Highly selective synthesis of acrylic acid from lactide in the liquid phase

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autorinnen und Autoren: Nagengast J, Hahn S, Taccardi N, Kehrer M, Kadar J, Collias D, Dziezok P, Wasserscheid P, Albert J
Zeitschrift: ChemSusChem
Jahr der Veröffentlichung: 2018
ISSN: 1864-5631


A new reaction system for the highly selective, hydrobromic acid catalyzed conversion
of lactide into acrylic acid under mild conditions is reported. The applied liquid
reaction system consists of a temperature‐stable bromide‐containing ionic liquid and
2‐bromopropionic acid as a source of dry HBr, with no volatile organic solvent being
used. This allows for the in situ removal of the formed acrylic acid, leading to an
unmatched acrylic acid selectivity of over 72 % at full lactide conversion. Accounting
for leftover reaction intermediates on the way to acrylic acid, which could be recycled
in an elaborate continuous process, the proposed reaction system shows potential for
acrylic acid yields well above 85 % in the liquid phase. This opens new avenues for
the effective conversion of biogenic lactic acid (e.g., obtained by fermentation from
starch) to acrylic acid. The resulting bio‐acrylic acid is a highly attractive product
for, for example, the diaper industry, where we expect consumers to be especially
sensitive to aspects of sustainability.

FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Albert, Jakob Dr.-Ing.
Lehrstuhl für Chemische Reaktionstechnik
Hahn, Simon
Lehrstuhl für Chemische Reaktionstechnik
Kadar, Julian
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Kehrer, Matthias
Lehrstuhl für Chemische Reaktionstechnik
Nagengast, Jens
Lehrstuhl für Chemische Reaktionstechnik
Taccardi, Nicola Dr.
Lehrstuhl für Chemische Reaktionstechnik
Wasserscheid, Peter Prof. Dr.
Lehrstuhl für Chemische Reaktionstechnik


Nagengast, J., Hahn, S., Taccardi, N., Kehrer, M., Kadar, J., Collias, D.,... Albert, J. (2018). Highly selective synthesis of acrylic acid from lactide in the liquid phase. ChemSusChem. https://dx.doi.org/10.1002/cssc.201800914

Nagengast, Jens, et al. "Highly selective synthesis of acrylic acid from lactide in the liquid phase." ChemSusChem (2018).


Zuletzt aktualisiert 2019-14-03 um 13:06