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. 24, 2025
Filed:
Jul. 06, 2023
Applicant:
Stamicarbon B.v., Sittard, NL;
Inventors:
Ahmed Abdelmagid, Sittard, NL;
Wilhelmus Hubertus Geurts, Born, NL;
Assignee:
Stamicarbon B.V., Sittard, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 251/62 (2006.01); C07C 273/04 (2006.01); C07C 273/12 (2006.01); C07C 273/16 (2006.01); C07D 251/60 (2006.01);
U.S. Cl.
CPC ...
C07C 273/12 (2013.01); C07C 273/04 (2013.01); C07C 273/16 (2013.01); C07D 251/60 (2013.01); C07D 251/62 (2013.01);
Abstract
The disclosure pertains to a process for the production of urea and melamine, wherein off-has from a high pressure melamine plant is combined with a urea liquid obtained from flashing of a urea synthesis solution. Also disclosed is a system for the combined production, and the modification of an existing plant or system.