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A graphic analysis of the processing of phosphorites from Koksu (Karatau deposit) into extraction phosphoric acid (EPA) by the dihydrate–hemihydrate method was performed according to the equilibrium solubility diagram of… Click to show full abstract
A graphic analysis of the processing of phosphorites from Koksu (Karatau deposit) into extraction phosphoric acid (EPA) by the dihydrate–hemihydrate method was performed according to the equilibrium solubility diagram of the CaO–P2O5–SO3–H2O system. It was shown theoretically that EPA with 30.0% P2O5 can be obtained for practical purposes from common phosphate raw material of Koksu (24.5% P2O5). The main concentration and mass parameters that underlie the experiments on process development were evaluated.
Journal Title: Theoretical Foundations of Chemical Engineering
Year Published: 2019
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