钨锌杂多酸盐催化合成庚酸乙酯  

Catalytic Synthesis of Ethyl Heptanoate by Tungstozincic Heteropoly Acid

作　　者：薛华[1] 任跃红[1] 董金龙[1] 

机构地区：[1]太原师范学院化学系,太原市黄陵路19号030031

出　　处：《光谱实验室》2010年第4期1529-1531,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：合成了K8[FeZnW11O39(H2O)]、K8[NiZnW11O39(H2O)]和K8[CoZnW11O39(H2O)]3种具有Keggin结构的钨锌混配型杂多酸盐催化剂,以无水乙醇和庚酸为原料,催化合成庚酸乙酯。结果表明最佳反应条件为:催化剂用量为原料质量的1%,催化剂在连续使用6次情况下活性无明显下降,3种催化剂中K8[NiZnW11O39(H2O)]的催化活性最好。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.

关 键 词：钨锌杂多酸盐 催化合成 庚酸乙酯 

分 类 号：O657.33[理学—分析化学] TS262.3[理学—化学]