不同类型分子筛催化剂上香兰素丙二醇缩醛的合成  

Synthesis of vanillin propylene glycol acetal over different molecular sieves catalysts

作　　者：王文兰[1] 黄永[2] 孟庆磊[2] 刘百军[2] 

机构地区：[1]北华大学化学与生物学院,吉林吉林132013 [2]中国石油大学(北京)CNPC催化重点实验室,北京102249

出　　处：《化学工程师》2009年第4期1-3,共3页Chemical Engineer

基　　金：国家自然科学基金资助项目(20576077)

摘　　要：以香兰素和1,2-丙二醇为原料,HZSM-5、HY、USY、Hβ、HMCM-22和HMCM-41不同类型分子筛为催化剂,催化合成了香兰素1,2-丙二醇缩醛。对上述分子筛进行了N2吸附—脱附、吸附吡啶的FT-IR表征。结果表明,HMCM-22分子筛具有最高的活性,各种分子筛活性顺序为:HMCM-22>Hβ>USY>HY>HZSM-5>HMCM-41。HMCM-22分子筛具有最高的催化活性,因为它具有最大的二次孔的体积和适宜的酸性。The vanillin 1, 2-propylene glycol aeetal was synthesized using vanillin and 1, 2-propylene glycol as starting materials and HZSM-5, HY, Hβ, HMCM-22, HMCM-41 different type molecular sieve as the catalyst. The catalysts were characterized by means of N2 adsorpion-desorption and FT-IR of adsorption pyridine. The results indicate that the HMCM-22 molecular sieve has the higher activity and the each kind of molecular sieve active order is： HMCM-22 〉 Hβ 〉 USY 〉 HY 〉 HZSM-5 〉 HMCM-41. The higher activity was clue to the large secondary pore structure of HMCM-22 molecular sieve and the suitable acidity.

关 键 词：香兰素1 2-丙二醇缩醛 香兰素 1 2-丙二醇 分子筛 

分 类 号：TQ655[化学工程—精细化工]