石油炼制与化工
• 基础研究 • 上一篇 下一篇
孙小玲 陈萍 吕剑峰
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SUN Xiaoling Ping Chen Jian-feng LU
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摘要: 研究了以负载于酸性氧化铝上的酞菁镍为催化剂,分子氧为氧化剂,异丁醛为助氧化剂,由环己烯经催化环氧化制备环氧环己烷的工艺过程。制备了金属酞菁催化剂NiPc/Al2O3,并利用红外光谱、紫外-可见光谱、XRD等技术对其进行了结构表征。探讨了各种因素对环氧化反应的影响,结果表明,制备环氧环己烷的最佳工艺条件为:反应温度为35 ℃、反应时间为11 h、催化剂用量为2 %、通氧量为20 mL/min、醛烯质量比为2,在此条件下环氧环己烷的收率为36.8 %。
关键词: 分子氧, 环己烯, 催化氧化, 酞菁镍, 环氧环己烷
Abstract: The catalytic epoxidation of cyclohexene with molecular oxygen catalyzed by NiPc/Al2O3 catalyst was studied using isobutylaldehyde as oxidant promoter. A metal phthalocyanine catalyst NiPc/Al2O3 was prepared and characterized by FT-IR, UV-Visible and XRD. The effects of various factors on the catalytic epoxidation of cyclohexene were investigated. Results showed that under the optimum reaction conditions of a reaction temperature of 35 ℃, a reaction time of 11 h, a catalyst dosage of 2%, an oxygen flow rate of 20 mL/min and a mass ratio of aldehyde to cyclohexene of 2, the yield of cyclohexene oxide reached 36.8 %.
Key words: molecular oxygen, cyclohexene, catalytic oxidation, nickel phthalocyanine, cyclohexene oxide
孙小玲 陈萍 吕剑峰. 环己烯经分子氧催化环氧化制备环氧环己烷[J]. 石油炼制与化工, doi: .
SUN Xiaoling Ping Chen Jian-feng LU. CATALYTIC EPOXIDATION OF CYCLOHEXENE WITH MOLECULAR OXYGEN TO CYCLOHEXENE OXIDE[J]. Petroleum Processing and Petrochemicals, doi: .
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http://www.sylzyhg.com/CN/Y2010/V41/I3/32