Liquid-phase oxidation of cyclohexanone over cerium oxide catalyst

Journal Article · Tue May 01 00:00:00 EDT 1990 · Industrial and Engineering Chemistry Research; (USA)

DOI:https://doi.org/10.1021/ie00101a001· OSTI ID:6777286

Shen, H C ^[1]; Weng, H S ^[2]

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1. Refining and Manufacturing Research Center, Chinese Petroleum Corp., Chia-Yi 60036 (TW)
2. Dept. of Chemical Engineering, National Cheng Kung Univ., Tainan 70101 (TW)

Catalytic oxidation of cyclohexanone in the liquid phase with glacial acetic acid as the solvent over cerium oxide was studied between 5 and 15 atm and 98 and 118 {degrees} C in a batch reactor. The products were adipic acid, glutaric acid, succinic acid, caprolactone, carbon oxides, etc. The reaction undergoes a short induction period prior to a rapid reaction regime. In both regimes, the reaction is independent of oxygen pressure when the system pressure is above 10 atm. The induction period is inversely proportional to both of the catalyst weight and cyclohexanone concentration.During the rapid reaction regime, the reaction rate was found to be proportional to the 0.5 power of the catalyst weight and to the 1.5 power of the cyclohexanone concentration. Reaction mechanisms and rate expressions are proposed. The carbon oxides produced in this study were much lower than those previously reported. The cerium oxide catalyst is stable during the reaction.

• OSTI ID: 6777286
• Journal Information: Industrial and Engineering Chemistry Research; (USA), Vol. 29:5; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
02 PETROLEUM
CERIUM OXIDES
CATALYTIC EFFECTS
CYCLOHEXANONE
OXIDATION
BY-PRODUCTS
CARBON DIOXIDE
CATALYTIC CONVERTERS
CHEMICAL REACTION KINETICS
LIQUIDS
PHASE STUDIES
CARBON COMPOUNDS
CARBON OXIDES
CERIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
EQUIPMENT
FLUIDS
KETONES
KINETICS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL EQUIPMENT
RARE EARTH COMPOUNDS
REACTION KINETICS
400201* - Chemical & Physicochemical Properties
020500 - Petroleum- Products & By-Products