Kinetic Laws of Oxidation of para-tert-Butylcumene in the Presence of N-Hydroxyphthalimide

• Published in: Kinetics and catalysis Vol. 64; no. 6; pp. 750 - 758
• Main Authors: Frolov, A. S., Kurganova, E. A., Sapunov, V. N., Kozlovskii, R. A., Koshel’, G. N., Yarkina, E. M.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-12-2023; Springer Nature B.V
• Subjects: Byproducts; Catalysis; Chemistry; Chemistry and Materials Science; Hydrocarbons; Oxidation; Oxygen; Physical Chemistry; Reaction kinetics; mathematical modeling; hydroxyphthalimide; aerobic oxidation; -; butylcumene
• ISSN: 0023-1584; 1608-3210
• DOI: 10.1134/S002315842306006X

The kinetics of the oxidation of
para
-
tert
-butylcumene to hydroperoxide by molecular oxygen in the presence of
N
-hydroxyphthalimide was studied. By analyzing the laws of the formation of hydroperoxide and byproducts, a mathematical model of the process was constructed, which adequately describes the changes in the concentrations of the main components of the reaction over time. The main role of
N
-hydroxyphthalimide is to convert peroxide radicals into the corresponding hydroperoxides, thereby reducing the yield of byproducts by decreasing the quadratic chain termination rate. Moreover, the formed
N
-hydroxyphthalimide radicals increase the rate of hydrocarbon oxidation. Thus, the use of
N
-hydroxyphthalimide in hydrocarbon oxidation processes results in an increase in the rate and selectivity of hydroperoxide formation.