Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Haruyuki Morikawa0
Eiji Sakata0
Genshi Nishikawa0
Date of Patent
September 1, 2009
0Patent Application Number
114841670
Date Filed
July 11, 2006
0Patent Primary Examiner
Patent abstract
In a granulating process for preparing granular urea from an aqueous urea solution using a fluidized bed method or a fluidized, spouted bed method, an aqueous urea solution having a urea concentration of 94-98.5 wt % is used and the operational temperature of the fluidized bed is controlled in a range of 110-120° C. to accelerate the drying of a granulated product to thereby give a granular urea product having a moisture content of 0.3 wt % or less.
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