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:
Oct. 08, 2024
Filed:
Nov. 19, 2021
Applicant:
Casale SA, Lugano, CH;
Inventors:
Leonardo Marrone, Mercallo, IT;
Alberto Benedetti, Como, IT;
Assignee:
Casale SA, Lugano, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 273/16 (2006.01);
U.S. Cl.
CPC ...
C07C 273/16 (2013.01);
Abstract
A process for the production of urea wherein: production of pure urea (U) includes the concentration of an aqueous urea solution () by crystallization; a urea crystallization purge aqueous phase () comprising urea, water and biuret, which is purged from the urea crystallization process, is used in a high-biuret urea processing section () for additional production of urea with a high content of biuret.