Campo DC | Valor | Idioma |
dc.contributor.author | Leite, Hugo Ernane Bonfim | - |
dc.contributor.author | Oliveira, Alcineia Conceição | - |
dc.contributor.author | Varela, Maria do Carmo Rangel Santos | - |
dc.creator | Leite, Hugo Ernane Bonfim | - |
dc.creator | Oliveira, Alcineia Conceição | - |
dc.creator | Varela, Maria do Carmo Rangel Santos | - |
dc.date.accessioned | 2011-12-14T10:49:09Z | - |
dc.date.available | 2011-12-14T10:49:09Z | - |
dc.date.issued | 2004 | - |
dc.identifier.issn | 0100-4042 | - |
dc.identifier.uri | http://www.repositorio.ufba.br/ri/handle/ri/4842 | - |
dc.description | p. 247-250,Mar/Apr. | pt_BR |
dc.description.abstract | 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. | pt_BR |
dc.language.iso | pt_BR | pt_BR |
dc.source | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422004000200014&lng=en&nrm=iso | pt_BR |
dc.subject | Hematite | pt_BR |
dc.subject | Styrene | pt_BR |
dc.subject | Ethylbenzene dehydrogenation | pt_BR |
dc.title | Ação promotora do zinco em catalisadores de síntese do estireno | pt_BR |
dc.title.alternative | Química Nova | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.description.localpub | São Paulo | pt_BR |
dc.identifier.number | v. 27, n. 2. | pt_BR |
Aparece nas coleções: | Artigo Publicado em Periódico (Química)
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