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undergraduate thesis
Mokro usitnjavanje zeolita u planetarnom mlinu
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. urn:nbn:hr:149:459633
Talajić, Marija
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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Talajić, M. (2015). Mokro usitnjavanje zeolita u planetarnom mlinu (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:459633

Talajić, Marija. "Mokro usitnjavanje zeolita u planetarnom mlinu." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:459633

Talajić, Marija. "Mokro usitnjavanje zeolita u planetarnom mlinu." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:459633

Talajić, M. (2015). 'Mokro usitnjavanje zeolita u planetarnom mlinu', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 04 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:459633

Talajić M. Mokro usitnjavanje zeolita u planetarnom mlinu [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2015 [cited 2024 November 04] Available at: https://urn.nsk.hr/urn:nbn:hr:149:459633

M. Talajić, "Mokro usitnjavanje zeolita u planetarnom mlinu", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:149:459633

Metadata
TitleMokro usitnjavanje zeolita u planetarnom mlinu
Title (english)Wet comminution of zeolite in planetary ball mill
AuthorMarija Talajić
MentorGordana Matijašić (mentor)
Committee memberGordana Matijašić (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 country2015-07-10, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Mechanical, Thermal and Separation Processes
Abstract
Cilj ovog rada bio je usitniti uzorak zeolita klinoptilolita do veličina manjih od mikrometra. Mikroniziranjem zeolita povećava mu se specifična površina, a time i adsorpcijski kapacitet i kapacitet ionske izmjene. Usitnjavanje je provedeno u planetarnom kugličnom mlinu pri različitim brojevima okretaja (300, 400 i 500 o/min) u vremenskim periodima od 10, 20, 30 i 60 minuta. Eksperimenti su provedeni u dvije različite posude mlina pri 500 o/min. Raspodjela veličina čestica određena je metodom laserske difrakcije. Prema dobivenim rezultatima vidljivo je da je usitnjavanjem pri većem broju okretaja i u dužem vremenskom periodu dobiven veći udio manjih čestica. Raspodjela veličina čestica izražena je Sauterovim promjerom. Specifična površina određena je snimanjem adsorpcijsko-desorpcijskih izotermi dušika. Povećavanjem vremena usitnjavanja specifična površina se smanjila zbog narušavanja mikroporozne strukture zeolita.
Abstract (english)
The aim of this work was comminution of the zeolite clinoptilolite to sizes smaller than a micrometer. Micronization increases specific surface area, adsorption capacity and ion exchange capacity of zeolite. Comminution was performed in planetary ball mill at different rotation speed (300, 400 and 500 rpm) at intervals of 10, 20, 30 and 60 minutes. The experiment was conducted in two different grinding pots at 500 rpm. The particle size distribution was determined with laser diffraction method. The results show that the comminution at high rotation speed and over a longer period obtained higher proportion of smaller particles. Particle size distribution was expressed with Sauter diameter. The specific surface area was calculated from the adsorption-desorption isotherms of nitrogen. Specific surface area is reduced increasing the time of comminution, due to the disruption of microporous structure of the zeolite.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:459633
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 on2016-09-12 13:27:25