Liquid phase oxidation reactions over MoMCM-41 and WMCM- 41molecular sieves

N. Narender, K. Suresh Kumar Reddy, K. V.V. Krishna Mohan, S. J. Kulkarni, K. V. Raghavan

    Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

    Abstract

    The oxidation of 2-methyl-naphthalene (2MN) to 2-methyl-1,4-naphthoquinone (2MNQ), vitamin K3 (menadione) was carried out over MoMCM-41 mesoporous molecular sieve catalyst. The typical reaction run was carried out using acetic acid as a solvent, hydrogen peroxide (H2O2) as an oxidant, in the temperature range of 60-120°C for 2-12 h. The liquid product selectivities to 2-methyl-1,4-naphthoquinone were 85, 80, 81 and 79 percent at 12, 69, 98 and 99 percent conversions of 2MN for the molar ratio of 2MN:H2O2 equal to 1:2, 1:4, 1:6 and 1:7 respectively. The effect of the various parameters including reaction temperature, molar ratio of 2MN:H2O2, Si/Mo ratio, various catalysts, various solvents, the various molybdenum precursors and amount of catalyst were studied. The selectivity to benzaldehyde was 99 percent at 50 percent conversion of styrene over WMCM-41 mesoporous molecular sieve catalyst.

    Original languageBritish English
    Title of host publicationFrom Zeolites to Porous MOF Materials - The 40th Anniversary of International Zeolite Conference
    PublisherElsevier Inc.
    Pages1877-1883
    Number of pages7
    EditionB
    ISBN (Print)0444530681, 9780444530684
    DOIs
    StatePublished - 2007

    Publication series

    NameStudies in Surface Science and Catalysis
    NumberB
    Volume170
    ISSN (Print)0167-2991

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