Diethanolamine was oxidized by gaseous oxygen to N-(2-hydroxyethyl) glycine in an aqueous solution containing sodium hydroxide over a 0.5% Pd-alumina catalyst in the temperature range of 50-80 C and at ambient pressure in a slurry reactor, and the kinetics was investigated. Under the present experimental conditions, all mass transfer resistances were assumed to be insignificant. The catalyst was very active but its activity decreased ...