The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 18, 2024
Filed:
Feb. 09, 2021
Casale SA, Lugano, CH;
Leonardo Marrone, Mercallo, IT;
Paolo Bertini, Lugano, CH;
Matteo Fumagalli, San Fermo della Battaglia, IT;
Casale SA, Lugano, CH;
Abstract
A process for synthesis of urea from ammonia and carbon dioxide wherein: the urea synthesis is performed with a stripping process in a synthesis loop including at least a reactor (), a stripper () and a condenser (); the reactor effluent is treated in the stripper to remove unreacted ammonia and carbon dioxide; the urea solution () from the stripper is sent to a low-pressure recovery section (); the stripper vapours are split into a first portion () directed to the reactor and a second portion () sent to the condenser; the condenser () is a shell-and-tube kettle condenser where condensation of stripper vapours is performed in the tube side (); a carbamate-containing effluent () from the condenser is returned to the reactor.