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:
Feb. 03, 2015
Filed:
Aug. 31, 2011
Paul Niehues, Dortmund, DE;
Harald Franzrahe, Dortmund, DE;
Matthias Potthoff, Dortmund, DE;
Luc Albert Vanmarcke, Lembeke, BE;
Paul Niehues, Dortmund, DE;
Harald Franzrahe, Dortmund, DE;
Matthias Potthoff, Dortmund, DE;
Luc Albert Vanmarcke, Lembeke, BE;
Uhde Fertilizer Technology B.V., NW Roermond, NL;
Abstract
A method for producing urea granules having low moisture absorption capacity, with a urea granulator, having a granule flow inlet side and oppositely a granule flow outlet side, forming an axis alongside which granules from a urea solution and a urea/ammonium salt-stream are formed, whereby the solution and the salt-stream are sprayed as a mixture or separately via a feed system unit via various nozzles into the granulator onto a seed material. In this process the highest amount of the salt-stream is sprayed into the granulator at the granule flow inlet side and the amount of the salt-stream is decreased alongside the axis of the granulator from the granule flow inlet side to the granule flow outlet side.