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. 26, 2005
Filed:
Sep. 26, 2002
Kees Jonckers, Susteren, NL;
Jozef Hubert Meessen, Gulpen, NL;
Kees Jonckers, Susteren, NL;
Jozef Hubert Meessen, Gulpen, NL;
DSM IP Assets B.V., Heerlen, NL;
Abstract
The invention relates to a process for the preparation of urea from ammonia and carbon dioxide with the application of a synthesis reactor, a condenser, a scrubber and a stripper, wherein an outlet of the stripper, through which a gas stream is discharged during operation, is functionally connected to the inlet of the condenser and to the inlet of the reactor and wherein an outlet of the condenser is functionally connected to an inlet of the scrubber and wherein the obtained reaction mixture is stripped in the stripper in countercurrent with one of the starting materials, wherein the division of the gas stream from the stripper to the condenser and the reactor is completely or partly controlled by one or more controlling elements present in the non-common part of the functional connection between the outlet of the stripper and the inlet of the condenser and/or the inlet of the reactor.