Mg/Al MIXED OXIDES: PREPARATION, PROPERTIES AND CATALYTIC ACTIVITY IN TRANSESTERIFICATION OF RAPESEED OIL

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F12%3A39895749" target="_blank" >RIV/00216275:25310/12:39895749 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Mg/Al MIXED OXIDES: PREPARATION, PROPERTIES AND CATALYTIC ACTIVITY IN TRANSESTERIFICATION OF RAPESEED OIL

Popis výsledku v původním jazyce

This paper reviews the preparation, physicochemical properties and application of Mg/Al mixed oxides. Attention is focused on the activity of Mg/Al mixed oxides in transesterification of rapeseed oil. The mixed oxides were prepared from hydrotalcites bycalcination and were characterized by XRD, FTIR and AAS. The aim of work was to study the effect of Mg/Al mixed oxides properties such as Mg/Al mass ratio (2-4), the temperature of calcination (450-1000 °C), time of calcination (4-17 h) and post-treatment rehydration of mixed oxides on the activity of Mg/Al catalysts in the transesterification reaction. The results show that the highest catalytic activity was observed for Mg/Al catalysts with Mg/Al mass ratio of 3, calcination temperature of 450 °C, time of calcination of 8 hours and rehydration by water. The leaching of magnesium to liquid phase was also determined and was always less than 0.1 wt. % - the catalyst was stable.

Název v anglickém jazyce

Mg/Al MIXED OXIDES: PREPARATION, PROPERTIES AND CATALYTIC ACTIVITY IN TRANSESTERIFICATION OF RAPESEED OIL

Popis výsledku anglicky

This paper reviews the preparation, physicochemical properties and application of Mg/Al mixed oxides. Attention is focused on the activity of Mg/Al mixed oxides in transesterification of rapeseed oil. The mixed oxides were prepared from hydrotalcites bycalcination and were characterized by XRD, FTIR and AAS. The aim of work was to study the effect of Mg/Al mixed oxides properties such as Mg/Al mass ratio (2-4), the temperature of calcination (450-1000 °C), time of calcination (4-17 h) and post-treatment rehydration of mixed oxides on the activity of Mg/Al catalysts in the transesterification reaction. The results show that the highest catalytic activity was observed for Mg/Al catalysts with Mg/Al mass ratio of 3, calcination temperature of 450 °C, time of calcination of 8 hours and rehydration by water. The leaching of magnesium to liquid phase was also determined and was always less than 0.1 wt. % - the catalyst was stable.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP106%2F11%2F0773" target="_blank" >GAP106/11/0773: Analýza vztahu struktury a aktivity acido-bazických katalyzátorů v esterifikačních a transesterifikačních reakcích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Scientific Papers of the University of Pardubice, Series A, Faculty of Chemical Technology

ISSN

1211-5541

e-ISSN

—

Svazek periodika

18

Číslo periodika v rámci svazku

prosinec

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

14

Strana od-do

91-104

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—