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BIBTEX RIS

Esterificação de ácidos graxos utilizando zircônia sulfatada e compósitos carvão ativado/zircônia sulfatada como catalisadores

2011; Brazilian Chemical Society; Volume: 34; Issue: 9 Linguagem: Inglês

10.1590/s0100-40422011000900006

ISSN

1678-7064

Autores

Sarah Silva Brum, Valéria C. Santos‐Ebinuma, Priscila Destro, Mário César Guerreiro,

Tópico(s)

Chemistry and Chemical Engineering

Resumo

COMPOSITES ACTIVATED CARBON / SULFATED ZIRCONIA CATALYSTS.In this work sulfated zirconia (SZr) and activated carbon/SZr composites produced by impregnation method with or without heating treatment step (CABC/SZr-I and CABC/SZr-I SC) and by the method of synthesis of SZr on the carbon (CABC/SZr-S) was used as catalysts in the esterification reactions of fatty acids.The SZr presented very active, conversions higher than 90% were obtained after 2 h of reaction.The activity of the composite CABC/SZr-I20%SC was up to 92%, however, this was directly related to time and temperature reactions.CABC/SZr-I and CABC/SZr-S were less active in esterification reactions, what could be attributed to its low acidity.

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