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Citation: YANG Ze-Heng, GUI Bin, ZHOU Chen-Xu, LIU Teng. Preparation of ZnMn₂O₄ Nano-catalyst and Its Application in Synthesis of n-Butyl Acetate[J]. Chinese Journal of Applied Chemistry, ;2009, 26(11): 1315-1319. shu

Preparation of ZnMn₂O₄ Nano-catalyst and Its Application in Synthesis of n-Butyl Acetate

1.
College of Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering, Hefei 230009

Corresponding author: YANG Ze-Heng,
Received Date: 23 October 2008
Available Online: 15 February 2009
Fund Project: 国家自然科学基金(20576024,20876031) (20576024,20876031)安徽省自然科学基金(070414165)资助项目 (070414165)

A zinc manganese oxide nano-catalyst was synthesized by a co-precipitation method.X-ray diffraction(XRD) and transmission electron microscopy(TEM) results indicate that the sample can be indexed to tetragonal ZnMn₂O₄ and the particle size ranges from 20 to 50 nm.The obtained ZnMn₂O₄ nanoparticles were used as a catalyst for the esterification reaction between acetic acid and n-butanol.The experimental results show that ZnMn₂O₄ nanoparticles had a high catalytic activity on the synthesis of n-butyl acetate.The influential factors including catalyst calcination temperature,acid-to-alcohol molar ratio,dosage of the catalyst and reaction time on the yield of n-butyl acetate were also investigated,and the maximal esterification rate of up to 92.53% was achieved under the following conditions: catalyst calcination temperature=300 ℃,n(acid):n(alcohol)=1.8:1,the dosage of the ZnMn₂O₄ catalyst is 0.3%(in total mass of reactants),reaction time is 4 h and esterification reaction temperature is 120 ℃.
- co-precipitation,
- ZnMn₂O₄,
- catalysis,
- n-butyl acetate
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Preparation of ZnMn₂O₄ Nano-catalyst and Its Application in Synthesis of n-Butyl Acetate