Solvent free synthesis of methyl palmitate over sulfated zirconia solid acid catalyst

FUEL

卷:165

Article

Tyagi, Beena¹ 

[1] Cent Salt & Marine Chem Res Inst, CSIR, Div Inorgan Mat & Catalysis, Bhavnagar 364002, Gujarat, India

关键词: Esterification;    Palmitic acid;    Methyl palmitate;    Solid acid catalyst;    Sulfated zirconia;   

DOI  :  10.1016/j.fuel.2015.10.043

来源: Elsevier

【 摘 要 】

Sulfated zirconia (SZr) solid acid catalyst, prepared by conventional precipitation technique was studied for esterification of palmitic acid with methanol to synthesize methyl palmitate. The catalyst exhibited 90% yield of methyl palmitate at 60 degrees C over 6 wt% catalyst. The yield was significantly higher under solvent-free conditions than using hexane as a solvent. The alkyl palmitate yield was decreased with an increase in the alkyl chain of alcohol from methanol to n-butanol. The reaction followed pseudo-first order kinetics under the optimized reaction conditions with a reaction rate of 0.61 mmol h(-1), rate constant of 12.13 x 10(-3) h(-1) and turn over frequency of 0.088 min(-1). (C) 2015 Elsevier Ltd. All rights reserved.

【 授权许可】

Free