Ren Yue
2010
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Journal
Chinese Journal of Spectroscopy Laboratory
Abstract
Three kinds of tungstozincic heteropoly acid complexes with Keggin structure,such as K8[FeZnW11O39(H2O)],K8[NiZnW11O39(H2O)],K8[CoZnW11O39(H2O)],were synthesized.Ethyl heptanoate was synthesized from heptanoic acid and anhydrous ethanol which catalyzed by tungstozincic heteropoly acid complexes.The results showed that the optimal conditions were as follows:the dosage of catalyst was 1% of the material gross,moreover,after continuous using for six times,the activity of the catalyst hardly descend.The activity of K8[NiZnW11O39(H2O)] is best in the three catalysts.