SÍNTESE, CARACTERIZAÇÃO E ESTUDO DA ATIVIDADE CATALÍTICA DE PARTÍCULAS MAGNÉTICAS DE SrO/ CoFe2O4 FRENTE À REAÇÃO DE TRANSESTERIFICAÇÃO DO ÓLEO DE BABAÇU.
strontium oxide, cobalt ferrite, core/shell, transesterification, babassu oil.
A novel magnetic solid base SrO/CoFe2O4 was prepared with CoFe2O4 synthesized by co-precipitation as the magnetic core for impregnation of strontium oxide and was applied to the transesterification of babassu oil for the production of biodiesel. The catalysts were characterized by TG-DTA, XRD, SEM and FT-IR. It was demonstrated that SrO/CoFe2O4 has stronger magnetic strength and also morphology and structure reflect the nature of nanoparticle. The use of heterogeneous catalyst was very satisfactory showing yield up to 96% when synthesized in acetone and molar proportion SrO/CoFe2O4 5:1. The catalysts are easily recovered using a magnetic field allowing reuse it for up to three cycles.