| 光谱学与光谱分析 |
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| Preparation of δ-Valerolactone and Its Spectral Analysis |
| FENG Shi-hong1, JIA Tai-xuan2, ZHANG Zhen-bin1, GAO Jie1, LIN Yan1, LIU Zi-li3 |
1. College of Chemistry & Environmental Engineering, Liaoning University of Technology, Jinzhou 121004, China
2. College of Chemistry & Environmental Engineering, Anyang Institute of Technology, Anyang 455000, China
3. College of Chemistry & Chemical Engineering, Guangzhou University, Guangzhou 510006, China |
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Abstract In the study, CuO/ZnO/Al2O3 was prepared by sol-gel method. Its catalytic activity was evaluated by gas-phase catalytic dehydrogenation of 1,5-Pentanediol to δ-valerolactone as a probe reaction. CuO/ZnO/Al2O3 and long period reactive CuO/ZnO/Al2O3 were detected by XRD. Micro-structure and essence disciplinarian of CuO/ZnO/Al2O3 were disclosed. Metal ions had a cooperative effects during the catalytic dehydrogenation of 1,5-pentanediol to δ-valerolactone. After CuO/ZnO/Al2O3 deactivation, crystal particle size was increased clearly. It were found that characteristic diffraction peaks were caused by the catalyst temperature raising in methanol catalytic synthesis of ZnO. 1,5-Pentanediol and δ-valerolactone were detected by FTIR. Their internal chemical bond and molecular structure were disclosed. The purity of δ-valerolactone product was very high. δ-Valerolactone and its polymer were detected by DSC. δ-Valerolactone possessed with poor stability. Polymerization reaction was easily happened by itself. So it was worth focusing on how to improve the stability of the δ-valerolactone monomer. This study could provide basic data and experimental basis for gas-phase catalytic dehydrogenation of 1,5-Pentanediol to δ-valerolactone in pilot and industrial scale up research.
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Received: 2014-07-25
Accepted: 2014-11-08
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Corresponding Authors:
FENG Shi-hong
E-mail: shihong.feng@163.com
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[3] LIU Yan(刘 燕). Sichuan university(四川大学), Master Degree Theses of Master of Applied Chemistry(高分子化学与物理硕士学位论文), 2007.
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