catalКатализ в промышленностиKataliz v promyshlennosti1816-03872413-6476LLC "KALVIS"10.18412/1816-0387-2026-3-3-17catal-1264Research ArticleКАТАЛИЗ В ХИМИЧЕСКОЙ И НЕФТЕХИМИЧЕСКОЙ ПРОМЫШЛЕННОСТИCATALYSIS IN CHEMICAL AND PETROCHEMICAL INDUSTRYОкисление кумола при катализе смешанными Сu(Mg)Al-оксидами и эффект фенантролинаOxidation of cumene catalyzed by CuMgAl-oxides and the effect of phenanthrolineКузнецоваН. И.KuznetsovaN. I.ctls@kalvis.ruБельскаяО. Б.BelskayaO. B.ctls@kalvis.ruЛисицынА. С.LisitsynA. S.ctls@kalvis.ruЗудинВ. Н.ZudinaV. N.ctls@kalvis.ruИнститут катализа им. Г.К. Борескова СО РАН, НовосибирскBoreskov Institute of Catalysis SB RAS, NovosibirskЦентр новых химических технологий ИК СО РАН, Институт катализа СО РАН, ОмскРоссияCenter of New Chemical Technologies BIC, Boreskov Institute of Catalysis, OmskRussian Federation202627052026263317Copyright © LLC "KALVIS", 20262026LLC "KALVIS"LLC "KALVIS"https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNoticehttps://www.catalysis-kalvis.ru/jour/article/view/1264

Исследовано жидкофазное окисление кумола молекулярным кислородом в присутствии Cu(Mg)Al-оксидов, приготовленных методом механоактивации и последующего прокаливания. Катализаторы охарактеризованы с применением рентгенофазового анализа, спектроскопии диффузного отражения, температурно-программируемого восстановления и адсорбционных измерений. Окисление кумола проводилось в статическом реакторе; изучено влияние состава и количества оксидов, температуры (60–90 °С) и времени реакции на конверсию субстрата и состав продуктов окисления. Выявленные закономерности объяснены в рамках механизма цепного радикального окисления с учетом характеристик оксидов. Обнаружен сильный промотирующий эффект фенантролина на активность Cu(Mg)Al-оксидов и установлены оптимальные условия окисления, обеспечивающие селективное получение гидроперекиси кумола как наиболее востребованного продукта окисления (более 90 % при конверсии кумола 30 %).

Liquid-phase oxidation of cumene with molecular oxygen in the presence of Cu-containing oxides obtained by mechanical activation (CuMgAl-LDH) and subsequent calcination (CuMgAl-oxides) was studied. Mixed oxides were characterized by X-ray phase analysis, N2 and NH3 adsorption, SDO and TPR. Cumene oxidation was carried out in a static reactor; the influence of the composition and amount of oxides, temperature (60 - 90 ᴼС) and reaction time on the substrate conversion and products formation was studied. The revealed regularities are explained within the framework of the mechanism of chain radical oxidation, taking into account the features of the oxides. A strong promoting effect of phenanthroline on the activity of CuMgAl oxides was discovered and optimal oxidation conditions were established, ensuring the selective production of cumene hydroperoxide as the most popular oxidation product (more than 90% with a cumene conversion of 30%).

Cu(Mg)Al-оксидыкумолокислениекислородгидроперекись кумолафенантролинCuMgAl-oxidecumeneoxidationoxygencumene hydroperoxidephenantrolineАвторы благодарят ЦКП «Национальный центр исследования катализаторов» и его сотрудников канд. хим. наук А.А. Леонову, канд. хим. наук Т.В. Ларину, канд. физ.-мат. наук С.В. Черепанову за помощь в изучении физико-химических характеристик катализаторов. Работа выполнена при финансовой поддержке Министерства науки и высшего образования РФ в рамках государственного задания Института катализа СО РАН (проекты FWUR-2024-0035 и FWUR-2024-0039).The authors thank the National Center for Catalyst Research and its staff, including A.A. Leonova, Ph.D. in Chemistry, T.V. Larina, Ph.D. in Chemistry, and S.V. Cherepanova, Ph.D. in Physics and Mathematics, for their assistance in studying the physicochemical characteristics of the catalysts. 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The authors declare that there are no conflicts of interest present.