METHOD OF PRODUCING PHOSPHORUS-CONTAINING FERTILISERS Russian patent published in 2010 - IPC C05B3/00 C25B1/18 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry and is used to produce inorganic fertiliser, specifically to methods of producing phosphorus-containing fertilisers through electrolysis. The invention can also be used to process soda production wastes. The method of producing phosphorus-containing fertilisers involves production of the said fertiliser through electrolysis in a two-compartment electrolysis cell with current density of 0.1 A/cm², in whose anode chamber of which there is a still waste liquid and a 10% phosphoric acid solution in the cathode chamber. Electrolysis is carried out until a weakly acidic medium (pH=4 - 5) is obtained.

EFFECT: method is cheap due to recycling of large tonnage soda production wastes; chlorine, which is used to obtain chlorine-containing compounds, is released as a by-product during electrolysis; an environmentally safe product is obtained.

1 dwg, 2 ex