1938 Ropp Du Pont 2116881 Urea Synthesis – pure ammonia recycle

This patent describes an improved efficiency of the urea process by separating pure ammonia from the  carbamate via distillation. In fact this patent describes the pure ammonia recycle in many urea processes still existing today.



Share this on:

UreaKnowHow.com is an independent group of nitrogen fertilizer specialists with an impressive number of years experience in designing, maintaining and operating nitrogen fertilizer plants.

Solution Providers offer their solutions to improve our member’s plants performance.