Thorium equilibria with the sodium form of clinoptilolite and mordenite

Constantopoulou, C; Loizidou, M; Loizou, Z; Spyrellis, N

dc.contributor.author	Constantopoulou, C	en
dc.contributor.author	Loizidou, M	en
dc.contributor.author	Loizou, Z	en
dc.contributor.author	Spyrellis, N	en
dc.date.accessioned	2014-03-01T01:10:22Z
dc.date.available	2014-03-01T01:10:22Z
dc.date.issued	1994	en
dc.identifier.issn	0236-5731	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11385
dc.subject	Equilibrium Point	en
dc.subject	Free Energy	en
dc.subject	Iron	en
dc.subject.classification	Chemistry, Analytical	en
dc.subject.classification	Chemistry, Inorganic & Nuclear	en
dc.subject.classification	Nuclear Science & Technology	en
dc.subject.other	sodium	en
dc.subject.other	thorium	en
dc.subject.other	zeolite	en
dc.subject.other	article	en
dc.subject.other	ion exchange	en
dc.title	Thorium equilibria with the sodium form of clinoptilolite and mordenite	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF02068665	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF02068665	en
heal.language	English	en
heal.publicationDate	1994	en
heal.abstract	A study has been performed in order to examine the ion exchange behavior of tetravalent thorium ions using natural sodium clinoptilolite and mordenite. The free energy values, DELTAG0, were calculated and found to be 3.33 kJ/g eq for the Th/Na-CLI system, and for Th/Na-MOR 3.94 kJ/g eq. Despite the fact that the overall preference of the zeolites is for the sodium ions,thorium uptake was quite significant for mordenite. covering 30% of its theoretical exchange capacity at the equilibrium point, while for clinoptilolite only 10% was occupied.	en
heal.publisher	AKADEMIAI KIADO	en
heal.journalName	Journal of Radioanalytical and Nuclear Chemistry	en
dc.identifier.doi	10.1007/BF02068665	en
dc.identifier.isi	ISI:A1994NG34400015	en
dc.identifier.volume	178	en
dc.identifier.issue	1	en
dc.identifier.spage	143	en
dc.identifier.epage	151	en