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undergraduate thesis
Određivanje mehanizma rasta kristala boraksa tijekom procesa šaržne kristalizacije
završni rad
2017. urn:nbn:hr:167:740147
Franičević, Ana
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

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Franičević, A. (2017). Određivanje mehanizma rasta kristala boraksa tijekom procesa šaržne kristalizacije : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:740147

Franičević, Ana. "Određivanje mehanizma rasta kristala boraksa tijekom procesa šaržne kristalizacije : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:167:740147

Franičević, Ana. "Određivanje mehanizma rasta kristala boraksa tijekom procesa šaržne kristalizacije : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:167:740147

Franičević, A. (2017). 'Određivanje mehanizma rasta kristala boraksa tijekom procesa šaržne kristalizacije : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 12 December 2024, https://urn.nsk.hr/urn:nbn:hr:167:740147

Franičević A. Određivanje mehanizma rasta kristala boraksa tijekom procesa šaržne kristalizacije : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2017 [cited 2024 December 12] Available at: https://urn.nsk.hr/urn:nbn:hr:167:740147

A. Franičević, "Određivanje mehanizma rasta kristala boraksa tijekom procesa šaržne kristalizacije : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:167:740147

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Metadata
TitleOdređivanje mehanizma rasta kristala boraksa tijekom procesa šaržne kristalizacije : završni rad
Title (english)Determination of the borax crystal growth mechanisms in batch cooling crystallization : bachelor thesis
AuthorAna Franičević
MentorNenad Kuzmanić (mentor)
Committee memberSenka Gudić (predsjednik povjerenstva)
Committee memberSandra Svilović (član povjerenstva)
Committee memberNenad Kuzmanić (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2017-09-28, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U radu je analiziran mehanizam rasta kristala boraksa (Na 2 B 4 O 7 x 10 H 2 O) tijekom procesa njegove šaržne kristalizacije postupkom kontroliranog hlađenja. Ispitivanja su se provodila u kristalizatoru laboratorijskog mjerila (V = 2,14 dm 3 ) u kojem se matična otopina miješala uporabom dvaju različitih tipova miješala: radijalnim SBT i aksijalnim PBT tipom miješala. Detaljno je analiziran utjecaj konvekcijskog toka kojeg razvijaju pojedini tipovi miješala na rast kristala. Rast kristala analiziran je difuzijsko – integracijskim modelom a potom i Mersmannovim modelom rasta kristala. S obzirom na način razvijanja modela, Mersmannov model može se prihvatiti kao vjerodostojniji budući da on u obzir vrlo detaljno uzima kako fizikalne karakteristike kristalizirajuće soli, tako i procesne uvjete, odnosno geometrijske karakteristike kristalizatora. Mersmannov model rasta kristala upućuje na to da se rast kristala boraksa tijekom šaržne kristalizacije odvija integracijskim mehanizmom i kod primjene PBT i SBT tipa miješala.
Abstract (english)
This thesis aims to analyze the borax crystal growth mechanism during the process of batch cooling crystallization. The experiments were performed in a laboratory scale crystallizer (V = 2,14 dm 3 ) where the mother liquor was mixed using two different types of impellers: SBT radial and PBT axial impeller. The influence of convective flow of certain impeller types on crystal growth was analyzed in detail. Furthermore, the analysis of crystal growth was performed using a diffusion - integration model and, subsequently, using the Mersmann model of crystal growth. With regard to the manner of model developing, the Mersmann model can be accepted as more credible since it minutely takes into consideration both the physical characteristics of crystallizing salt and the process conditions, or geometrical characteristics of the crystallizer. The Mersmann model of crystal growth indicates that regardless of the application of the PBT or SBT impeller, the borax crystal growth in batch crystallizer occurs by the integration mechanism.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:740147
ProjectNumber: IP-2013-11-8959
Title: Utjecaj procesnih parametara na kinetiku heterogenih sustava koji se odvijaju u šaržnom reaktoru s miješanjem
Acronym: HETMIX
Leader: Nenad Kuzmanić
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: IP
Study programmeTitle: Chemical Technology; specializations in: Chemical Engineering, Environmental Protection
Course: Chemical Engineering
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
Embargo expiration date: 2019-09-19
Terms of useLicence In copyright icon
Public noteKljučne riječi doradio knjižničar/ Key words are revised by the librarian
Created on2018-04-09 09:41:10