METHOD FOR PREPARING COMPLEX ORGANOMINERAL FERTILIZER Russian patent published in 2003 - IPC

Abstract RU 2219147 C2

FIELD: agriculture, fertilizers. SUBSTANCE: invention relates to method for preparing complex organomineral fertilizers. Ground brown coal is mixed with urea and ground glauconitic sand is added in the mass ratio of components = 0.9:0.9:0.2, respectively. Prepared mixture is subjected for irradiation by high-frequency electromagnetic field with frequency value 1500 ± 50 MHz for 3-5 min, then heated mixture to 75-80 C and hold at this temperature for 5 min at constant stirring. Invention provides the enhancement of output and quality of product and to reduce time of process. EFFECT: improved preparing method. 2 ex

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RU 2 219 147 C2

Authors

Kovalev K.E.

Papajanaki V.V.

Dates

2003-12-20—Published

2002-03-14—Filed