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

;Sandro Froehner;Juliana Leithold;Luiz Fernando Lima Júnior
greece and rome 2007 Vol. 30 pp. 2016-2019
147
froehner2007qumicatransesterificao

Abstract

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.

Keywords

vegetable oils

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DOI:
10.1590/S0100-40422007000800037
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http://www.scielo.br/scielo.php?script=sci_arttext...

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