THE CATION EXCHANGE CAPACITY OF INDUSTRIAL MINERALS AND ROCKS OF MILOS ISLAND


N. Kantiranis
A. Filippidis
S. Vouta
A. Drakoulis
Th. Koutles
E. Tzamos
Résumé

Four samples of bentonite, two of perlite, a kaolin and a pumice sample from five mines of Milos Island, have been investigated for their Cation Exchange Capacity (CEC) and the mineralogical composition (wt.%), by using the Ammonium Acetate Saturation (AMAS) method and X-Ray Powder Diffraction (XRPD) method, respectively. The bentonite samples contain 68-100 wt.% clay minerals and show CEC values of 35-121 meq/100g, while the kaolin sample contain 41 wt.% clay minerals and show CEC value of 28 meq/100g. The amorphous materials are the main constituent of the perlite samples (73-77 wt.%) and pumice sample (88 wt.%). The CEC values ofperlites were 3-4 meq/100g, while the pumice sample showed a CEC value of 73 meq/100g. The CEC of the samples showed positive correlations with the total content of microporous minerals (clay minerals+micas) as well as with the microporous minerals+amorphous content, mainly affected by the clay minerals content.

Article Details
  • Rubrique
  • Mineralogy-Petrology-Geochemistry-Economic Geology
Téléchargements
Les données relatives au téléchargement ne sont pas encore disponibles.
Références
Decher, Α., Bechtel, Α., Echle, W., Friedrich, G., and Hoernes, S., 1996. Stable isotope geochemistry of bentonites from the island of Milos (Greece), Chemical Geology, 129, 101-113.
Drakoulis, Α., Kantiranis, N., Filippidis, Α., and Sergiou, Α., 2005. The uptake ability of amorphous-rich industrial materials from Milos Island, Proc. 2nd Congr. Econ. Geol.-Geochem. Com. of Geol. Soc. Greece, Thessaloniki, 7-9 October, 55-63 (in Greek with English abstract).
Fytikas, M., 1977. Geological map of Greece. Sheet: Milos Island, scale: 1:25.000. IGME, Athens.
Harben, W.P., 2002. The industrial minerals handybook, A guide to markets, specifications & prices, 4th Edn. Blackwood UK, Pensord, 409 pp.
Hein, J.R., Dowling, J., and Stamatakis, M.G., 1999. Hydrothermal Mn-oxide deposit rich in Ba, Zn, As, Pb and Sb, Milos Island, Greece. In Stanley, et al., (eds) Mineral Deposits: Processes to Processing, 519-522, Balkema, Rotterdam, 1500pp.
Hein, J.R., Stamatakis, M.G., and Dowling, J.S., 2000. Trace Metal-rich Quaternary Hydrothermal Manganese Oxide and Barite Deposit, Milos Island, Greece, Trans. Instn Min. Metall. (Section Β), 109,67-76.
Kantiranis, Ν., Stamatakis, M., Filippidis, Α., and Squires, C, 2004a. The uptake ability of clinoptilolitic tuff of Samos Island, Bull. Geol. Soc. Greece, 36, 89-96
Kantiranis, Ν., Stergiou, Α., Filippidis, Α., and Drakoulis, Α., 2004b. Calculation of the percentage of amorphous material using PXRD paterns, Bull. Geol. Soc. Greece, 36, 446-453. (in Greek with English abstract)
Kantiranis, N., Filippidis, Α., Drakoulis, Α., and Tsirambides, Α., 2005. Study of uptake ability of Milos bentonite and Grevena attapulgite, Proc. 2nd Congr. Econ. Geol.-Geochem. Com. Of Geol. Soc. Greece, Thessaloniki, 7-9 October, 105-112. (in Greek with English abstract)
Perraki, Th., and Orfanoudaki, Α., 1997. Etude de la composition mineralogique et de propriétés physiques des bentonites de Γ ile de Milos (Grece), Mineral Wealth, 104, 35-42. (in Greek with French summary)
Stamatakis, G.M., Lutat, U., Regueiro, M., and Calvo, P.J., 1996. Milos: The mineral island, Industrial Minerals, 341, 57-61
Articles les plus lus par le même auteur ou la même autrice