University of PardubiceFaculty of Chemical Technology

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Mg/Al mixed oxides catalysts - structure and basicity

Authors: Troppová Ivana | Smoláková Lucie | Kutálek Petr | Čapek Libor | Hájek Martin | Kocík Jaroslav | Kubička David

Year: 2013

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	Mg/Al mixed oxides catalysts - structure and basicity	Mg/Al mixed oxides with different Mg/Al molar ratio (from 1.8 to 3.7) and temperature of pre-treatment (450 – 1100 °C) were synthesized by thermal pre-treatment of hydrotalcite-like precursors and used as catalysts for transesterification of rapeseed oil. The goal of work is to study the influence of Mg/Al molar ratio, thermal pre-treatment and process of catalyst preparation (Mg/Al-Na, Mg/Al-K, Mg/Al-NH4, Mg/Al-urea) on total concentration of basic sites, crystallite size of MgO and specific surface area and yield of esters. The relation among variables was described by statistical analysis (principal component analysis and the correlation matrix).	Mg/Al mixed oxides; catalyst; basicity; hydrotalcit; transesterification