以水玻璃为硅源合成HZSM-5分子筛催化环己烯水合制环己醇

Synthesis of HZSM-5 Zeolite Using Water Glass as Silicon Source for Hydration of Cyclohexene to Cyclohexanol

环己烯催化水合生成环己醇是制备己二酸的一种很有前途的方法,以水玻璃为硅源,制备了HZSM-5。采用XRD、NH3-TPD和SEM等技术对制备的HZSM-5催化剂进行了表征。研究发现,制备的HZSM-5催化剂在选择性和活性方面表现良好。环己烯的转化率达到12. 38%,环己醇的选择性达到99%。

The catalytic hydration of cyclohexene to cyclohexanol appears to be a promising alternative in the production of adipic acid.In this paper,the HZSM-5 was successfully synthesized using water glass as silicon source.Prepared HZSM-5 catalysts were characterized using several techniques like X-ray diffraction(XRD),ammonia temperature-programmed desorption(NH 3-TPD)and Scanning electron microscopy(SEM).Prepared HZSM-5 catalyst was found to offer the best performance regarding selectivity and activity.The conversion of cyclohexene reached to 12.38%and the selectivity of cyclohexanol was 99%.