@article{EisenacherVenschottDylongetal.2022, author = {Eisenacher, Matthias and Venschott, Moritz and Dylong, Dominik and Hoelderich, Wolfgang F. and Sch{\"u}tz, Jan and Bonrath, Werner}, title = {Upgrading Bio-Based Acetone to Diacetone Alcohol by Aldol Reaction Using Amberlyst A26-OH as Catalyst}, journal = {Reaction Kinetics, Mechanisms and Catalysis}, volume = {135}, number = {2}, issn = {1878-5190}, doi = {10.1007/s11144-022-02168-z}, institution = {Angewandte Naturwissenschaften (F11)}, pages = {971 -- 986}, year = {2022}, abstract = {The aldol reaction of bio acetone in presence of a strongly basic ion exchange resin was carried out with and without the addition of water in a temperature range between - 30 °C and 45 °C. The conversion, selectivity and service time of the ion exchange resins were investigated in a stirred batch reactor and a continuous fixed bed reactor. For the batch experiments, both conversion and selectivity increased with decreasing temperature. Furthermore, the addition of water to the reaction medium has a positive effect on selectivity and catalyst service time of the resins. For the continuous flow experiments carried out in a fixed bed reactor, the selectivity towards diacetone alcohol is higher than in a batch reactor. This high selectivity is favored by a short contact time which inhibits as expected most of the consecutive reactions.}, language = {en} }