Oxidation of 1,2-cyclohexanediol as a step for adipic acid synthesis

Peckh, Kamil; Lisicki, Dawid; Pabich, Ewelina; Orlińska, Beata

doi:10.1016/j.jiec.2022.02.053

Journal of Industrial and Engineering Chemistry

2022

DOI: 10.1016/j.jiec.2022.02.053

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Oxidation of 1,2-cyclohexanediol as a step for adipic acid synthesis

Kamil Peckh

Dawid Lisicki

Ewelina Pabich

et al.

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2024

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Cited by 2 publications

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Coupled action of ozone and UV radiation towards obtaining adipic acid from cyclohexane/one

Marek,

Lisicki

2024

Polish Journal of Chemical Technology

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A lot of research is constantly underway in the world to develop new or improve the current processes of the chemical industry to make them more effective and environmentally friendly. The described research on the oxidation of cyclohexane or cyclohexanone to adipic acid with a coupled action of UV radiation and oxygen–ozone mixture, instead of the currently used oxidation with HNO3, is part of this trend. Gas chromatography was used to determine process indicators, such as cyclohexane conversion and selectivity to AA, which exceeded 50% at 25 oC, after 16 h. This method can also be used for the preparation of other dicarboxylic acids from cycloalkanes, which proves its universal character.

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Coupled action of ozone and UV radiation towards obtaining adipic acid from cyclohexane/one

Marek,

Lisicki

2024

Polish Journal of Chemical Technology

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Oxidation of Cyclohexane/Cyclohexanone Mixture with Oxygen as Alternative Method of Adipic Acid Synthesis

et al. 2022

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Herein, an alternative method for adipic acid (AA) synthesis of industrial importance has been reported. The proposed novel method involves the one-step, solvent-free oxidation of a cyclohexane/cyclohexanone (CH/CH=O) mixture, with a cheap oxidizing agent such as O2 or air under mild conditions in the presence of N-hydroxyphtalimide (NHPI) and transition metals as catalysts. It has been showed that CH/CH=O mixture under applied mild conditions oxidized faster than CH and CH=O separately. This was due to the greater oxidizability of CH=O compared to CH. The peroxyl radicals formed by CH=O oxidation initiated the oxidation of the less reactive CH. Additionally, CH=O increased the polarity of the reaction mixture, promoting the solubility of NHPI. The influence of type and amount of catalyst, cyclohexane to cyclohexanone ratio, temperature, time, type of oxidizing agent on the composition of CH/CH=O oxidation products have been reported.

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Oxidation of 1,2-cyclohexanediol as a step for adipic acid synthesis

Cited by 2 publications

References 32 publications

Coupled action of ozone and UV radiation towards obtaining adipic acid from cyclohexane/one

Coupled action of ozone and UV radiation towards obtaining adipic acid from cyclohexane/one

Oxidation of Cyclohexane/Cyclohexanone Mixture with Oxygen as Alternative Method of Adipic Acid Synthesis

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