Production of nitrogen-phosphorus-potassium fertilizers based on washed hot concentrate, ammonium nitrate and potassium chloride

Mineral fertilizers are known to be one of the most effective means of increasing crop yields. The solution of these problems is achieved by increasing the efficiency of fertilizers and applying the most optimal methods of their application and improving their physical and chemical properties.The article considers the process of obtaining a new type of fertilizer based on porridge of chlorophosphoric acid, urea (or 70–72% urea solution) and potassium chloride of a washed thermocouple of Central Kyzylkums concentrated in hydrochloric acid. The process of producing complex fertilizers was carried out in the laboratory in a laboratory plant consisting of a special tubular glass reactor. For this, Central Kyzylkum was washed and burned P₂O₅ - 25,71%; CaO - 55,68%; CO₂ - 2,83%; MgO - 1,19%; R₂O₃ - 3,79%; SO₃ - 5,01% phosphocentrate was treated with incomplete 31.4% hydrochloric acid standards. The results showed that total nitrogen and potassium are 10.44%, phosphorus is 20.09%, and total calcium is 27.60% with an acid ratio of 45% and a nutrient ratio of N:P₂O₅:C₂O=1:2:1. reaches. At the same time, 51.02% of total phosphorus and 29.71% of total calcium are in the form absorbed by plants. The amide and nitrate forms of nitrogen are 10.04 and 0.39%, respectively. Total nutrients 49.17%.