PRODUCTION OF LONG LIFE UREA FERTILIZERS CONTAINING PARA-DIHYDROXYL-BENZENE

PRODUCTION OF LONG LIFE UREA FERTILIZERS CONTAINING PARA-DIHYDROXYL-BENZENE

This invention is specialized by the addition of 0.05-0.30% of P-dihydroxyl-benzene to urea or urea derivatives in order to provide fertilizers with long life efficiency. This invention provides a process and specific installations for producing such fertilizers. Before granulation P-dihydroxyl-benz...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CAO CHENGMIAN, ZHOU LIKAI, YAN XUSHENG
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
FERTILISERS
MANUFACTURE THEREOF
METALLURGY
NITROGENOUS FERTILISERS
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Beschreibung
Zusammenfassung:This invention is specialized by the addition of 0.05-0.30% of P-dihydroxyl-benzene to urea or urea derivatives in order to provide fertilizers with long life efficiency. This invention provides a process and specific installations for producing such fertilizers. Before granulation P-dihydroxyl-benzene is added to urea and mixed. The mixing equipments comprise of two mixers, tanks for P-dihydroxyl-benzene and two pumps. Fertilizers thus produced give 6-20% more harvest than the conventional means in the experimental farm.