Author： Zakoshansky V.
Publisher： MAIK Nauka/Interperiodica
ISSN： 1070-3632
Source： Russian Journal of General Chemistry, Vol.81, Iss.5, 2011-05, pp. : 865-883
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Abstract
It is demonstrated that, in the course of the cumene oxidation reaction promoted by dissolved oxygen (O 2liquid ), newly-formed retarders-inhibitors (In) reduce the values of relationships between radicals and inhibitors, in particular R·/In and ROO·/In, thus leading to a decrease in cumene hydroperoxide formation rate, in the degree of cumene conversion, and in process selectivity. Clear evidence of the dominant role of dissolved oxygen in the increase in formation of retarders/inhibitors is provided, and it is also proven that preremoval of retarders/inhibitors is effective in overcoming the hydroperoxide concentration limit, and in noticeably increasing the degree of cumene conversion, without major losses in selectivity.
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