caa a22 4500 46318842X CHVBK 20180406164900.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10973-005-7459-0 doi (NATIONALLICENCE)springer-10.1007/s10973-005-7459-0 Thermal behavior of a mineral mixture of sepiolite and dolomite [Elektronische Daten] [Nilgün Yener, Müşerref Önal, Gökçe Üstünışık, Y. Sarıkaya] An industrial raw material taken from Beypazarı (Ankara, Turkey) region was heated at different temperatures in the 100-1100°C interval for 2 h. The volumetric percentage of particles having diameter below 2 μm in an aqueous suspension of the material held 24 h were determined as 85% by the particle size distribution analysis. The mineralogical composition of the material was obtained as mass% of 81% sepiolite, 15% dolomite, and 4% interparticle water by using the X-ray diffraction (XRD) and thermal analysis (TG, DTA) data. The temperature ranges were determined for the dehydrations of the interparticle water and the zeolitic water as 25-340°C, for the dehydration of the bound water as 340-580°C, and for the dehydroxylation of the hydroxyls as 800-833°C in the sepiolite. The zig-zag changes in the specific surface area (S/m2 g−1) and specific micro-and mesopore volume (V/cm3 g−1) with the temperature increases were discussed according to the dehydrations and dehydroxylation of the sepiolite. Springer Science+Business Media, LLC., 2007 dehydration nationallicence dehydroxylation nationallicence sepiolite nationallicence surface area nationallicence thermal analysis nationallicence X-ray diffraction nationallicence Yener Nilgün Medical School, Department of Biochemistry, Dokuz Eylül University, Inciraltı, İzmir, Turkey aut Önal Müşerref Faculty of Science, Department of Chemistry, Ankara University, Tando ǧgan, Ankara, Turkey aut Üstünışık Gökçe Department of Geology, University of Cincinnati, Cincinnati, Ohio, USA aut Sarıkaya Y. Faculty of Science, Department of Chemistry, Ankara University, Tando ǧgan, Ankara, Turkey aut Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 88/3(2007-06-01), 813-817 1388-6150 88:3<813 2007 88 10973 https://doi.org/10.1007/s10973-005-7459-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-005-7459-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yener Nilgün Medical School, Department of Biochemistry, Dokuz Eylül University, Inciraltı, İzmir, Turkey aut NATIONALLICENCE 700 1- Önal Müşerref Faculty of Science, Department of Chemistry, Ankara University, Tando ǧgan, Ankara, Turkey aut NATIONALLICENCE 700 1- Üstünışık Gökçe Department of Geology, University of Cincinnati, Cincinnati, Ohio, USA aut NATIONALLICENCE 700 1- Sarıkaya Y. Faculty of Science, Department of Chemistry, Ankara University, Tando ǧgan, Ankara, Turkey aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 88/3(2007-06-01), 813-817 1388-6150 88:3<813 2007 88 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer