METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF POLYAMIDE 6,6 AND COPOLYAMIDES THEREOF

摘要

A process for the continuous production of copolyamide and polyamide, the starting material is selected from adipic acid hexamethylenediamine (ah - salt) and water as well as in the case of a copolyamide, additionally of lactam, with a first process stage, the under pressure and at temperatures between 180 and 280°C. in a first reactor is carried out, whereby after the passage of the first step of the prepolymer at least a subsequent process step is supplied with a second reactor, from which the evaporated water is removed and / or with inert gas is expelled, characterized in that the in the first process step into a gas space of the first reactor with evaporating water containing reaction was parts under the effect of the pressure control in the gas space of the reactor at least a subsequent process step is initiated and the expulsion of the water only in the or the subsequent process steps is carried out.