HEAT-TREATMENT OF WATER-ABSORBING POLYMERIC PARTICLES IN A FLUIDIZED BED AT A FAST HEAT-UP RATE
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United States of America Patent
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Nov 27, 2014
app pub date -
Dec 18, 2012
filing date -
Jan 27, 2012
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Abstract
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.
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