Effect of interface mass transfer on the liquid-phase oxidation of acetaldehyde

Chou, Tse‐Chuan; Lin, Fwu-Shing

doi:10.1139/v83-229

Cited by 25 publications

(13 citation statements)

References 8 publications

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“…One is similar to the homogeneous liquid phase oxidation of acetaldehyde using Co3+ ions as catalyst. The Co3+ ions initiate the free radicals, and the subsequent reactions to form peroxides are free radical chain reactions in the liquid phase (Chou and Lin, 1980,1982a, 1983; Allen and Aguilo, 1968; Matsuzaki and Imamura, 1975;Takaoka, 1976;Clinton et al, 1975). The other possible reaction mechanism is a typical heterogeneous catalytic reaction.…”

Section: Methodsmentioning

confidence: 99%

“…Reaction Mechanism I. The liquid-phase oxidation of acetaldehyde to form PAA using homogeneous Co3+ ions as catalyst is a free-radical reaction (Chou and Lin, 1980, 1982a, 1983Clinton et al, 1975). Several investigators found that the exchanged metal ions on the resin or other carriers had catalytic activities and properties similar to those of the homogeneous metal ions (Matsuzaki and Imamura, 1975).…”

Section: Methodsmentioning

confidence: 99%

“…The synthesis of peracetic acid (PAA) from acetaldehyde and oxygen by using Co3+ ion as homogeneous catalyst in the liquid phase has been discussed in previous papers (Chou and Lin, 1980,1982a, 1983; Chou and Lee, 1982b). The reaction scheme in the liquid phase can be summarized as peroxides, peracetic acid (PAA) and acetaldehyde monoperacetate (AMP), by Co3+ ion.…”

Section: Introductionmentioning

confidence: 99%

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Heterogenizing homogeneous catalyst. 1. Oxidation of acetaldehyde

Chou¹,

Lee²

1985

Ind. Eng. Chem. Fund.

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Zi = configuration integral of i molecules in a subsystem Registry No. Cyclohexane, 110-82-7; heptane, 142-82-5. Literature Cited Barrer, R. M.; Lee, J. A. Surf. Sci. 1968, 72, 354. Barrer, R. M.; Coughlin, B. In "Molecular Sieves"; Society of Chemical In-Costa, E.; Sotelo, J. L.; Calleja. G.; k r r o n , C. AZChEThe process of heterogenizing homogeneous Co3+ ion as catalyst for the liquid-phase oxidation of acetaldehyde to form peracetic acid was developed and studied. The reaction mechanism of acetaldehyde oxidation was proposed and the ratedetermining steps were experimentally identified. The results indicated that the selectivity of producing peroxides is very high and the decompositions of peroxides to form the side product, acetic acid, are insignificant. The rates of formation of peracetic acid obtained by using supported homogeneous Co3+ ion as a catalyst were different from those with homogeneous Co3+ ion as a catalyst. A generalized corresponding states prinicple (GCSP) based on the properties of two (nonspherical) reference fluidsis extended here to dlffusion coefficients. The prediction of selfdiffusion coefficients requires a knowledge of the selfdiffusion coefflcients of two (similar) fluids, whereas the prediction of infinite dilution diffusion coefficients in a given solvent requires a knowledge of the infinite dilution diffusion coefficients of two fluids in the same solvent. The composition dependence of binary diffusion coefflcients can be correlated by using the measured (or predicted) infinite dilution diffusion coefficients. Good agreement between experiment and calculation has been obtained by using, at most, one adjustable constant to characterize each binary system. The new method is as good as, and often better than, the commonly available predictive equations.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Heterogenizing homogeneous catalyst. 1. Oxidation of acetaldehyde

Chou¹,

Lee²

1985

Ind. Eng. Chem. Fund.

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“…The cobalt catalyst is regenerated by decomposing peracetic acid. In kinetic studies [127], CH 3 CO 3 was the main free radical in the liquid phase. Other catalysts, for example phosphomolybdic acids [128], also catalyze acetaldehyde oxidation.…”

Section: Acetaldehyde Processmentioning

confidence: 99%

Acetic Acid

Cheung

Tanke

Torrence

2011

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. Introduction 2. Physical Properties 3. Chemical Properties 4. Production 4.1. Carbonylation of Methanol 4.2. Direct Oxidation of Saturated Hydrocarbons 4.3. Acetaldehyde Process 4.4. Other Processes 4.5. Concentration and Purification 4.6. Construction Materials 5. Wastewater and Off‐Gas Problems 6. Quality Specifications 7. Analysis 8. Storage, Transportation, and Customs Regulations 9. Uses 10. Derivatives 10.1. Salts 10.1.1. Aluminum Acetate 10.1.2. Ammonium Acetate 10.1.3. Alkali Metal Salts 10.2. Esters 10.2.1. Methyl Acetate 10.2.2. Ethyl Acetate 10.2.3. Butyl Acetate 10.2.4. 2‐Ethylhexyl Acetate 10.2.5. Other Esters 10.3. Acetyl Chloride 10.4. Amides 10.4.1. Acetamide 10.4.2. N,N ‐Dimethylacetamide 10.5. Phenylacetic Acid 11. Economic Aspects 12. Toxicology and Occupational Health

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“…The in situ process is better. The organic peracids can be also synthesized from aldehydes and oxygen by using Co 3+ ion as homogeneous catalyst in the liquid phase (Chou and Lin, 1983). The decompositions of organic peracids were very rapid in liquid solution in the presence of Co 2+ ion (Allen and Aquilo, 1968).…”

Section: Introductionmentioning

confidence: 99%

Epoxidation of Oleic Acid in the Presence of Benzaldehyde Using Cobalt(II) Tetraphenylporphyrin as Catalyst

Chou

Lee

1997

Ind. Eng. Chem. Res.

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Epoxidation of oleic acid with oxygen in the presence of benzaldehyde using cobalt(II) tetraphenylporphyrin (Co 2+ -TPP) as catalyst was studied. The results show that high yield of epoxidized oleic acid is obtained by the liquid phase epoxidation of oleic acid in the presence of benzaldehyde using Co 2+ -TPP as catalyst, which does not catalyze the decomposition of perbenzoic acid, which is one of the oxidation reagents for epoxidation and is formed by the oxidation of benzaldehyde. The oleic acid can be easily epoxidized in this system. The reaction mechanism was proposed. The experimental and theoretical results indicate that the epoxidized oleic acid is formed by a series of free-radical reaction steps. The rate-determining steps were experimentally identified, and the rate equation of epoxidation was obtained. The factors affecting the rate of epoxidation of oleic acid were also obtained.

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Effect of interface mass transfer on the liquid-phase oxidation of acetaldehyde

Cited by 25 publications

References 8 publications

Heterogenizing homogeneous catalyst. 1. Oxidation of acetaldehyde

Heterogenizing homogeneous catalyst. 1. Oxidation of acetaldehyde

Acetic Acid

Epoxidation of Oleic Acid in the Presence of Benzaldehyde Using Cobalt(II) Tetraphenylporphyrin as Catalyst

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