Calcium nitrate and potassium nitrate fertiliser particles

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United States of America Patent

PATENT NO 12103896
APP PUB NO 20220324763A1
SERIAL NO

17850137

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present disclosure concerns fertilizer particles comprising calcium nitrate and potassium nitrate. It is found that fertilizer particles comprising 43 to 47% w/w calcium nitrate and 46 to 54% w/w potassium nitrate can be produced by melt granulation. Due to undercooling problems, such particles were not expected to be suitable for industrial production by melt granulation. However, the present disclosure provides a composition which forms a low viscosity melt with short solidification time. This was successfully achieved by reducing the water content of a fertilizer melt comprising 43 to 47% w/w calcium nitrate and 46 to 54% w/w potassium nitrate to less than 3% w/w of the melt.

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Patent Owner(s)

Patent OwnerAddress
YARA INTERNATIONAL ASA0277 OSLO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chladek, Petr Porsgrunn, NO 8 2
Myrstad, Amund Skien, NO 5 1
Obrestad, Torstein Ulefoss, NO 14 46

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