Study on effect of hydroxyl group on lubrication properties of palm based trimetylolpropane esters: Development of synthesis method

Citation

Abu Bakar, Anita and Yunus, Robiah and Abdullah, Luqman Chuah and Ahmadun, Fakhru'l-Razi (2007) Study on effect of hydroxyl group on lubrication properties of palm based trimetylolpropane esters: Development of synthesis method. Journal of Applied Sciences, 7 (15). pp. 2011-2014. ISSN 1812-5654; ESSN: 1812-5662

Abstract

Some concerns have been raised regarding the oxidative stability of vegetable oil-base fluids. Thus, wide ranges of palm-based trimethylolpropane esters, which contain different percentages of partial esters, were synthesized. The palm-based TMP were esterified from Palm Oil Methyl Esters (POME) with trimethylolpropane [2-ethyl-2-(hydroxymethyl)-1,3-propanediol;TMP] and sodium methoxide (CH3ONa) as catalyst. Quantification of methyl esters, mono, di- and tri-TMP esters were performed using a gas chromatography (GC), with a high temperature capillary column (SGE HT5), operated at a temperature gradient of 6°C min-1 starting from 80 to 340°C. The influence of operating variables (temperature, pressure, molar ratio of palm methyl esters to TMP and catalyst amount) on diesters formation was studied and analyzed. Palm oil TMP ester containing 10-30% partial esters (monoesters and diesters) was successfully synthesized.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Engineering
Publisher:	Asian Network for Scientific Information
Keywords:	Partial esters; Transesterification; Gas chromatography; Metyl esters.
Depositing User:	kmportal
Date Deposited:	06 Jan 2014 01:44
Last Modified:	08 Dec 2015 09:04
URI:	http://psasir.upm.edu.my/id/eprint/16881
Statistic Details:	View Download Statistic

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