Drying process

Details Drying process Drying process

B - Operations, Transporting

29

B

402/5

B29B 13/06 (2006.01) F26B 3/08 (2006.01) F26B 21/14 (2006.01)

Patent

CA 1317058

ABSTRACT OF THE DISCLOSURE Drying Process When it has been attempted to dry wet polymeric particles in hot air at up to 110°C it has tended to produce discoloration in the product, introduce aggregates into the product, reduce the dispersibility of the product and reduce the integrity of the surface of the particles. A process of drying has now been developed which comprises heating to an elevated temperature the wet particles in an atmosphere substantially free of oxygen gas so that substantially all of the moisture is removed from association with said particles and under such conditions of time and temperature that any substantial deterioration of said particles is minimised. Preferably the atmosphere is of nitrogen.

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