Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP

Detalhes bibliográficos
Autor(a) principal: Nunes, Marta Regina dos Santos
Data de Publicação: 2008
Outros Autores: Martinelli, Marcia, Pedroso, Marcelo Monteiro
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/72874
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.
id UFRGS-2_8e1e8ca49e8873a944dee28f313f69e0
oai_identifier_str oai:www.lume.ufrgs.br:10183/72874
network_acronym_str UFRGS-2
network_name_str Repositório Institucional da UFRGS
repository_id_str
spelling Nunes, Marta Regina dos SantosMartinelli, MarciaPedroso, Marcelo Monteiro2013-07-02T01:43:17Z20080100-4042http://hdl.handle.net/10183/72874000682622The 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.application/pdfporQuímica nova. São Paulo. Vol. 31, n. 4 (jun. 2008), p. 818-821EpoxidaçãoÓleo de mamonaCatálise homogêneaEpoxidationCastor oilHeterogeneous systemEpoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHPEpoxidation of castor oil and its derivatives using vo(acac)2/tbhp as the catalytic system info:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000682622.pdf000682622.pdfTexto completoapplication/pdf83686http://www.lume.ufrgs.br/bitstream/10183/72874/1/000682622.pdfbb6034eda891ec9781c2e6edf69d9a21MD51TEXT000682622.pdf.txt000682622.pdf.txtExtracted Texttext/plain22035http://www.lume.ufrgs.br/bitstream/10183/72874/2/000682622.pdf.txtb4c672708c1ead7d9f9e33360235d390MD52THUMBNAIL000682622.pdf.jpg000682622.pdf.jpgGenerated Thumbnailimage/jpeg1954http://www.lume.ufrgs.br/bitstream/10183/72874/3/000682622.pdf.jpgb8fac94330140f491e1e3a82acbf380bMD5310183/728742018-10-15 08:10:52.5oai:www.lume.ufrgs.br:10183/72874Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-15T11:10:52Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP
dc.title.alternative.en.fl_str_mv Epoxidation of castor oil and its derivatives using vo(acac)2/tbhp as the catalytic system
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
Epoxidação
Óleo de mamona
Catálise homogênea
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 Epoxidação
Óleo de mamona
Catálise homogênea
topic Epoxidação
Óleo de mamona
Catálise homogênea
Epoxidation
Castor oil
Heterogeneous system
dc.subject.eng.fl_str_mv 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.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2013-07-02T01:43:17Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/other
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/72874
dc.identifier.issn.pt_BR.fl_str_mv 0100-4042
dc.identifier.nrb.pt_BR.fl_str_mv 000682622
identifier_str_mv 0100-4042
000682622
url http://hdl.handle.net/10183/72874
dc.language.iso.fl_str_mv por
language por
dc.relation.ispartof.pt_BR.fl_str_mv Química nova. São Paulo. Vol. 31, n. 4 (jun. 2008), p. 818-821
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
bitstream.url.fl_str_mv http://www.lume.ufrgs.br/bitstream/10183/72874/1/000682622.pdf
http://www.lume.ufrgs.br/bitstream/10183/72874/2/000682622.pdf.txt
http://www.lume.ufrgs.br/bitstream/10183/72874/3/000682622.pdf.jpg
bitstream.checksum.fl_str_mv bb6034eda891ec9781c2e6edf69d9a21
b4c672708c1ead7d9f9e33360235d390
b8fac94330140f491e1e3a82acbf380b
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)
repository.mail.fl_str_mv
_version_ 1815447497898721280

Registros relacionados