Continuous process for the manufacture of cyanuric acid

Details Continuous process for the manufacture of cyanuric acid Continuous process for the manufacture of cyanuric acid

C - Chemistry, Metallurgy

07

D

23/391, 260/248.

C07D 251/32 (2006.01)

Patent

CA 1141762

Abstract: CONTINUOUS PROCESS FOR THE MANUFACTURE OF CYANURIC ACID A highly-pure cyanuric acid is manufactured in a continuous process whereby urea and/or biuret are dissolved in an inert solvent and circulated at a high velocity and a temperature in the range of about 180°C to about 250°C through a loop between a heat exchanger and a forced circulation evaporative crystallizer body. Cyanuric acid crystallizes from the reaction mixture as it circulates to form a slurry. Ammonia formed during the reaction is removed at reduced pressure as the reaction mixture enters the evaporative crystal- lizer body. A portion of the slurry of cyanuric acid is continuously removed as it circulates through the loop and may be filtered to recover the cyanuric acid. The filtrate is returned to a feed tank and additional solvent, urea or biuret added to meet the concentration desired in the reaction mixture. The solution from the feed tank is added to the reaction mixture circulat- ing through the loop at a rate to replace the volume of cyanuric acid slurry that is removed.

379956

Affiliated with

Also associated with

Rating

Continuous process for the manufacture of cyanuric acid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous process for the manufacture of cyanuric acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous process for the manufacture of cyanuric acid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1110388