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:
Jul. 01, 2003
Filed:
May. 18, 2001
Applicant:
Inventor:
Gerhard Coufal, Leonding, AT;
Assignee:
Agrolinz Melamin GmbH, Linz, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07D / ;
U.S. Cl.
CPC ...
C07C / ; C07C / ; C07D / ;
Abstract
The invention relates to a method for producing urea. According to said method, the off-gases which originate from a melamine plant and essentially consist of NH and CO are introduced into the high-pressure zone of the urea plant by means of ejectors.