HEAT-TREATMENT OF WATER-ABSORBING POLYMERIC PARTICLES IN A FLUIDIZED BED

The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature in the range of from 100 to 250° C. in a fluidized bed dryer under specifically adapted apparatus and method conditions, the use of a fluidized bed dryer for heat-treating water-absorbing...

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Bibliographische Detailangaben
Hauptverfasser:	AUERNIG SABINE, HAGER MARC, KOHLER HANS-PETER, LACKER ELISABETH, PLOCHINGER HARALD, GARTNER HERBERT
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BLASTING CHEMISTRY COMPOSITIONS BASED THEREON DRYING DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM GENERAL PROCESSES OF COMPOUNDING HEATING LIGHTING MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WEAPONS WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature in the range of from 100 to 250° C. in a fluidized bed dryer under specifically adapted apparatus and method conditions, 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.