Usporedna rendgensko-difrakcijska analiza glina

undergraduate thesis

• Title (english): Comparative X-ray diffraction analysis of clays
• Author: Martina Budimir
• Mentor: Stanislav Kurajica (mentor)
• Committee member: Stanislav Kurajica (predsjednik povjerenstva)
• Committee member: Nevenka Vrbos (član povjerenstva)
• Committee member: Šime Ukić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2016-09-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Basic Technical Sciences; Materials

Abstract

Tri uzorka glina: TWVA, VB i Stanari, istraživana su metodom rendgenske difrakcijske analize. U svrhu nedvojbene identifikacije minerala glina koje uzorci sadrže provedene su analize izvornih uzoraka, uzoraka termički obrađenih pri temperaturi od 350 i 550 °C te uzoraka obrađenih s etilen glikolom. Utvrđeno je da se uzorak TWVA sastoji od kvarca, kaolinita i muskovita; uzorak VB od kvarca, kristobalita, montmorilonita i glinenca te uzorak Stanari od kvarca, montmorilonita i kaolinita. Naime, udaljenost slojeva u kaolinitu se termičkom obradom pri 350°C ne mijenja, dok termičkom obradom pri 550°C dolazi do raspada kaolinita. Udaljenost slojeva u kaolinitu glikolacijom se ne mijenja. Zagrijavanjem montmorilonita pri 350°C i 550 °C dolazi do smanjenja udaljenosti slojeva, dok glikolacijom dolazi do povećanja udaljenosti slojeva.

Abstract (english)

Three clay samples: TWVA, VB and Stanari, have been investigated via X-ray diffraction analysis. In order to make undoubted identification of clay minerals that samples are composed of, the analysis of as received samples, samples thermally treated at temperatures of 350 and 550 °C and samples treated with ethylene glycol have been conducted. It has been determined that sample TWVA is composed of quartz, kaolinite and muscovite, sample VB of quartz, montmorillonite and feldspars and sample Stanari of quartz, montmorillonite and kaolinite. Namely, the distance between kaolinite layers doesn’t change with thermal treatment at 350°C, while thermal treatment at 550°C causes the decomposition of kaolinite. Glycolation of kaolinite doesn’t affect the interlayer distance. Heating of montmorillonite at 350°C as well at 550 °C causes the reduction of interlayer distance while glycolation causes the increase of interlayer distance.

• Keywords: gline; glikolacija glina; rendgenska difrakcija praha; termička obrada glina
• Keywords (english): clays; glycolation of clays; powder X-ray diffraction; thermal treatment of clays
• Language: croatian
• URN:NBN: urn:nbn:hr:149:334770
• Study programme: Title: Materials Science and 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 resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-02-06 11:55:25