| 摘要 |
The invention relates to chemical industry. A method for obtaining of stabilized ammonium nitrate comprises the decomposition of phosphoprous-containing raw namterial with nitric acid, separation of acid-insoluble deposit, and obtained solution is supplied to neutralization, evaporation and granulation. As phosphoprous-containing raw namterial depleted phosphorites are used, neutralization is carried out in ВТН unit, wherein reagents are supplied: calculated quantity of nitric acid, ammonium as well as obtained solution of nitric acid extraction, containing 3.0-4.0 % POtotal and 6.75-9.0 % СаО calculated for finished product. The use of the invention allows obtaining of ammonium nitrate of high strength. |
