Abstract:
The invention relates to a method for producing water-absorbing polymer particles, wherein in a mixer water-absorbing polymer particles are coated with a particulate solid matter, the particulate solid matter is dispersed by means of a gas flow, and the supply of the dispersed particulate solid matter ends in the mixer beneath the product bed surface.
Abstract:
The invention relates to a method for producing water-absorbent polymer particles. A liquid is sprayed onto water-absorbent polymer particles in mixing means of at least one thermally insulated and/or heat-traced spray nozzle.
Abstract:
The invention relates to coated or liquid preparations that contain at least one hydroformate of the general formula M3[HCOO]3*HCOOH, wherein M = Na, K, Cs, NH4, and to the use thereof.
Abstract:
The invention relates to a method for the thermal surface post-crosslinking of water-absorbing polymer particles, wherein the polymer particles are coated with an aqueous solution, the coated polymer particles are disaggregated, and the disaggregated polymer particles are thermally surface post-crosslinked by means of a drum-type heat exchanger having an inverse screw flight.
Abstract:
The invention relates to a method for producing water-absorbing polymer particles, wherein in a mixer water-absorbing polymer particles are coated with a particulate solid matter, the particulate solid matter is dispersed by means of a gas flow, and the supply of the dispersed particulate solid matter ends in the mixer beneath the product bed surface.
Abstract:
The invention relates to a method for producing water-absorbent polymer particles. A liquid is sprayed below the product bed surface in a mixer having displaceable mixing tools by means of at least one spray nozzle.