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Transesterificação de óleos vegetais: caracterização por cromatografia em camada delgada e densidade Transesterification of vegetable oils: characterization by thin-layer cromatography and density

By Sandro Froehner, Juliana Leithold and Luiz Fernando Lima Júnior

Abstract

<abstract language="eng">We studied the transesterification of two vegetable oils: soybean and waste frying oil. The main problem of transesterification is related to the measurement of the ethyl ester content. In this work we used a quick analytical method for assessing the ethyl ester fraction of the purified fuel-grade transesterification products by applying a simple correlation with density. If the ester content is higher than 85% by weight the correlation allows the determination by a single density measurement. This method is suitable for control and determines the ethyl ester quickly and simply

Topics: ethyl esters, vegetable oils, biodiesel, Chemistry, QD1-999, Science, Q, DOAJ:Chemistry (General), DOAJ:Chemistry
Publisher: Sociedade Brasileira de Química
Year: 2007
DOI identifier: 10.1590/S0100-40422007000800037
OAI identifier: oai:doaj.org/article:223d181e3b34474d8c03e333ed1a2242
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