Esterification of lauric acid with butanol-1 over H₃PW₁₂O₄₀ supported on MCM-41
2012
Brahmkhatri, Varsha | Patel, Anjali
Heterogeneous acid catalyst comprising 12-tungstophosphoric acid and MCM-41 was synthesized and characterized by surface area measurement (BET method), X-ray diffraction (XRD) and solid state ³¹P MAS–NMR. The catalytic activity was evaluated for esterification of fatty acid, lauric acid with 1-butanol. Influence of various reaction parameters such as catalyst concentration, acid/alcohol molar ratio and reaction time were studied to optimize the conditions for maximum yields. Also the catalyst was recovered and reused up to four cycles. A study on the kinetic behaviour was carried out by classical method and it was found that esterification of lauric acid follows second order rate law. The influence of temperature on rate constant was also studied and the activation energy was found to be 78kJmol⁻¹.
显示更多 [+] 显示较少 [-]