Avaliação da natureza da atividade catalítica de compostos de bismuto em reações de metanólise do óleo de soja

Química Nova

Fabiano Rosa Da Silva¹  Ricardo José Brugnago¹  Rafael Marangoni¹  Claudiney Soares Cordeiro¹  Shirley Nakagaki¹  Fernando Wypych¹  Luiz Pereira Ramos¹ 

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

关键词: biodiesel;    bismuth;    transesterification;   

DOI  :  10.1590/S0100-40422012000100020

来源: SciELO

【 摘 要 】

Sodium bismuthate dihydrate and two species derived from its thermal treatment were investigated as catalysts for soybean oil methanolysis and, regardless of the type of solid used, ester yields always above 76 wt% were obtained. After a single reaction course, both liquid and solid phases were characterized using several analytical methods such as X-ray diffraction and thermogravimetric analysis. As a result, the catalytic phenomenon was shown to be solely due to the leaching of alkalinecatalytic species from the solid materials.

【 授权许可】

CC BY-NC   
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