caa a22 4500 463223942 CHVBK 20180405153221.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s10853-006-0531-8 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0531-8 Dissolution of aluminosilicate minerals and by-products in alkaline media [Elektronische Daten] [Ch. Panagiotopoulou, E. Kontori, Th. Perraki, G. Kakali] In this work, the leaching behaviour of six aluminosilicate industrial minerals and by-products (kaolin, metakaolin, fly ash, natural pozzolana from Milos, zeolite and furnace slag) in alkaline solutions is investigated. The variables studied are the kind of alkali metal (K, Na), the concentration of the alkaline solution (2.5, 5 and 10M) and the time of dissolution (5, 10 and 24h). The solid residue after the leaching was examined by means of XRD and FTIR. As it is concluded, the leaching ability of Al and Si is according to the following descending order: Metakaolin>Zeolite>Slag>Fly Ash>Pozzolana>Kaolin. The extent of dissolution is higher in NaOH than in KOH solutions, especially when the most reactive materials are concerned. Finally, Si and Al seem to have a synchronized leaching behaviour in both alkaline solutions. Springer Science+Business Media, LLC, 2006 Panagiotopoulou Ch School of Chemical Engineering, Labs of Inorganic and Analytical Chemistry, National Technical University of Athens, 9 Heroon Polytechniou St., 15773, Athens, Greece aut Kontori E. School of Mining and Metallurgical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15773, Athens, Greece aut Perraki Th School of Mining and Metallurgical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15773, Athens, Greece aut Kakali G. School of Chemical Engineering, Labs of Inorganic and Analytical Chemistry, National Technical University of Athens, 9 Heroon Polytechniou St., 15773, Athens, Greece aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/9(2007-05-01), 2967-2973 0022-2461 42:9<2967 2007 42 10853 https://doi.org/10.1007/s10853-006-0531-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0531-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Panagiotopoulou Ch School of Chemical Engineering, Labs of Inorganic and Analytical Chemistry, National Technical University of Athens, 9 Heroon Polytechniou St., 15773, Athens, Greece aut NATIONALLICENCE 700 1- Kontori E. School of Mining and Metallurgical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15773, Athens, Greece aut NATIONALLICENCE 700 1- Perraki Th School of Mining and Metallurgical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15773, Athens, Greece aut NATIONALLICENCE 700 1- Kakali G. School of Chemical Engineering, Labs of Inorganic and Analytical Chemistry, National Technical University of Athens, 9 Heroon Polytechniou St., 15773, Athens, Greece aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/9(2007-05-01), 2967-2973 0022-2461 42:9<2967 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer