Gold catalysts for selective aerobic oxidation of the lignan hydroxymatairesinol to oxomatairesinol: Catalyst deactivation and regeneration

Olga A. Simakova, Elena V. Murzina, Anne Riikka Leino, Päivi Mäki-Arvela, Stefan Willför, Dmitry Yu Murzin*

*Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    6 Citations (Scopus)

    Abstract

    The lignan oxomatairesinol was synthesized from the biomass-derived lignan hydroxymatairesinol via selective aerobic oxidation over a heterogeneous gold catalyst. The catalyst was prepared by direct ion-exchange and characterized by XRD, TEM and ICP-OES methods. The reaction was carried out at 70 °C and atmospheric pressure in a semi-batch reactor. To reveal the origin of catalyst deactivation, spent catalysts were studied by TEM, XRD, nitrogen physisorption, ICP-OES, TPO, and DSCTGA techniques. Several regeneration procedures were applied-extraction by several solvents and calcinations in the oxidizing atmosphere. The former one was found to be the most effective way for the catalyst regeneration.

    Original languageEnglish
    Pages (from-to)1011-1019
    Number of pages9
    JournalCatalysis Letters
    Volume142
    Issue number8
    DOIs
    Publication statusPublished - Aug 2012
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Biomass
    • Catalyst deactivation
    • Gold catalysts
    • Hydroxymatairesinol
    • Lignans
    • Oxomatairesinol
    • Selective oxidation

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