Catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalysts

Catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalysts

The p-phenylenediamine (PDA) and dithiooxamide (DTO) were immobilized onto silica from rice husk ash (RHA) using 3-chloropropyltriethoxyilane (CPTES) to form a solid catalyst denoted as RHAPDA and RHADTO, respectively. BET measurements of the catalysts showed the surface area to be 145 and 9.7 m2 g−...

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Main Authors: Thana Jaafar Al-Hasani, Hayder Hamied Mihsen, Kasim Mohammed Hello, Farook Adam
Format: Article
Language:English
Published: Elsevier 2017-02-01
Series:Arabian Journal of Chemistry
Subjects:
Rice husk ash
Surface modification
Dithiooxamide
p-Phenylenediamine
Esterification
Online Access:http://www.sciencedirect.com/science/article/pii/S1878535213001196
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spelling doaj-6ecd431ba1364bbb8e117db8ad6c60dc2020-11-25T00:28:50ZengElsevierArabian Journal of Chemistry1878-53522017-02-0110S1S1492S150010.1016/j.arabjc.2013.04.030Catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalystsThana Jaafar Al-Hasani0Hayder Hamied Mihsen1Kasim Mohammed Hello2Farook Adam3Chemistry Department, College of Science, Baghdad University, IraqChemistry Department, College of Science, Karbala University, IraqChemistry Department, College of Science, Al-Muthanna University, IraqSchool of Chemical Sciences, University Sains Malaysia, 11800 Penang, MalaysiaThe p-phenylenediamine (PDA) and dithiooxamide (DTO) were immobilized onto silica from rice husk ash (RHA) using 3-chloropropyltriethoxyilane (CPTES) to form a solid catalyst denoted as RHAPDA and RHADTO, respectively. BET measurements of the catalysts showed the surface area to be 145 and 9.7 m2 g−1 with an average pore diameter of 9.8 and 10.9 nm, respectively. The catalytic performance of RHAPDA and RHADTO was tested in the esterification of ethyl alcohol with acetic acid. A conversion of 48% and 69% was achieved, respectively with 100% selectivity toward ethyl acetate.http://www.sciencedirect.com/science/article/pii/S1878535213001196Rice husk ashSurface modificationDithiooxamidep-PhenylenediamineEsterification
collection DOAJ
language English
format Article
sources DOAJ
author Thana Jaafar Al-Hasani
Hayder Hamied Mihsen
Kasim Mohammed Hello
Farook Adam
spellingShingle Thana Jaafar Al-Hasani
Hayder Hamied Mihsen
Kasim Mohammed Hello
Farook Adam
Catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalysts
Arabian Journal of Chemistry
Rice husk ash
Surface modification
Dithiooxamide
p-Phenylenediamine
Esterification
author_facet Thana Jaafar Al-Hasani
Hayder Hamied Mihsen
Kasim Mohammed Hello
Farook Adam
author_sort Thana Jaafar Al-Hasani
title Catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalysts
title_short Catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalysts
title_full Catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalysts
title_fullStr Catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalysts
title_full_unstemmed Catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalysts
title_sort catalytic esterification via silica immobilized p-phenylenediamine and dithiooxamide solid catalysts
publisher Elsevier
series Arabian Journal of Chemistry
issn 1878-5352
publishDate 2017-02-01
description The p-phenylenediamine (PDA) and dithiooxamide (DTO) were immobilized onto silica from rice husk ash (RHA) using 3-chloropropyltriethoxyilane (CPTES) to form a solid catalyst denoted as RHAPDA and RHADTO, respectively. BET measurements of the catalysts showed the surface area to be 145 and 9.7 m2 g−1 with an average pore diameter of 9.8 and 10.9 nm, respectively. The catalytic performance of RHAPDA and RHADTO was tested in the esterification of ethyl alcohol with acetic acid. A conversion of 48% and 69% was achieved, respectively with 100% selectivity toward ethyl acetate.
topic Rice husk ash
Surface modification
Dithiooxamide
p-Phenylenediamine
Esterification
url http://www.sciencedirect.com/science/article/pii/S1878535213001196
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AT hayderhamiedmihsen catalyticesterificationviasilicaimmobilizedpphenylenediamineanddithiooxamidesolidcatalysts
AT kasimmohammedhello catalyticesterificationviasilicaimmobilizedpphenylenediamineanddithiooxamidesolidcatalysts
AT farookadam catalyticesterificationviasilicaimmobilizedpphenylenediamineanddithiooxamidesolidcatalysts
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