Method for heat treatment of polymeric particles hidroabsorventes, use of a fluidized bed dryer, polymeric particles thermally treated

摘要

The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature equal to or above 150 °C in a fluidized bed dryer at a fast heat-up rate, the use of a fluidized bed dryer for heat-treating water-absorbing polymeric particles in continuous or batch mode as well as to the heat-treated polymeric particles obtained by the method of the present invention.