HZSM-5催化剂液相合成乙酸丁酯的研究

Study on Synthesis of n-butyl acetate in liquid phase over HZSM-5

考察了用HZSM-5作为冰醋酸和正丁醇液相酯化反应催化剂的性能。当催化剂用量为原料重量的4%,醇酸比(mol)1.10,每次反应5h、反应温度135℃、硅铝比(mol)50时,连续反应60h,醋酸转化率仍在93%以上。

The behavior of HZSM-5 was investigated when they were used as catalysts in esterification of n-butyl alcohol and ice acetic acid in liquid phase. The conversion of acetic acid was above 93% in the continuous reaction for 60 hours with the catalyst amounting to 4% of the feed stock by weight ;mol ratio of alcohol to acid, 1. 10; the time for each reaction,5 hrs;reaction temperature, 135℃ and mol ratio of SiO_2to Al_2O_3,50.