Process for homogeneously catalyzed, highly selective direct amination of primary alcohols with ammonia to primary amines with a high volume ratio of liquid phase to gas phase and/or high pressures

摘要

The present invention relates to a process for preparing primary amines comprising the process stepsA) provision of a solution of a primary alcohol in a fluid, nongaseous phase,B) contacting of the phase with free ammonia and/or at least one ammonia-releasing compound and a homogeneous catalyst and optionallyC) isolation of the primary amine formed in process step B),characterized in thatthe volume ratio of the volume of the liquid phase to the volume of the gas phase in process step B is greater than 0.05 and/or in that process step B is carried out at pressures greater than 10 bar.