Method of pan granulation

Details Method of pan granulation Method of pan granulation

B - Operations, Transporting

01

J

23/374

B01J 2/14 (2006.01) C05C 1/02 (2006.01) C05G 3/00 (2006.01)

Patent

CA 1063778

Method of Pan granulation Abstract of Disclosure The invention provides an improved pan granulation process for the production of low-water or substantilly an- hydrous nitrogenous compounds. Hot nitrogenous melt and cooled particulate solids are fed to a rotating pan to form a crescent-shaped bed of rolling or tumbling particles, the thickness or depth of the bed increasing in the direction towards the periphery of the pan and its overflow sector, i.e. position 2 o'clock to position 6 o'clock when the pan surface is regarded as a clock face and the rotation of the pan is counter-clockwise; according to the invention the cooled solid particles are fed to the pan at a point where the depth of existing material is small, desirably substantially zero, preferably in position 7 to 8 o'clock, if need be by feeding the particles through a tube or the like which extends into the tumbling material on the pan to the proximity of the sur- face of the pan itself. Subsequently, the cooled particles will then be covered by warmer particles tumbling over them. Further, the temperature of the product material as dischar- ged from the pan is controlled to and maintained at about 4 to 25°C below the melting point of the material, and the main part of the melt is sprayed on to the surface of the bed within a zone in the quadrant 12 to 3 o'clock where the coarser particles appear, whereby the highest temperature of the bed will be restricted to a surface layer within this zone.

232280

Affiliated with

Also associated with

Rating

Method of pan granulation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of pan granulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of pan granulation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-338526