Modified montmorillonite as a heterogeneous catalyst in (m)ethyl esterification reaction of lauric acid

Química Nova

Nepel, Angelita¹  Barison, Andersson¹  Wypych, Fernando¹  Zatta, Leandro¹  Universidade Federal do Paraná, Curitiba, Brasil¹ 

关键词: biodiesel;    esterification;    montmorillonite.;   

DOI  :  10.1590/S0100-40422012000900002

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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】

Unknown