复合固体超强酸SO_4^(2-)/ZrO_2-TiO_2催化合成己二酸二(2-乙基)己酯  

Synthesis of Di-2-ethylhexyl Adipate Catalyzed by Complex Solid Super Acid SO_4^(2-)/ZrO_2-TiO_2

作　　者：吴洪特[1] 于兵川[1] 葛胜祥[1] 

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023

出　　处：《化学与生物工程》2007年第9期13-15,共3页Chemistry & Bioengineering

基　　金：湖北省教育厅基金资助项目(D200712011)

摘　　要：以复合固体超强酸SO42-/ZrO2-TiO2为催化剂合成了己二酸二(2-乙基)己酯,考察了催化剂用量、酸醇投料比和反应温度对反应的影响。结果表明,最佳合成工艺条件为:催化剂用量为1.5%(占总投料量质量分数)、酸醇投料比为n(己二酸)∶n(2-EH)=1∶2.5、反应温度195～200℃、反应时间2.5 h,此时产品收率达97.6%。催化剂可重复使用6次,再生容易。Di-2-ethylhexyl adipate was synthesized with complex solid super acid SO4^2-/ZrO2-TiO2 as catalyst. Effects of catalyst dosage, molar ratio of adipic acid to 2-ethyl hexanol, reaction temperature on reaction were studied. The results indicated that the optimum conditions were as follows：catalyst dosage 1.5%（the mass fraction in the total material） , molar ratio of adipic acid to 2-ethyl hexanol 1 ： 2.5, reaction temperature 195-200℃ ,reflux reaction time 2.5 h. At such conditions,the yield of the product was 97.6%. The catalyst could he reused for six times,and it was easy to regenerate.

关 键 词：复合固体超强酸 己二酸二(2-乙基)己酯 催化剂 合成 

分 类 号：O623.624[理学—有机化学] O643.36[理学—化学]