Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000400021 |
Resumo: | The alternative system VO(acac)2/TBHP was investigated for the epoxidation reaction of castor oil and its derivatives. Results of 88% of conversion, 73% of epoxidation and 82% of selectivity were obtained for the system containing 20% excess of TBHP and 1% of VO(acac)2 catalyst, during 3 h under toluene reflux. The product was characterized by GC/MS as methyl-cis-9, 10-epoxi, 12-hydroxystearate and quantitative ¹H NMR was used to calculate the data above. Preliminary results indicate that the heterogeneous system VO(acac)2 grafted on K10 clay can also promote epoxidation of castor oil. |
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Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHPepoxidationcastor oilheterogeneous systemThe alternative system VO(acac)2/TBHP was investigated for the epoxidation reaction of castor oil and its derivatives. Results of 88% of conversion, 73% of epoxidation and 82% of selectivity were obtained for the system containing 20% excess of TBHP and 1% of VO(acac)2 catalyst, during 3 h under toluene reflux. The product was characterized by GC/MS as methyl-cis-9, 10-epoxi, 12-hydroxystearate and quantitative ¹H NMR was used to calculate the data above. Preliminary results indicate that the heterogeneous system VO(acac)2 grafted on K10 clay can also promote epoxidation of castor oil.Sociedade Brasileira de Química2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000400021Química Nova v.31 n.4 2008reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422008000400021info:eu-repo/semantics/openAccessNunes,Marta Regina dos SantosMartinelli,MarciaPedroso,Marcelo Monteiropor2008-06-16T00:00:00Zoai:scielo:S0100-40422008000400021Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2008-06-16T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP |
title |
Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP |
spellingShingle |
Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP Nunes,Marta Regina dos Santos epoxidation castor oil heterogeneous system |
title_short |
Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP |
title_full |
Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP |
title_fullStr |
Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP |
title_full_unstemmed |
Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP |
title_sort |
Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP |
author |
Nunes,Marta Regina dos Santos |
author_facet |
Nunes,Marta Regina dos Santos Martinelli,Marcia Pedroso,Marcelo Monteiro |
author_role |
author |
author2 |
Martinelli,Marcia Pedroso,Marcelo Monteiro |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Nunes,Marta Regina dos Santos Martinelli,Marcia Pedroso,Marcelo Monteiro |
dc.subject.por.fl_str_mv |
epoxidation castor oil heterogeneous system |
topic |
epoxidation castor oil heterogeneous system |
description |
The alternative system VO(acac)2/TBHP was investigated for the epoxidation reaction of castor oil and its derivatives. Results of 88% of conversion, 73% of epoxidation and 82% of selectivity were obtained for the system containing 20% excess of TBHP and 1% of VO(acac)2 catalyst, during 3 h under toluene reflux. The product was characterized by GC/MS as methyl-cis-9, 10-epoxi, 12-hydroxystearate and quantitative ¹H NMR was used to calculate the data above. Preliminary results indicate that the heterogeneous system VO(acac)2 grafted on K10 clay can also promote epoxidation of castor oil. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000400021 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000400021 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.1590/S0100-40422008000400021 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Química Nova v.31 n.4 2008 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318107606384640 |