One-step catalytic cyclohexane oxidation to adipic acid using molecular oxygen

Yu, Kai; Hummeida, Ranya; Abutaki, Afaf; Tsang, Shik Chi Edman

doi:10.1007/s10562-006-0129-4

Cited by 17 publications

(4 citation statements)

References 16 publications

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“…The direct oxidation of cyclohexane to adipic acid is a process which has been paid special attention for a long time. , In particular, the process has the obvious advantages that it would convert cyclohexane into adipic acid in a single stage and without using nitric acid as the oxidant. During the oxidation process, usually the solvent is acetic acid and the oxidant is oxygen.…”

Section: Introductionmentioning

confidence: 99%

Solubilities of Succinic Acid in Acetic Acid + Water Mixtures and Acetic Acid + Cyclohexane Mixtures

et al. 2014

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The solubilities of succinic acid in acetic acid + water solvent mixtures at (303.2 to 333.2) K and acetic acid + cyclohexane solvent mixtures at (303.2 to 343.2) K were determined. It was found that the solubility of succinic acid in acetic acid + cyclohexane mixtures increases with increasing mass fraction of acetic acid at constant temperature. However, for the system of acetic acid + water solvent mixtures, acetic acid with the mass fraction of 0.20 shows the best dissolving capacity for succinic acid. The experimental data were well-correlated with universal quasi-chemical (UNIQUAC) equations, and the solubilities calculated by the model were in good agreement with experimental data.

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Section: Introductionmentioning

confidence: 99%

Solubilities of Succinic Acid in Acetic Acid + Water Mixtures and Acetic Acid + Cyclohexane Mixtures

et al. 2014

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“…The cyclohexane oxidation is the most commonly studied process, where the valuable for organic synthesis compounds are achieved during oxidative dehydrogenation or during oxidation [4][5][6][7]. The implementation of thermodynamically hindered reactions is of great interest for petrochemical and organic synthesis.…”

Section: Introductionmentioning

confidence: 99%

Kinetics and Mechanism of the Reaction of Coherently Synchronized Oxidation and Dehydrogenation of Cyclohexane by Hydrogen Peroxide

Aghamammadova

Nagieva

Gasanova

et al. 2016

MATEC Web of Conferences

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Abstract. Inducing effect of hydrogen peroxide on synchronous oxidation reaction is accompanied by the occurrence of two interconnected and interacting reactions. The reaction of Н2О2 decomposition (primary) generates the leading active OH x and x 2 HO free radicals in a system. During the interaction of active and free radicals with the substrate, the conversion of the substrate occurs in the secondary reaction, coherently-synchronized with the primary one. The mechanism of such coherently synchronized reactions is being examined in the process of cyclohexane oxidation with hydrogen peroxide in homogeneous and heterogeneous systems. The process of coupling dehydrogenation of cyclohexane to cyclohexene and cyclohexadiene with hydrogen peroxide was carried out without catalyst. This process was also carried out at a fairly low temperature in a heterogeneous catalytic system. Biomimetic catalyst, which simulates the basic functions of the enzyme group of oxidoreductase -catalase and monooxygenase, was used as the catalyst here. Characterised by its highly active and selective action these biomimetic catalysts are synthesized based on iron-porphyrin complexes simulating the active component of cytochrome P-450. Based on this experimental researches, the complex reaction, consisting of parallel-sequential oxidation and dehydrogenation reactions, which are coherently synchronized, proceeds during the process of cyclohexane oxidation with biomimetic catalyst. Depending on the reaction parameters it is possible to deliberately adjust the direction of oxidation reaction and reaction rate.

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“…In recent years, the direct oxidation of cyclohexane to adipic acid has drawn much attention due to the obvious advantages that there would be in avoiding the aforementioned above disadvantages from the two-step method. , During the oxidization process, usually the solvent is acetic acid, and the oxidant is oxygen. Water and AA are the main products.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium for Ternary System Water + Cyclohexane + Acetic Acid at (303.2 to 333.2) K

et al. 2013

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Liquid−liquid equilibrium (LLE) data for the ternary system water + cyclohexane + acetic acid have been measured at (303.2 to 333.2) K under atmospheric pressure. The Othmer−Tobias and Bachman equations were used to check the reliability of the obtained tie-line data. The experimental data were correlated by NRTL (nonrandom twoliquid) activity coefficient model, and the relevant interaction parameters were regressed with the experimental data. The predicted values by NRTL method show good consistency with the measured data. The obtained interaction parameters can be used in the calculation of LLE for the ternary system water + cyclohexane + acetic acid as well as for the design and optimization of the related separation process.

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One-step catalytic cyclohexane oxidation to adipic acid using molecular oxygen

Cited by 17 publications

References 16 publications

Solubilities of Succinic Acid in Acetic Acid + Water Mixtures and Acetic Acid + Cyclohexane Mixtures

Solubilities of Succinic Acid in Acetic Acid + Water Mixtures and Acetic Acid + Cyclohexane Mixtures

Kinetics and Mechanism of the Reaction of Coherently Synchronized Oxidation and Dehydrogenation of Cyclohexane by Hydrogen Peroxide

Liquid–Liquid Equilibrium for Ternary System Water + Cyclohexane + Acetic Acid at (303.2 to 333.2) K

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