金属卟啉催化的甲苯氧化及工艺优化(英文)

• 作 者: 李勇飞 严旭辉 江国防 刘强 宋建新 郭灿城
• 机 构: College of Chemistry and Chemical Engineering Hunan University,College of Chemistry and Chemical Eng
• 出 处: Chinese Journal of Chemical Engineering
• 发表日期: 2007年03期
• 关键词: benzaldehyde alcohol benzyl 金属卟啉 aerobic toluene complexes 甲苯氧化 Aerobic selectiv

Catalytic activities of a series of metalloporphyrin complexes in selective aerobic oxidation of toluene were investigated.The effects of different central metal ions in metalloporphyrins[T(p-Cl)PPMCl(M=Fe,Co,Mn,Cu)] on the reaction course had been examined and it was found that T(p-Cl)PPCu presented the highest catalytic activ- ity in the reaction.The reaction conditions of toluene oxidation were optimized by using orthogonal experiment de- sign.Five relevant factors were investigated:temperature,air pressure,catalyst loading,air flow rate and reaction time.The effects of the five factors on both toluene conversion and total yield of benzaldehyde and benzyl alcohol were discussed.The research results showed that the reaction temperature was the most significant factor influenc- ing toluene oxidation.On the basis of the margin analysis,the optimum conditions for the toluene conversion and the total yield of benzaldehyde and benzyl alcohol respectively were achieved,under which the toluene conversion was up to 14.67%and the total yield of benzaldehyde and benzyl alcohol reached 5.89%.

Catalytic activities of a series of metalloporphyrin complexes in selective aerobic oxidation of toluene were investigated. The effects of different central metal ions in metalloporphyrins [T (p-Cl) PPMCl (M = Fe, Co, Mn, Cu)] on the reaction course had been examined and it was found that T (p-Cl) PPCu presented the highest catalytic activity in the reaction. The reaction conditions of toluene oxidation were optimized by using orthogonal experiment de- sign. FIVE relevant factors were investigated: temperature, air pressure, catalyst loading, air flow rate and reaction time.The effects of the five factors on both toluene conversion and total yield of benzaldehyde and benzyl alcohol were discussed.The research results showed that the reaction temperature was the most significant factor influencing toluene oxidation. On the basis of the margin analysis, the optimum conditions for the toluene conversion and the total yield of benzaldehyde and benzyl alcohol respectively were achieved, under which the tolu ene conversion was up to 14.67% and the total yield of benzaldehyde and benzyl alcohol reached 5.89%.