Metadata
TitleTermodinamički modeli za opis topljivosti vitamina B3 u organskim otapalima
Title (english)Thermodynamic models for the description of solubility of vitamine B3 in organic solvents
AuthorRafael Anelić
MentorMarko Rogošić (mentor)
Committee memberMarko Rogošić (predsjednik povjerenstva)
Committee memberKrunoslav Žižek (član povjerenstva)
Committee memberJuraj Šipušić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2020-09-18, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U radu su izračunati interakcijski parametri Wilsonova i NRTL-modela koeficijenta aktivnosti koristeći eksperimentalne podatke za temperature od 283,15 K do 323,15 K pri tlaku od 1 bar. Parametri su izračunati za otopine nikotinamida u sljedećim otapalima: vodi, acetonu, n-butanolu, butil-acetatu, etanolu, etil-acetatu, izobutanolu, 2-propanolu, metanolu, metil-acetatu i 1-propanolu. Pomoću dobivenih parametara nacrtani su dijagrami topljivosti nikotinamida u otapalima u promatranom području topljivosti te u cijelom rasponu sastava, od x1 = 0 % do x1 = 100 %. Wilsonov model, sudeći prema dobivenim vrijednostima minimuma funkcija cilja, najlošije opisuje sustav nikotinamid – butil-acetat, a model NRTL najlošije opisuje sustav nikotinamid – etil-acetat. Modeli posebno dobro opisuju sustav nikotinamid – 1-propanol. Dobiveni interakcijski parametri, dijagrami i vrijednosti topljivosti ne mogu se smatrati pouzdanima izvan područja eksperimentalnih vrijednosti jer eksperimentalni podaci pokrivaju razmjerno uski pojas temperatura i topljivosti.
Abstract (english)
In this paper the interaction parameters for the Wilson and NRTL activity coefficient models are calculated using the experimental data for temperatures ranging from 283.15 K to 323.15 K at the pressure of 1 bar. The parameters were calculated for the solutions of nicotinamide in the following solvents: water, acetone, n-butanol, butyl-acetate, ethanol, ethylacetate, isobutanol, 2-propanol, methanol, methyl-acetate and 1-propanol. Using these parameters, diagrams for the solubility of nicotinamide in the experimental range and in the full range of compositions, from x1 = 0% to x1 = 100% were drawn. Judging by the values of the minimum of objective functions, the Wilson model describes the system nicotinamide – butylacetate the worst, while the NRTL model describes the system nicotinamide – ethyl-acetate the worst. The models describe the system nicotinamide – 1-propanol especially well. The calculated interaction parameters and calculated solubility values cannot be taken as reliable outside the experimental range since the experimental data cover a small range of temperatures and solubilities.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:772326
Study programmeTitle: Chemical Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2023-05-02 07:53:41