ТЕХНОЛОГИЯ ПОЛУЧЕНИЯ ОДИНАРНЫХ ФОСФОРНЫХ УДОБРЕНИЙ ПУТЕМ ФОСФОРНОКИСЛОТНОЙ АКТИВАЦИИ ФОСФОРИТОВ ЦЕНТРАЛЬНЫХ КЫЗЫЛКУМОВ

Аннотация

Subject of the inquiry: rock phosphated meal, the washing up concentrate, thermoconcentrate, mineralizated mass, dusty fraction of the Central Kyzilkum phosphorites, single phosphated fertilizers. Aim of the inquiry: development of the technology of reception single phosphated fertilizers form above - mentioned viewes of the phosphated raw of Central Kyzilkum. Method of inquiry: chemical and physico-chemical methods. The results achieved and their novelty: for the first time the single high -concentrated phosphorated fertilizers with large content of assimilated and water -soluble forms P2O5 is produced from the poor high - carbonizated phosphated raw by the method of its phosphate - acidic activation and by acidic - thermal processing. Practical value: the agriculture has received extremely needed the single -phosphated fertilizers for applying under autumn ploughing. The results of this work permit to involve into production of the phosphated fertilizers such the large - tonnaged waste of Kizilkum phosphorited combinate as mineralizated mass and dusty fraction. Degree of embed and economic effectivity: the laboratory findings have test - operates on the large model plant. During 2010y have planning the industrial test at Almalyk Open Society “Ammophos - Maksam”. The carried out agrochemical testings showed high efficiency of the new fertilizers. The agricultural demand in single phosphated fertilizers for applying them under autumn ploughing only on cotton and cereal crops has constitutes 272 - 292 thousand tons P2O5 by year. Now only simple ammoniated superphosphate producing by Kokand plant in amount 22,9 thousand tons P2O5 by year, maybe used as single phosphated fertilizer under autumn polughing. Sphere of usage: plants of State joint - stock company “Uzkimyosanoat”, agriculture.