Comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts

The application of homogenous and heterogeneous catalysts for ethoxylation of lauric acid (LAc) with ethylene oxide (EO) was conducted in this study. Ethoxylation reaction of LAc with EO with the mole ratio 1:3 (LAc:EO) have been done at reaction temperature 130-135 oC under 1.8 bar pressure to prod...

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Main Authors:	Zarina Edris, Norhafipah Mohamad, Mohd Ambar Yarmo
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2010
Online Access:	http://journalarticle.ukm.my/7403/ http://journalarticle.ukm.my/7403/ http://journalarticle.ukm.my/7403/1/01_Md_Yeaminhossain.pdf

id	ukm-7403
recordtype	eprints
spelling	ukm-74032016-12-14T06:43:58Z http://journalarticle.ukm.my/7403/ Comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts Zarina Edris, Norhafipah Mohamad, Mohd Ambar Yarmo, The application of homogenous and heterogeneous catalysts for ethoxylation of lauric acid (LAc) with ethylene oxide (EO) was conducted in this study. Ethoxylation reaction of LAc with EO with the mole ratio 1:3 (LAc:EO) have been done at reaction temperature 130-135 oC under 1.8 bar pressure to produce Ethoxylated Lauric Acid (LAc:3EO), a type of nonionic surfactant. This experiment showed that potassium tert-butoxide (tBuOK) as a base homogenous catalyst gave good selectivity and activity compared with potassium methoxide, potassium ethoxide and potassium butoxide. Studies on intercalation of hydrotalcite (HT) with tBuO- to form HTtBuO as solid base catalyst was conducted. Ethoxylation reaction using heterogenous catalyst based on intercalated of HT-tBuO gave lower activity compared with tBuOK as homogenous catalyst. This might be due to diffusion which occurred significantly in heterogenous catalyst compared with homogenous catalyst. Analysis of nonionic surfactant LAc:3EO using HTtBuO as a catalyst gave no undesired side product. Detail analysis of the reaction products using GC-Tof technique gave a mixture of ester of LAc:3EO and polyethylene glycol (PEG). Universiti Kebangsaan Malaysia 2010-10 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7403/1/01_Md_Yeaminhossain.pdf Zarina Edris, and Norhafipah Mohamad, and Mohd Ambar Yarmo, (2010) Comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts. Sains Malaysiana, 39 (5). pp. 765-768. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol39num5_2010/contentsVol39num5_2010.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The application of homogenous and heterogeneous catalysts for ethoxylation of lauric acid (LAc) with ethylene oxide (EO) was conducted in this study. Ethoxylation reaction of LAc with EO with the mole ratio 1:3 (LAc:EO) have been done at reaction temperature 130-135 oC under 1.8 bar pressure to produce Ethoxylated Lauric Acid (LAc:3EO), a type of nonionic surfactant. This experiment showed that potassium tert-butoxide (tBuOK) as a base homogenous catalyst gave good selectivity and activity compared with potassium methoxide, potassium ethoxide and potassium butoxide. Studies on intercalation of hydrotalcite (HT) with tBuO- to form HTtBuO as solid base catalyst was conducted. Ethoxylation reaction using heterogenous catalyst based on intercalated of HT-tBuO gave lower activity compared with tBuOK as homogenous catalyst. This might be due to diffusion which occurred significantly in heterogenous catalyst compared with homogenous catalyst. Analysis of nonionic surfactant LAc:3EO using HTtBuO as a catalyst gave no undesired side product. Detail analysis of the reaction products using GC-Tof technique gave a mixture of ester of LAc:3EO and polyethylene glycol (PEG).
format	Article
author	Zarina Edris, Norhafipah Mohamad, Mohd Ambar Yarmo,
spellingShingle	Zarina Edris, Norhafipah Mohamad, Mohd Ambar Yarmo, Comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts
author_facet	Zarina Edris, Norhafipah Mohamad, Mohd Ambar Yarmo,
author_sort	Zarina Edris,
title	Comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts
title_short	Comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts
title_full	Comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts
title_fullStr	Comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts
title_full_unstemmed	Comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts
title_sort	comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts
publisher	Universiti Kebangsaan Malaysia
publishDate	2010
url	http://journalarticle.ukm.my/7403/ http://journalarticle.ukm.my/7403/ http://journalarticle.ukm.my/7403/1/01_Md_Yeaminhossain.pdf
first_indexed	2023-09-18T19:49:36Z
last_indexed	2023-09-18T19:49:36Z
_version_	1777406130316640256

Comparison studies on lauric acid ethoxylated using homogenous and heterogenous catalysts

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