Description
The pellets or flakes are crystallized and subsequently fed to the preheater of the reactor with a temperature of approx. 160°C for the further increase up to reaction temperature. Then the material is transferred into the reactor, where the iV increase and decontamination take place. After the reaction time, which depends on the final iV, the pellets/flakes are cooled below reaction temperature and transferred either directly to the production extruder without the requirement of further drying or, after further cooling, transferred to a storage silo. The final products are decontaminated, iV increased pellets or flakes with an AA content less than 1 ppm.
