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Uticaj procesnih parametara na osobine 4a zeolita uz karakterizaciju X-ray i FT-IR instrumentalnim metodama

dc.creatorJanković, Mladen
dc.creatorObrenović, Zoran
dc.creatorFilipović, Radislav
dc.creatorOstojić, Željko
dc.creatorDošić, Aleksandar
dc.creatorMilovanović, Biljana
dc.creatorTomašević, Dragana
dc.date.accessioned2020-11-19T08:22:33Z
dc.date.available2020-11-19T08:22:33Z
dc.date.issued2018
dc.identifier.issn0351-9465
dc.identifier.urihttps://cer.ihtm.bg.ac.rs/handle/123456789/3777
dc.description.abstractFor more than three decades 4A zeolite has been an irreplaceable ingredient of powder detergents, but there is still striving to it’s improvement in order to meet the ever more stringent market and environmental demands.Alumina d.o.o., as one of the world-renowned producers of this zeolite, tends to meet these requirements, and one of the latest examples is the work on the production of zeolite 4A with increased adsorption of surface active substances, and the testing of parameters for the synthesis of such a zeolite as well as its characterization is the subject of this paper. The zeolite synthesis were performed to examine the effect of the Na2O concentration in the reaction system, as well as the crystallization time on thecharacteristics of detergent zeolite, namely:the adsorption of dibutylphthalate (DBP), the mean particle diameter, and the ion exchange capacity. The additional characterization of the samples was performed by XRD and FTIR instrumental methods. It’s shown that the conditions examined have a significant effect on the characteristics of the synthesized powders. In general, at all crystallization times, adsorption of DBP, as well as the mean diameter, increases with the increase in Na2O concentration, while the ion exchange capacity decreases,and it is very important to find the right conditions in which all the parameters will be satisfactory.The influence of the crystallization time is not significantly pronounced when adsorption is concerned, but it is on the other characteristics of zeolite.XRD diffractograms and FT-IR spectroscopy showed the effect of reaction conditions on the crystallinity of the synthesized powders, and the relationship between the crystallinity and other characteristics of 4A zeolite.en
dc.description.abstractZeolit 4A sada već više od tri decenije nezamenljiv je sastojak praškastih deterdženata, ali se i dalje teži njegovom usavršavanju kako bi se što uspešnije ispunili sve strožiji tržišni i ekološki zahtevi. Kompanija Alumina d.o.o. kao jedan od svetski priznatih proizvođača ovog zeolita teži ispunjavanju tih zahteva. Predmet ovog rada je upravo ispitivanje parametara za sintezu takvog zeolita kao i njegova karakterizacija. Sinteze zeolita izvođene su tako da se ispita uticaj koncentracije Na2O u reakcionom sistemu, kao i vremena kristalizacije na karakteristike deterdžentskog zeolita, i to adsorpciju dibutilftalata (DBP), srednji prečnik čestice (Ds50) i jonoizmenjivački kappacitet (JIK).Dodatna karakterizacija uzoraka izvršena je XRD i FTIR instrumentalnim metodama. Pokazalo se da ispitivani uslovi imaju značajan uticaj na karakteristike sintetisanih prahova. Generalno, pri svim vremenima kristalizacije, adsorpcija DBP raste sa porastom koncentracije Na2O, kao i srednji prečnik, dok JIK opada, te je jako bitno pronaći uslove u kojima će svi parametri biti zadovoljavajući. Uticaj vremena nije značajno izražen kada je adsorpcija u pitanju, ali jeste na ostale karakteristike zeolita. XRD difraktogramii FT-IR spektroskopija pokazali su uticaj reakcionih uslova na kristaliničnost, te vezu između kristaliničnosti i drugih karakteristika 4A zeolita.sr
dc.language.isosrsr
dc.publisherInženjersko društvo za korozijusr
dc.rightsopenAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceZaštita materijalasr
dc.subject4A zeolitesr
dc.subjectadsorption of dibutyl phthalatesr
dc.subjectinstrumental methods characterizationsr
dc.subjectinfluence of concentrationsr
dc.subjectinfluence of crystallization timesr
dc.subjectsurface active substancessr
dc.subjectadsorpcija dibutil ftalatasr
dc.subjectvreme kristalizacijesr
dc.subjectpovršinski aktivne materijesr
dc.subjectXRDsr
dc.subjectFTIRsr
dc.titleInfluence of process parameters on properties of the 4a zeolite with X-ray and FT-IR instrumental methods characterizationen
dc.titleUticaj procesnih parametara na osobine 4a zeolita uz karakterizaciju X-ray i FT-IR instrumentalnim metodamasr
dc.typearticlesr
dc.rights.licenseBYsr
dcterms.abstractТомашевић, Драгана; Миловановић, Биљана; Дошић, Aлександар; Остојић, Жељко; Филиповић, Радислав; Обреновић, Зоран; Јанковић, Младен;
dc.citation.volume59
dc.citation.issue3
dc.citation.spage401
dc.citation.epage409
dc.citation.rankM24
dc.identifier.doi10.5937/ZasMat1803401J
dc.identifier.fulltexthttps://cer.ihtm.bg.ac.rs/bitstream/id/17656/7DOSIC_PRELOM-korigovan.pdf
dc.type.versionpublishedVersionsr


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