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Machine translation
1. (WO1981002890) MAKING UREA PRILLS AND PRILLS THUS OBTAINED
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/002890    International Application No.:    PCT/NL1981/000006
Publication Date: 15.10.1981 International Filing Date: 24.03.1981
IPC:
B01J 2/04 (2006.01), C05C 9/00 (2006.01)
Applicants:
Inventors:
Priority Data:
8001876 29.03.1980 NL
Title (EN) MAKING UREA PRILLS AND PRILLS THUS OBTAINED
(FR) FABRICATION DE GRANULES D"UREE ET GRANULES OBTENUS PAR CE PROCEDE
Abstract: front page image
(EN)Making urea prills of good impact strength by allowing drops of substantially water-free urea melt to fall, counter current to a cooling gas, through a cooling zone in which a dispersion of crystalline particles with dimensions of between 2 and 10 microns, preferably between 4 and 8, in a quantity of 8-25 mg per m3 of cooling gas, is maintained. The particles may be obtained by grinding crystalline urea.
(FR)Fabrication de granules d"uree possedant une bonne resistance a l"impact en faisant tomber des gouttes d"uree en fusion sensiblement exemptes d"eau a contre courant dans un gaz de refroidissement, au travers d"une zone de refroidissement dans laquelle on maintient une dispersion de particules cristallines ayant des dimensions variables entre 2 et 10 microns, de preference entre 4 et 8 microns, en une quantite de 8-25 mg par m3 de gaz de refroidissement. Les particules peuvent etre obtenues par broyage d"uree cristalline.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)