Process and apparatus for producing urea granules

Details Process and apparatus for producing urea granules Process and apparatus for producing urea granules

C - Chemistry, Metallurgy

05

C

23/391, 117/46.8

C05C 9/00 (2006.01) B01J 2/16 (2006.01)

Patent

CA 1118293

- 51 - ABSTRACT OF THE DISCLOSURE Urea granules having a desired size are produced in a fluidized bed formed in a vertical cylindrical vessel which is partitioned into an upper compartment and a lower compartment by means of a funnel shaped partition having numerous holes through which the lower compartment is connected to the upper compartment, by: (A) feeding urea solid seed particles into the upper compartment; (B) atomizing and injecting upward a liquid containing a material to be incorporated onto the urea seed particles into the upper compartment through a nozzle having a top thereof located just above a center of the bottom of the funnel-shaped partition, (C)-(1) upwardly blowing a number of streams of an inert gas having a temperature of from 50 to 98°C into the upper compartment through the holes of the funnel-shaped partition; (C)-(2) blowing upward a stream of an inert gas having a temperature of from 30 to 120°C into the upper compartment through an annular opening formed in the bottom of the funnel-shaped partition and surrounding the atomizing nozzle, whereby the atomized liquid droplets can adhere to the urea seed particles and be dried or solidified while the particles are circulated in a fluidized bed in the upper compartment; (D) discharging the resultant urea granules from the upper compartment through the annular opening and; (E) discharging exhaust gas from the top end of the upper compartment.

322444

Affiliated with

Also associated with

Rating

Process and apparatus for producing urea granules does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and apparatus for producing urea granules, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for producing urea granules will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-429299