2009•Unpublished venueRequires access
Study on catalytic synthesis of palmitic acid 2-ethylhexyl ester
Aihua Zhang
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Abstract
Nanosized solid superacid SO2-4/CoFe2O4 was prepared with Fe(NO3)3 and Co(NO3)2 as materials.The spectrum of TEM indicated that self-synthetical catalyst particle size was approximately 20~50nm.Effects of(NH4)2SO4 concentration,calcination temperature and calcination time on catalytic activity.of nanosized solid superacid were studied.The palmitic acid 2-ethylhexyl ester was synthesized with palmitic acid and iso-octanol by nanosized solid superacid SO2-4/CoFe2O4.The main influential factors of reaction were investigated.The optimal reaction conditions were obtained as follows:the molar ratio of iso-octanol to palmitic acid was 2.0∶1,the dosage of catalyst was 0.5%(based on total mass of reactants),reaction time was 3.0h and water-carrying reagent was added.Under these condition,the yield of palmitic acid 2-ethylhexyl ester could reach 97.4 %.