Mineralogical study of zeolites from Pentalofos area, Thrace, Greece

Perraki, Th; Orfanoudaki, A

dc.contributor.author	Perraki, Th	en
dc.contributor.author	Orfanoudaki, A	en
dc.date.accessioned	2014-03-01T01:21:03Z
dc.date.available	2014-03-01T01:21:03Z
dc.date.issued	2004	en
dc.identifier.issn	0169-1317	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16049
dc.subject	CEC	en
dc.subject	FTIR	en
dc.subject	Heulandite	en
dc.subject	TG/DTG/DTA	en
dc.subject	XRD	en
dc.subject	Zeolites	en
dc.subject.classification	Mineralogy	en
dc.subject.other	Cements	en
dc.subject.other	Dehydration	en
dc.subject.other	Differential thermal analysis	en
dc.subject.other	Fourier transform infrared spectroscopy	en
dc.subject.other	Ion exchange	en
dc.subject.other	Mineralogy	en
dc.subject.other	Optical microscopy	en
dc.subject.other	Positive ions	en
dc.subject.other	Thermogravimetric analysis	en
dc.subject.other	X ray diffraction analysis	en
dc.subject.other	Cation exchange capacity (CEC)	en
dc.subject.other	Isomorphous materials	en
dc.subject.other	Zeolites	en
dc.subject.other	cation exchange capacity	en
dc.subject.other	heulandite	en
dc.subject.other	mineralogy	en
dc.subject.other	pollutant removal	en
dc.subject.other	zeolite	en
dc.subject.other	Eurasia	en
dc.subject.other	Thrace	en
dc.title	Mineralogical study of zeolites from Pentalofos area, Thrace, Greece	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0169-1317(03)00156-X	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0169-1317(03)00156-X	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The zeolites of the Pentalofos area, Thrace, Greece, were studied by optical microscopy, X-ray diffraction (XRD) and Fourier Transform IR (FTIR) spectroscopy, in combination with thermoanalytical methods (thermogravimetric analysis (TG/ DTG) and differential thermal analysis (DTA)). Their main mineral constituent (>90%) is "heulandite type-II", an intermediate type of the isomorphous series heulandite-clinoptilolite end members. Feldspars, muscovite, biotite, quartz, and cristobalite were also detected. Traces of smectite were found in only few samples. The cation exchange capacity (CEC) of the Pentalofos zeolites (119 to 152 meq/100 g), as well as their low temperature dehydration behavior (during heating up to 350 degreesC, 15 of similar to 22 molecules H2O are removed) are also characteristic for an intermediate member of the heulandite-clinoptilolite zeolite ("heulandite type-II"). These properties make them a powerful toot in the decontamination of waters and soils, in agriculture, in cement industry, etc. Moreover, this zeolite deposit is of a great economic interest, considering that it is the richest among the zeolite formations in Northeastern Greece (4.7 x 10(6) tons, with a zeolite content higher than 90%). (C) 2003 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Applied Clay Science	en
dc.identifier.doi	10.1016/S0169-1317(03)00156-X	en
dc.identifier.isi	ISI:000221858700002	en
dc.identifier.volume	25	en
dc.identifier.issue	1-2	en
dc.identifier.spage	9	en
dc.identifier.epage	16	en