Montmorilonita modificada como catalisador heterogêneo em reações de esterificação (m)etílica de ácido láurico

Química Nova

Leandro Zatta¹  Angelita Nepel¹  Andersson Barison¹  Fernando Wypych¹ 

[1] ,Universidade Federal do Paraná Departamento de Química Curitiba PR ,Brasil

关键词: biodiesel;    esterification;    montmorillonite;   

DOI  :  10.1590/S0100-40422012000900002

来源: SciELO

【 摘 要 】

ABSTRACT Montmorillonite was modified with zirconium polyoxycations in the presence of ammonium sulphate. The material was characterized and used as a catalyst in the esterification of lauric acid, the reactions being accompanied by 2³ factorial design. Conversions of up to 95.33 and 83.35% were observed for the methyl and ethyl esterification reactions respectively, proving superior to results obtained by thermal conversion. The material was submitted to three reaction cycles and similar conversions were observed, indicating the catalyst is not significantly deactivated after reuse. The catalyst was also tested under reflux conditions, yielding a maximum conversion of 36.86%.

【 授权许可】

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