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:
Apr. 13, 2021
Filed:
Jul. 24, 2020
Applicant:
Stamicarbon B.v., Sittard, NL;
Inventors:
Ronny Albert Mathijs Pustjens, Sittard, NL;
Johan Albert Arno Van Den Tillaart, Sittard, NL;
Assignee:
STAMICARBON B.V., Sittard, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 19/00 (2006.01); C07C 273/04 (2006.01); B01D 5/00 (2006.01); C07C 273/16 (2006.01); C07C 273/14 (2006.01);
U.S. Cl.
CPC ...
C07C 273/04 (2013.01); B01D 5/00 (2013.01); B01D 5/0054 (2013.01); B01D 5/0057 (2013.01); B01J 19/0053 (2013.01); C07C 273/14 (2013.01); C07C 273/16 (2013.01); B01D 2257/406 (2013.01); B01D 2257/504 (2013.01); B01D 2257/70 (2013.01); B01J 2219/0286 (2013.01);
Abstract
Processes and plants for the production of purified urea solution are described. In a described urea production process, urea is produced in a synthesis section without a high pressure stripper and the urea solution is subjected to purification after the recovery section, to give purified urea solution and off-gas. The purification comprises e.g. steam stripping.