The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
EPI-type zeolite was synthesised from Greek sulphocalcic lignite fly ashes. They consist mainly of SiO 2 , CaO and Al 2 O 3 , while the SiO 2 /Al 2 O 3 ratio was found to be 2.74. The activation was performed by 30% H 2 O 2 in an open system. Zeolite formation was observed only when activated products aged at 95°C. The resulting materials...
GIS-type zeolite (gobbinsite-NaP1) was synthesized from sulphocalcic lignite fly ashes, from the Agios Dimitrios and Amynteon-Filotas power plants of the Lignite Center of Ptolemais-Amynteon, Macedonia, Greece. The fly ash samples were treated with 0.1 and 0.5 moldm -3 NaOH solutions at 90 o C and at room temperature. Both fly ash samples contained calcite, quartz, anhydrite and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.