Acid type solid urea-nitric fertilizer

Details Acid type solid urea-nitric fertilizer Acid type solid urea-nitric fertilizer

1984-10-26

1985-03-26

Dixon, Jr., William R.

Chemistry: fertilizers

Processes and products

Inorganic material

71 29, 71 30, 564 32, 564 63, C05C 900, C05B 1106

Patent

active

045071390

ABSTRACT:
The present invention relates to the reaction of phosphate rock with nitric acid and urea to produce nitrogen-phosphorus containing slurries, which slurries, in turn, may be granulated and dried to produce solid N-P fertilizer products with agronomically advantageous low pHs (1.0-4.0). The products have excellent storage characteristics. The improved properties of these products result partially from the formation of a new compound, Ca(H.sub.2 PO.sub.4)(NO.sub.3).CO(NH.sub.2).sub.2, which was discovered during the course of the investigation that led to the instant invention.

REFERENCES:
patent: 3234005 (1966-02-01), Smalter et al.

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