Heterogeneous catalytic synthesis of methyl lactate and lactic acid from sugars and their derivatives

Päivi Mäki-Arvela, Atte Aho, Dmitry Yu Murzin*

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliKatsausartikkeliTieteellinenvertaisarvioitu

Abstrakti

Recent developments in sugar transformations to methyl lactate and lactic acid are critically summarized. The highest yield of methyl lactate from glucose obtained over Sn(salen)/octylmethyl imidazolium bromide catalyst was 68 % at 160 °C whereas the highest yield of lactic acid of 58 % was achieved over hierarchical Lewis acidic Sn-Beta catalysts at 200 °C under inert atmosphere. In addition to the desired products also humins are formed in water whereas in methanol alkyl glucosides- and -fructosides as well as acetals were generated, especially in the presence of Brønsted-acidic sites. The main challenges limiting the industrial feasibility of these reactions are incomplete liquid phase mass balance closure, complicated product analysis and a lack of kinetic data. In addition to reporting optimized reaction conditions and catalyst properties also catalyst reuse and regeneration as well as kinetic modelling and continuous operation are summarized.

AlkuperäiskieliEnglanti
Sivut4833-4855
Sivumäärä23
JulkaisuChemSusChem
Vuosikerta13
Numero18
DOI - pysyväislinkit
TilaJulkaistu - 15 heinäkuuta 2020
OKM-julkaisutyyppiA2 Arvio tiedejulkaisuussa (artikkeli)

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