2006•Biomass Chemical EngineeringRequires access
Study on the Esterification of Rosin under Microwave Radiation
Cai Zhi-hui
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Abstract
The effects of alcohol dosage,microwave power and reaction time on the esterification of rosin under microwave radiation using zinc oxide as a catalyst were studied.Dodecanol rosinate with acid value 8.1 mg/g,softening point 98.3℃ and ethylene(glycol) rosinate with acid value 11.2 mg/g,softening point 83.2℃ were prepared under 800W microwave radiation for 80 min with the molar ratio of rosin to dodecanol 1 ∶1.5 and the molar ratio of rosin to glycol 1 ∶0.65.