Abstract: The goal of this research work is to develop an environmentally friendly catalytic oxidation system for the synthesis of cyclohexanone from cyclohexanol using hydrogen peroxide as the oxidizing agent under phase transfer catalytic conditions with heteropolyacid (dodeca-tungstophosphoric acid) as a co-catalyst. The effect of various reaction parameters is studied for this oxidation system. It was observed that the reaction takes place to a significant extent (89% conversion) in 30 minutes at a temperature of 600C and a speed of agitation of 1200 rpm. The calculated activation energy from the Arrhenius plot for the temperature range of 400C-600C using initial rate of reaction is 1.48 kcal/gmol, which indicates that the reaction may be mass transfer controlled. The initial rate of reaction was independent of the concentration of cyclohexanol in the organic phase for the concentration range studied. The initial rate of reaction was found to be linearly dependent on the concentration of hydrogen peroxide in the aqueous phase, the total concentration of the phase transfer catalyst in the organic phase and the co-catalyst loading. A reaction mechanism is proposed and a kinetic model is developed for this environmentally friendly catalytic oxidation system.

Keywords: Cyclohexanone, Environmentally Friendly Oxidation, Heteropolyacid, Hydrogen Peroxide, Kinetic Model, Phase Transfer Catalysis.

Cite:
Ashwini M. Patil, Suresh V. Ranade, Cyrus K. Mistry*, "Environmentally Friendly Oxidation of Cyclohexanol to Cyclohexanone with Hydrogen Peroxide under Liquid-Liquid Phase Transfer Catalysis", IARJSET International Advanced Research Journal in Science, Engineering and Technology, vol. 10, no. 12, pp. 144-156, 2023, Crossref https://doi.org/10.17148/IARJSET.2023.101219.

| DOI: 10.17148/IARJSET.2023.101219