丙二醇甲醚乙酸酯的合成研究  

Synthesis of Propylene Glycol Methyl Ether Acetate

作　　者：金照生[1] 张卫东[1] 张磊[1] 陈永福[1] 

机构地区：[1]中国石油化工股份有限公司上海石油化工研究院催化四部,上海201208

出　　处：《精细化工》2001年第7期376-378,共3页Fine Chemicals

摘　　要：采用固体酸催化剂合成丙二醇甲醚乙酸酯。测定了化学平衡常数Kp,在 36 3、373K反应温度下分别为 0 8749、0 9118。在n(HAc)∶n(丙二醇甲醚 ) =3∶1,液体空速 4～ 10h-1,反应温度36 3～ 383K工艺条件下 ,丙二醇甲醚转化率可以大于 70 % ,丙二醇甲醚乙酸酯的选择性大于96 % ,6 2 0h寿命实验表明催化剂没有明显的失活现象。A continuous liquid phase esterification process is developed to produce propylene glycol methyl ether acetate. This process utilizes solid acid catalyst. The chemical equilibrium constants are 0.8749 and 0.9118 at reaction temperature 363 K and 373 K respectively. Under the optimized conditions: n (HAc): n(propylene glycol methyl ether) = 3:1, LHSV 4 [similar to] 10 h-1 and reaction temperature 363 [similar to] 383 K, the conversion of propylene glycol methyl ether can be more than 70%, and the selectivity for propylene glycol methyl ether acetate can be more than 96%. The 620 h stability test of the catalyst shows no distinct deactivation.

关 键 词：丙二醇甲醚乙酸酯 酯化 丙二醇甲醚 合成 固体酸催化剂 

分 类 号：TQ223.24[化学工程—有机化工]