Production of Complex Fertilizers from Phosphorite Waste of the Central Kyzylkum
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The article presents research findings on the production of complex fertilizers by neutralizing phosphorite waste from the Central Kyzylkum Desert with an ammonia solution after partial decomposition using nitric acid. The study examines complex mineral fertilizers containing nitrogen and phosphorus (PN), produced by decomposing phosphorite samples at varying rates (40-90%) and neutralizing the resulting sludge with an ammonia solution at pH levels between 5.5 and 8.5. The research analyzes all forms of P2O5 and CaO (total, plant-soluble, and water-soluble), along with the total nitrogen content, which were the key components in the produced samples.
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