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. 05, 2005
Filed:
Mar. 08, 2002
Applicants:
Ermanno Filippi, Castagnola, CH;
Domenico Romiti, Lugano, CH;
Inventors:
Ermanno Filippi, Castagnola, CH;
Domenico Romiti, Lugano, CH;
Assignee:
Urea Casale S.A., , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C273/02 ; C07C273/04 ;
U.S. Cl.
CPC ...
Abstract
A method for the production of synthesis urea from liquid ammonia and gaseous carbon dioxide, comprising the step of feeding separate flows () of liquid ammonia and gaseous carbon dioxide in continuous to a substantially vertical or horizontal column synthesis reactor (), is distinguished in that the feed of liquid ammonia is split up into at least two consecutive sections (ZZ) of said column.