Počet záznamů: 1
Thermal behaviour of ground and unground acid leached vermiculite
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SYSNO ASEP 0379819 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Thermal behaviour of ground and unground acid leached vermiculite Tvůrce(i) Pérez-Maqueda, L. A. (ES)
Maqueda, C. (ES)
Pérez-Rodríguez, J. L. (ES)
Šubrt, Jan (UACH-T) SAI, RID
Černý, Zbyněk (UACH-T) RID, SAI
Balek, V. (CZ)Zdroj.dok. Journal of Thermal Analysis and Calorimetry. - : Akadémiai Kiadó - ISSN 1388-6150
Roč. 107, č. 2 (2012), s. 431-438Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. HU - Maďarsko Klíč. slova vermiculite ; grinding ; acid leaching ; DTA ; TG ; EGA ; emanation thermal analysis Vědní obor RIV CA - Anorganická chemie CEP LC523 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40320502 - UACH-T (2005-2011) UT WOS 000299376600003 DOI 10.1007/s10973-011-1480-2 Anotace Acid leaching of vermiculite is an interesting procedure to prepare high surface area porous silica. Thermal behaviour of unground and ground vermiculite leached with HCl solutions has been studied by TG, DTA, ETA and high temperature XRD. Important differences have been observed in the thermal behaviour of unground and ground vermiculite after the acid treatments. Thus, for the acid-treated unground vermiculite, dehydrated vermiculite, enstatite and cristobalite were formed during the heating, while for the acid-treated ground vermiculite only iron oxides and cristobalite phases were observed. Structural modifications due to acid treatment were responsible for changes in the transport properties determined by ETA for the vermiculite samples. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2013
Počet záznamů: 1