Ação promotora do zinco em catalisadores de síntese do estireno

Bibliographic Details
Main Author: Leite, Hugo Ernane Bonfim
Publication Date: 2004
Other Authors: Oliveira, Alcineia Conceição, Varela, Maria do Carmo Rangel Santos
Format: Article
Language: por
Source: Repositório Institucional da UFBA
Download full: http://www.repositorio.ufba.br/ri/handle/ri/4842
Summary: p. 247-250,Mar/Apr.
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spelling Leite, Hugo Ernane BonfimOliveira, Alcineia ConceiçãoVarela, Maria do Carmo Rangel SantosLeite, Hugo Ernane BonfimOliveira, Alcineia ConceiçãoVarela, Maria do Carmo Rangel Santos2011-12-14T10:49:09Z2011-12-14T10:49:09Z20040100-4042http://www.repositorio.ufba.br/ri/handle/ri/4842v. 27, n. 2.p. 247-250,Mar/Apr.Ethylbenzene dehydrogenation in the presence of steam is the main commercial route to produce styrene. The industrial catalyst is chromium and potassium-doped hematite, which easily deactivates with time due to potassium loss. In order to find non-toxic and potassium free catalysts, the promoter action of zinc on hematite was studied in this work. It was found that zinc acts as structural promoter by stabilizing the Fe3+ species (active phase) as maghemite. Although it decreases the specific surface area, it increases four times the catalytic activity as compared to hematite.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2011-12-14T10:49:09Z No. of bitstreams: 1 19270.pdf: 225858 bytes, checksum: 7499c35d8fecbdb615b128256432acad (MD5)Made available in DSpace on 2011-12-14T10:49:09Z (GMT). No. of bitstreams: 1 19270.pdf: 225858 bytes, checksum: 7499c35d8fecbdb615b128256432acad (MD5) Previous issue date: 2004São Paulohttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422004000200014&lng=en&nrm=isoreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAHematiteStyreneEthylbenzene dehydrogenationAção promotora do zinco em catalisadores de síntese do estirenoQuímica Novainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleporinfo:eu-repo/semantics/openAccessORIGINAL19270.pdf19270.pdfapplication/pdf225858https://repositorio.ufba.br/bitstream/ri/4842/1/19270.pdf7499c35d8fecbdb615b128256432acadMD51LICENSElicense.txtlicense.txttext/plain1809https://repositorio.ufba.br/bitstream/ri/4842/2/license.txt8bb3e3eb871f5854a9ec419f68651b60MD52TEXT19270.pdf.txt19270.pdf.txtExtracted texttext/plain19123https://repositorio.ufba.br/bitstream/ri/4842/3/19270.pdf.txtc1dcd952f663560b465f826c1831225dMD53ri/48422022-07-05 14:03:28.232oai:repositorio.ufba.br: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ório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestrepositorio@ufba.bropendoar:19322022-07-05T17:03:28Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Ação promotora do zinco em catalisadores de síntese do estireno
dc.title.alternative.pt_BR.fl_str_mv Química Nova
title Ação promotora do zinco em catalisadores de síntese do estireno
spellingShingle Ação promotora do zinco em catalisadores de síntese do estireno
Leite, Hugo Ernane Bonfim
Hematite
Styrene
Ethylbenzene dehydrogenation
title_short Ação promotora do zinco em catalisadores de síntese do estireno
title_full Ação promotora do zinco em catalisadores de síntese do estireno
title_fullStr Ação promotora do zinco em catalisadores de síntese do estireno
title_full_unstemmed Ação promotora do zinco em catalisadores de síntese do estireno
title_sort Ação promotora do zinco em catalisadores de síntese do estireno
author Leite, Hugo Ernane Bonfim
author_facet Leite, Hugo Ernane Bonfim
Oliveira, Alcineia Conceição
Varela, Maria do Carmo Rangel Santos
author_role author
author2 Oliveira, Alcineia Conceição
Varela, Maria do Carmo Rangel Santos
author2_role author
author
dc.contributor.author.fl_str_mv Leite, Hugo Ernane Bonfim
Oliveira, Alcineia Conceição
Varela, Maria do Carmo Rangel Santos
Leite, Hugo Ernane Bonfim
Oliveira, Alcineia Conceição
Varela, Maria do Carmo Rangel Santos
dc.subject.por.fl_str_mv Hematite
Styrene
Ethylbenzene dehydrogenation
topic Hematite
Styrene
Ethylbenzene dehydrogenation
description p. 247-250,Mar/Apr.
publishDate 2004
dc.date.issued.fl_str_mv 2004
dc.date.accessioned.fl_str_mv 2011-12-14T10:49:09Z
dc.date.available.fl_str_mv 2011-12-14T10:49:09Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/4842
dc.identifier.issn.none.fl_str_mv 0100-4042
dc.identifier.number.pt_BR.fl_str_mv v. 27, n. 2.
identifier_str_mv 0100-4042
v. 27, n. 2.
url http://www.repositorio.ufba.br/ri/handle/ri/4842
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422004000200014&lng=en&nrm=iso
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
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