Isomaltulose, a reducing disaccharide, is produced on a technical scale of 30,000 t / a by biochemical transglucosidation of sucrose. It can be used for the synthesis of N-alkyl-isomaltamines, which show an excellent performance as biodegradable surfactants, based on biomass feedstocks. The investigations led to the result, that reductive amination of isomaltulose with n-dodecylamine and hydrogen to give N-n-dodecyl-isomaltamine-1, using a palladium-based catalyst, represents a very promising way for this synthesis, concerning turnover of starting material as well as product selectivity and yield. Within this context, the following aims were examined: Optimization of a palladium-based catalyst, especially concerning the nature and structure of the supporting material as well as the necessary amount of precious metal Optimization of the reaction parameters Development of a kinetic model Realization of a flowsheet for a technical plant (scale: 10 kt / a) and a cost estimate. Investigations take place in a high-pressure batch reaction vessel as well as in a continuous differential loop reactor, which allows direct correlation between reaction rates and reaction parameters (temperature, hydrogen pressure, dwelltime, concentrations, ...). Samples of the reaction mixture are analysed by HPLC, using a reversed-phase-18-column. | English |