Surface-catalyzed autoxidation of sulfur(IV) in aqueous silica and copper(II) oxide suspensions

Article Abstract:

A study of the kinetics of the autoxidation of sulfur(IV) in aqueous cooper(II) oxide and silica suspensions examined the kinetics in both acetate-buffered and unbuffered suspensions. The results indicated that the major catalytic agent in the suspensions was the particle surface. This finding is consistent with previous research, which indicated that wetted aerosol particles played a key role in sulfur dioxide adsorption and oxidation.

Surface chemistry, Catalysis

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Kinetics of acetic acid oxidation in supercritical water

Article Abstract:

Kinetics experiments were conducted in which various concentrations of acetic acid were subjected to supercritical water oxidation in batch microreactors between temperatures of 380 and 440 degrees centigrade. Results revealed a quantitative rate law which was first order in acetic acid, second order in water and 0.6 order in oxygen. The activation energy was determined to be 73.6 kilocalories per mol.

Acetic acid

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Mechanism and kinetics of autoxidation of calcium sulfite slurries

Article Abstract:

Research was done at the Polish Academy of Sciences on the autoxidation of calcium sulfite slurries in the presence of a cobaltous catalyst. This reaction has been widely studied for its applications in air pollution control. The results of the research indicate a possible method for improving flue gas desulphurization systems through the application of cobaltous sulfate.

Sulfites

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