METHODS OF MAKING UREA CALCIUM SULFATE (UCS) USING HIGH SHEAR MIXING

A urea calcium sulfate (UCS) fertilizer granule includes urea, calcium sulfate, and a calcium sulfate urea adduct, and is prepared by a continuous process including: (a) combining urea, calcium sulfate, and water to form an aqueous slurry, wherein the urea is solubilized in the aqueous slurry; (b) m...

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Bibliographische Detailangaben
Hauptverfasser:	BAG, Nilkamal, SHARMA, Yogesh Omprakash, KELLS, Andrew George
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY FERTILISERS FERTILISERS CHARACTERISED BY THEIR FORM FERTILISERS PRODUCING CARBON DIOXIDE INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C MANUFACTURE THEREOF METALLURGY MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05 MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS NITROGENOUS FERTILISERS
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Beschreibung
Zusammenfassung:	A urea calcium sulfate (UCS) fertilizer granule includes urea, calcium sulfate, and a calcium sulfate urea adduct, and is prepared by a continuous process including: (a) combining urea, calcium sulfate, and water to form an aqueous slurry, wherein the urea is solubilized in the aqueous slurry; (b) mixing the aqueous slurry in a high shear mixing apparatus, wherein the high shear mixing apparatus applies a shear of at least 50,000/seconds to the aqueous slurry; and (c) removing at least a portion of the water from the aqueous slurry to form the UCS fertilizer granule. The UCS fertilizer granule includes at least 80% calcium sulfate urea adduct. Methods for making a fertilizer composition including urea calcium sulfate (UCS) fertilizer granules are also described.