Liquid-phase oxidation of ethylbenzene over cobalt complexes supported by polymeric materials

Journal Article · Tue Jan 01 00:00:00 EST 1980 · Ind. Eng. Chem., Prod. Res. Dev.; (United States)

DOI:https://doi.org/10.1021/i360073a018· OSTI ID:6480932

Efendiev, A A; Shakhtakhtinsky, T N; Mustafaeva, L F; Shick, H L

Liquid-phase oxidation of ethylbenzene over cobalt complexes supported by polymeric materials i.e., a copolymer of diethyl ester of vinylphosphonic acid and acrylic acid (9.2% by wt P, 160,000 mol wt), was studied at 70/sup 0/-135/sup 0/C, 1 atm, and 1.5-6 g/l. of catalyst (corresponding to a cobalt content of 6.45-25.8 meq/l.) in a gasometric unit with molecular oxygen used as the oxidizing agent. The reaction rate passed through a maximum at 125/sup 0/C and a catalyst concentration corresponding to 20 meq/l. Co. The calculated activation energy was 10 kcal/mole. Repeated use of the catalyst did not impair its activity and eliminated the induction period of the reaction. The catalyst, prepared by mixing a dilute solution of the copolymer with 0.075 M aqueous cobalt chloride, crosslinking of the precipitated cobalt-polymer complex with methylene diacrylamide, and treating the crosslinked material with aqueous CoCl/sub 2/ to 4.3 meq of Co/g of dry sorbent, was characterized by IR spectroscopy.

• Research Organization: Inst. Theor. Probl. Chem. Technol. Acad. Sci. Azerb. S.S.R.
• OSTI ID: 6480932
• Journal Information: Ind. Eng. Chem., Prod. Res. Dev.; (United States), Vol. 19:1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COBALT COMPLEXES
CATALYTIC EFFECTS
HYDROCARBONS
OXIDATION
BENCH-SCALE EXPERIMENTS
BENZENE
CATALYST SUPPORTS
CHEMICAL REACTION KINETICS
ETHYL RADICALS
EXPERIMENTAL DATA
MIXTURES
POLYMERS
ALKYL RADICALS
AROMATICS
CHEMICAL REACTIONS
COMPLEXES
DATA
DISPERSIONS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
RADICALS
REACTION KINETICS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)