US EPA

8172073 

Journal Article 

Reaction conditions and kinetics in synthesis of benzyl acetate by ultrasound 

Wang, J; Chen, X; Lv, X; Han, P 

2011 

Chk 

Huaxue Fanying Gongcheng yu Gongyi / Chemical Reactive Engineering and Technology
ISSN: 1001-7631 

27 

2 

172-177 

Chinese 

Benzyl acetate was synthesized from acetic and benzyl alcohol using concentrated sulfuric acid as catalyst under ultrasonic radiation. The effects of ultrasonic frequency, ultrasonic intensity, reaction temperature, catalyst dosage, water-carrying agent and water-carrying agent dosage on the esterification were investigated. The kinetics of synthesis of benzyl acetate was studied under ultrasonic radiation or not. The results showed that the esterification reached 93.7% under the conditions of ultrasonic frequency 10 kHz, ultrasonic intensity 10 W/cm, molar ratio of benzyl alcohol to acetate 1.5:1, catalyst dosage 2.0 mL, toluene(water-canying agent) 20 mL, reaction temperature 120°C and reaction time 90 min. Ultrasound could reduce activation energy of synthesis of benzyl acetate from 89.46 kJ/mol to 73.46 kJ/mol. 

Acetic; Benzyl acetate; Benzyl alcohol; Concentrated sulfuric acid; Esterification; Kinetics; Ultrasound