The oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk

Chromium was incorporated into the silica matrix extracted from rice husk in basic, neutral and acidic medium. The prepared catalysts were labeled as RHCr-10, RHCr-7 and RHCr-3 according to their pH. The specific surface area of RHCr-10, RHCr-7 and RHCr-3 was determined to be 144, 143 and 564 m2 g−1...

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Main Authors:	Adam, Farook, Mohamed Iqbal, Mohammad Anwar
Format:	Article
Language:	English
Published:	Elsevier 2010
Subjects:	QD Chemistry
Online Access:	http://irep.iium.edu.my/22278/ http://irep.iium.edu.my/22278/ http://irep.iium.edu.my/22278/ http://irep.iium.edu.my/22278/1/Chemical_Engineering_Journal_160_%282010%29_742%E2%80%93750.pdf

id	iium-22278
recordtype	eprints
spelling	iium-222782012-05-17T04:08:53Z http://irep.iium.edu.my/22278/ The oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk Adam, Farook Mohamed Iqbal, Mohammad Anwar QD Chemistry Chromium was incorporated into the silica matrix extracted from rice husk in basic, neutral and acidic medium. The prepared catalysts were labeled as RHCr-10, RHCr-7 and RHCr-3 according to their pH. The specific surface area of RHCr-10, RHCr-7 and RHCr-3 was determined to be 144, 143 and 564 m2 g−1, respectively. The XRD results showed the catalysts to be amorphous. RHCr-3 showed better catalytic activity with 99.92% conversion of styrene. Benzaldehyde was the major product with styrene oxide, phenyl acetaldehyde, acetophenone, 1-phenylethanol, phenylglyoxal, styrene glycol and benzoic acid as by-products. Leaching of chromium was minimal and RHCr-3 could be recycled several times. Elsevier 2010-04-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/22278/1/Chemical_Engineering_Journal_160_%282010%29_742%E2%80%93750.pdf Adam, Farook and Mohamed Iqbal, Mohammad Anwar (2010) The oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk. Chemical Engineering Journal, 160 (2). pp. 742-750. ISSN 1385-8947/$ http://www.sciencedirect.com/science/article/pii/S1385894710003293 http://dx.doi.org/10.1016/j.cej.2010.04.003
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Adam, Farook Mohamed Iqbal, Mohammad Anwar The oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk
description	Chromium was incorporated into the silica matrix extracted from rice husk in basic, neutral and acidic medium. The prepared catalysts were labeled as RHCr-10, RHCr-7 and RHCr-3 according to their pH. The specific surface area of RHCr-10, RHCr-7 and RHCr-3 was determined to be 144, 143 and 564 m2 g−1, respectively. The XRD results showed the catalysts to be amorphous. RHCr-3 showed better catalytic activity with 99.92% conversion of styrene. Benzaldehyde was the major product with styrene oxide, phenyl acetaldehyde, acetophenone, 1-phenylethanol, phenylglyoxal, styrene glycol and benzoic acid as by-products. Leaching of chromium was minimal and RHCr-3 could be recycled several times.
format	Article
author	Adam, Farook Mohamed Iqbal, Mohammad Anwar
author_facet	Adam, Farook Mohamed Iqbal, Mohammad Anwar
author_sort	Adam, Farook
title	The oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk
title_short	The oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk
title_full	The oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk
title_fullStr	The oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk
title_full_unstemmed	The oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk
title_sort	oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk
publisher	Elsevier
publishDate	2010
url	http://irep.iium.edu.my/22278/ http://irep.iium.edu.my/22278/ http://irep.iium.edu.my/22278/ http://irep.iium.edu.my/22278/1/Chemical_Engineering_Journal_160_%282010%29_742%E2%80%93750.pdf
first_indexed	2023-09-18T20:34:00Z
last_indexed	2023-09-18T20:34:00Z
_version_	1777408924353298432

The oxidation of styrene by chromium–silica heterogeneous catalyst prepared from rice husk

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