Method for the Continuous Production of Water Absorbent Polymer Particles

A process for continuously preparing water-absorbing polymer beads, comprising

• i) polymerization of a monomer solution to obtain a polymer gel,
• ii) drying of the polymer gel on a forced-air belt dryer, the forced-air belt dryer having at least one drying chamber,
• iii) comminution of the dried polymer gel to obtain polymer beads,
• iv) classification of the polymer beads and
• v) postcrosslinking of the classified polymer beads,
• wherein a water content of the polymer gel, during or after the drying of the polymer gel ii) and before the postcrosslinking v), is determined continuously and used as a controlled variable for the forced-air belt dryer, and the controller output derived from the control procedure is adjusted continuously in the event of a deviating target value.