RESULTS OF COMPUTATIONAL AND EXPERIMENTAL STUDIES ON THE PRODUCTION OF NP-FERTILIZERS WITH A REGULATED RATIO OF NUTRIENTS

Abstract

Computational and experimental studies were carried out to obtain NP-fertilizers with a regulated ratio of nutrients. The results of the research showed the feasibility of obtaining NP-fertilizers with adjustable nutrient balance, based on 64-71% of the concentration of the solution of ammonium nitrate, obtained by traditional technology of production of ammonium nitrate after the first stage residue, as well as phosphate. A mathematical model for regulating the ratios of nutrients in the target product has been developed. Calculation and experimental methods of the products obtained with the ratio of nutrients N:P2O5 11:11; 13:10; 19:7; 21:6; 23:5 in % or mass ratios 1:1; 1,3:1; 2,7:1; 3,5:1; 4,6:1. The composition and properties of production samples were studied with the use of normative methods of analysis, the consumption parameters of the initial substances per 1 ton of the target product were determined, the nutrient content of the product was found. The calculated and experimental data are in good agreement - the average deviation between the experimental and calculated values does not exceed 1.0%. From the results of the research it follows that the resulting NP - fertilizers fully meet the regulatory requirements for fertilizer products of serial production.

References

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