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:
Dec. 26, 2000
Filed:
May. 03, 1999
Kees Jonckers, Susteren, NL;
Hendrik F Perree, Maastricht, NL;
DSM N.V., Heerlen, NL;
Abstract
A reactor for the synthesis of urea from ammonia and carbon dioxide at elevated temperature and pressure is provided with perforated reactor trays in which at least a pair of spaced part perforated reactor trays each have at least one opening at least a distance closer towards the periphery than the center, such as on or near the edge of a perforated reactor tray, and each of such pair perforated reactor trays is provided with a tube with a height of 50-500 mm located on and depending from an underside, e.g. bottom side in a column reactor, of each of such pair perforated reactor tray. The tubes extend to no more than 1/3 of the distance between two adjacent reactor trays.