Phenomenology of oxidation of a cumene feed containing hydroperoxide: I. Two paths of cumene hydroperoxide formation reaction

Author: Zakoshansky V.  

Publisher: MAIK Nauka/Interperiodica

ISSN: 1070-3632

Source: Russian Journal of General Chemistry, Vol.81, Iss.5, 2011-05, pp. : 845-864

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Abstract

This article presents direct evidence of the occurrence of cumene oxidation resulting from the presence of gaseous oxygen (O 2gas ) at the gas-liquid interface, demonstrating a markedly higher magnitude of process selectivity, as compared to oxidation that is promoted by dissolved oxygen ( 2liquid ). The significant contribution of O 2gas to the formation of cumene hydroperoxide under bubble-type process conditions is also discussed, emphasizing that the hydroperoxide formation rate is composed of two components: W total = W 1gas + W 1liquid , where the first component, W 1gas , is a function of k 1gas , [O 2gas ], and of the liquid-gas interface area, while the second component, W 1liquid , is subject to equation: W = k[R·][O 2liquid ].

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