Purification of natural zeolite-clinoptilolite for medical application: Extraction of lead | Zendy

Magdalena Tomašević-Čanović | Zendy

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Purification of natural zeolite-clinoptilolite for medical application: Extraction of lead

Author(s) -

Magdalena Tomašević-Čanović

Publication year - 2005

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc0511335t

Subject(s) - clinoptilolite , zeolite , leaching (pedology) , extraction (chemistry) , chemistry , montenegro , nuclear chemistry , environmental science , chromatography , soil water , geography , soil science , biochemistry , catalysis , regional science

A series of experiments of the leaching of lead and other cations from three samples of natural zeolite-clinoptilolite, (Sample 1-deposit Zlatokop, Vranjska Banja, Serbia and Montenegro; Sample 2-deposit Bala Mare, Romania; Sample 3-Igros near Brus, Serbia and Montenegro) using EDTA was conducted. The results of the experi- ments showed that the extraction efficiencies from the examined samples were differ- ent. If a suficiently large amount of EDTA was applied, most of the lead was extracted only from Sample 1-deposit Zlatokop. Similar effects were obtained for the leaching of iron. The differences in the extraction efficiencies may be due to the difference of the of lead and iron species present in the zeolite crystals. The effects of EDTA concentration and solid/liquid ratio on the extraction of lead, iron and aluminum were studied.

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