Heat treating of material in finely divided form

Details Heat treating of material in finely divided form Heat treating of material in finely divided form

C - Chemistry, Metallurgy

08

J

18/1211

C08J 3/00 (2006.01) B01F 7/04 (2006.01) B01F 15/06 (2006.01) B29B 7/48 (2006.01) B29B 13/00 (2006.01)

Patent

CA 1156417

Abstract of the Disclosure Heat treatment of a material, e.g. a finely divided resin, wherein the material is introduced into a drum and agitated by rotating, spaced blades which whirl the material into a dispersion. The action of the blades heats the resin particles so that heat for the heat treatment is provided. The heat treatment can be, e.g. to cause small resin particles to coalesce with larger particles in the pro- cessing of polyethylene reacter flake, to improve flowability of the resin, or to admix resin and additive; To obtain in- creased capacity while the size of the apparatus is main- tained within reasonable limits, two intersecting, generally cylindrical drums, each outfitted with an agitator, are used. Apparently the dispersions of the respective agitators slam into each other in the vicinity of the intersection causing additional heating.

375382

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