METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY POLYMERIZING DROPLETS OF A MONOMER SOLUTION

摘要

A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase in a reaction chamber, wherein the monomer solution is metered into the reaction chamber via at least one bore, and the diameter is from 210 to 290 mum per bore and the metering rate is from 0.9 to 5 kg/h per bore.