METHOD OF DETERMINING COMPOSITIONS OF HIGHLY CONCENTRATED LIQUID COMPOUND FERTILISERS Russian patent published in 2014 - IPC C05G1/00 

FIELD: chemistry.

SUBSTANCE: invention relates to agriculture. A method of producing compositions of highly concentrated liquid compound fertilisers is based on obtaining experimental data and constructing an (n+1)-corner diagram, the vertices of which correspond to fertiliser components (n) and water, wherein selection of components and optimisation of compositions is carried out based on the obtained experimental data on phase equilibria in multicomponent systems containing starting components: inorganic salts, inorganic acids, carbamide and water, constructing phase diagrams, setting the ratio of nutrients N, P₂O₅ and K₂O and determining the ratio and maximum concentration of components in the liquid compound fertiliser from the diagrams.

EFFECT: invention enables to determine the optimum composition of a liquid compound fertiliser based on given ratios N:P₂O₅:K₂O or determine the maximum possible concentration of components of a liquid compound fertiliser, while maintaining stability of the composition during storage.

6 dwg, 1 tbl, 3 ex