mayhanlimei
qingqing829
At present, the industrial route for the production of cyclohexanone cyclohexane oxidation, there are two First cyclohexane catalytic oxidation, and the other is non-catalytic oxidation of The traditional process of production of cyclohexyl alcohol and cyclohexanone (KA oil), the process is complex and serious Therefore, to find a new energy to maximize cyclohexane conversion rate and the selectivity of the alcohol and ketone oxidation method has great Metal porphyrin catalysts to improve the role of traditional crafts shortcomings, showing high activity and selectivity is the main object of study of the catalytic oxidation of The conversion rate of cyclohexane, cyclohexyl alcohol selectivity of cyclohexanone as the indexes were tetraphenylporphyrin copper (TPPCu), four (m-methylphenyl) porphyrin copper (Tm-MPPCu) (3,4 - dimethylphenyl) porphyrin copper (TDMPPCu) and other three metal porphyrin catalyzed oxidation of cyclohexane synthesis of cyclohexyl alcohol and cyclohexanone experiments, the purpose is to explore the tetraphenylporphyrin copper even methyl substituents at the benzene ring, the number of methyl substituted biomimetic catalytic oxidation of cyclohexane The experimental results show that: (1) within the scope of this experimental study, with methyl substituents on the benzene ring of the tetraphenylporphyrin copper, and its catalytic performance has improved, methyl substituted with a base number is more catalytic properties to improve more; (2) three metalloporphyrins have to study indicators of conditions, the optimum catalyst for is TDMPPC Suitable reaction conditions: the pressure 0MPa, air flow 10-12m3 / h, the catalyst concentration of 4 × 10-6g / g conditions, the optimum reaction temperature of 150 ° C, the reaction time was Under these conditions, the cyclohexane conversion rate of 23% of alcohol and ketone selectivity of 1%Keywords: cyclohexane; Metalloporphyrins; catalytic oxidation; methyl substituents the number of
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