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  • 1.
    Gard Timmerfors, Jessica
    et al.
    Umeå University, Sweden.
    Blomberg Saitton, David
    RISE - Research Institutes of Sweden (2017-2019), Bioeconomy, Processum.
    Sjölund, Torbjörn
    MoRE Research, Sweden.
    Jönsson, Leif J.
    Umeå University, Sweden.
    Impregnation of wood chips for acidic processes and the influence of wood chip length2018In: The 8th Nordic Wood Biorefinery Conference:  NWBC 2018: proceedings / [ed] Hytönen Eemeli, Vepsäläinen Jessica, Espoo: VTT Technical Research Centre of Finland , 2018, p. 195-195Conference paper (Other academic)
  • 2.
    Golets, Mikhail
    et al.
    Umeå University, Sweden.
    Ajaikumar, Samikannu
    Umeå University, Sweden.
    Blomberg Saitton, David
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Processum.
    Grundberg, Hans
    Aditya Birla Domsjö Fabriker AB, Sweden.
    Wärnå, Johan
    Åbo Akademi University, Finland.
    Salmi, Tapio
    Åbo Akademi University, Finland.
    Mikkola, Jyri-Pekka
    Umeå University, Sweden; Åbo Akademi University, Finland.
    Liquid phase acetoxylation of α-pinene over Amberlyst-70 ion-exchange resin2012In: Applied Catalysis A: General, ISSN 0926860X, Vol. 435-436, p. 43-50Article in journal (Refereed)
    Abstract [en]

    Heterogeneously-catalyzed and solvent-catalyzed liquid phase acetoxylation of α-pinene with acetic acid acting as both a solvent and a reagent was studied. Both solvent-catalyzed and catalytic experiments were carried out and various reaction conditions were studied. The influence of temperature, pressure, solvent and gas milieu were taken into account. Bornyl, fenchyl, verbenyl as well as α-terpinyl acetates, limonene, camphene and γ-terpinene were found among reaction products. The addition of the catalyst allowed for maximization of the yield of bornyl acetate. The predominant products obtained were α-terpinyl, verbenyl and bornyl acetates. The reaction pathways were identified and evaluated. The aim of this work was to study the feasibility of batch acetoxylation of α-pinene. The analysis of the complex product distribution is not trivial and, consequently, resolving the reaction network was important. The optimized reaction conditions were searched for aiming at an efficient conversion of α-pinene to a mixture of valuable products.

  • 3. Golets, Mikhail
    et al.
    Larsson, William
    Ajaikumar, Samikannu
    Blomberg Saitton, David
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Processum.
    Grundberg, Hans
    Wärnå, Johan
    Salmi, Tapio
    Mikkola, Jyri-Pekka
    A kinetic study of the liquid phase acetoxylation of α-pinene2012In: Topics in catalysis, ISSN 1022-5528, E-ISSN 1572-9028, Vol. 55, p. 649-656Article in journal (Refereed)
    Abstract [en]

    The present study introduces kinetic modeling of liquid phase α-pinene acetoxylation with acetic acid over an ion-exchange resin catalyst. The reaction was carried out in a laboratory scale high-pressure autoclave. α-terpinyl (35 wt%) and bornyl (40 wt%) acetates were the primary products. The predominant reaction pathways were identified and evaluated. © Springer Science+Business Media, LLC 2012.

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