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dc.creatorVuković, Zorica
dc.creatorMilutinović Nikolić, Aleksandra
dc.creatorRožić, Ljiljana
dc.creatorRosić, Aleksandra
dc.creatorNedić, Zoran
dc.creatorJovanović, Dušan M.
dc.date.accessioned2020-02-15T17:51:44Z
dc.date.available2020-02-15T17:51:44Z
dc.date.issued2006
dc.identifier.isbn1552-8367
dc.identifier.issn0009-8604
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/3408
dc.description.abstractBentonite from the 'Bogovina' coal mine in Serbia, was characterized. The influence of acid treatment on its composition, as well as mathematical descriptions of this influence are reported. The purpose of this work was to correlate the concentration of the acid used for the treatment with the resulting bentonite composition. X-ray diffraction (XRD), infrared spectroscopy and quantitative chemical analysis were employed to define the changes caused by acid treatment. The contents of all the cations, except Si, decreased exponentially with increasing concentration of the HCl used for the treatment of the bentonite. This approach was tested on previously published data and was shown to be valid. The basal reflections of smectite decreased gradually and eventually disappeared after intense treatment, while the other reflections remained in the XRD patterns of all the samples, but decreased slightly with increasing acid strength. In addition, the amount of X-ray amorphous matter formed increased rapidly with increasing acid concentration up to 4.5 M. With further increase in the acid strength, the amount of X-ray amorphous matter remained virtually constantsr
dc.language.isoensr
dc.publisherUSA : The Clay Minerals Societysr
dc.rightsrestrictedAccesssr
dc.sourceClays and Clay Mineralssr
dc.subjectAcid treatmentsr
dc.subjectBentonitesr
dc.subjectChemical analysissr
dc.subjectIRsr
dc.subjectXRDsr
dc.titleThe influence of acid treatment on the composition of bentonitesr
dc.typearticlesr
dc.rights.licenseARRsr
dcterms.abstractРожић, Љиљана; Вуковић, Зорица; Милутиновић, Aлександра; Јовановић, Душан; Росић, Aлександра; Недић, Зоран;
dc.citation.volume54
dc.citation.issue6
dc.citation.spage697
dc.citation.epage702
dc.citation.rankM21
dc.identifier.doi10.1346/CCMN.2006.0540605
dc.identifier.scopus2-s2.0-33846319321
dc.identifier.wos000243156100005
dc.type.versionpublishedVersionsr


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