Correspondence/catalytic oxidation of phenol in aqueous solution over copper oxide

Journal Article · Tue Aug 01 04:00:00 EDT 1978 · Ind. Eng. Chem. Fundam.; (United States)

DOI:https://doi.org/10.1021/i160067a020· OSTI ID:5032842

Njiribeako, A I ^[1]; Hudgins, R R; Silveston, P L; Katzer, J R; Sadana, A

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1. Queen's Univ., Ont.

Correspondence regarding the catalytic oxidation of phenol in aqueous solution over copper oxide studied earlier, found that copper from the ..gamma..-alumina supported 10% copper(II) oxide catalyst is leached out of the catalyst by phenol in the reaction mixture. Phenol concentration vs. time curves were obtained for runs performed at 150/sup 0/C with 10.6 atm initial oxygen partial pressure, 6.5 g catalyst and 4400 g/l. initial phenol concentration; and at identical conditions without the catalyst and with solid catalyst replaced by 148 g/l. cupric ion. This was approximately the cupric ion level leached out of the catalyst when the phenol level dropped to 50% of its original value. Based on the slopes of these curves at this phenol level, the noncatalytic rate was about 9% of the total rate measured with the Harshaw catalyst, and the homogeneous catalytic component of reaction attributable to dissolved cupric ion was about 20% of the total for copper on alumina and 40% for CuO on silica. Thus, the homogeneous catalytic component due to the leached cupric ion in batch reaction varies with time as well as reaction conditions. A reply by one of the authors, J. R. Katzer, is included.

• OSTI ID: 5032842
• Journal Information: Ind. Eng. Chem. Fundam.; (United States), Journal Name: Ind. Eng. Chem. Fundam.; (United States) Vol. 17:3; ISSN IECFA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AQUEOUS SOLUTIONS
AROMATICS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
DISPERSIONS
HYDROXY COMPOUNDS
MIXTURES
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHENOL
PHENOLS
SOLUTIONS
TRANSITION ELEMENT COMPOUNDS