This study investigates the solubility behavior of monoammonium phosphate (NH₄H₂PO₄, MAP), potassium nitrate (KNO₃), and magnesium nitrate (Mg(NO₃)₂) in aqueous media within binary and ternary systems using a thermodynamic–phase analysis framework. The polythermal (S–T) approach was employed to parameterize the temperature–solubility relationship; the solubility gradient dS/dTand van ’t Hoff plots were used to obtain approximate values of the dissolution enthalpy ΔH_"sol" . Phase diagrams—interpreted via the Gibbs phase rule, Schreinemakers construction, tie lines, and the lever rule—were utilized to delineate crystallization fields. Based on these results, we propose integrated selective-crystallization regimes combining PID-controlled cooling, seeding, on-line refractometry/densimetry, and mother-liquor recirculation.
| Mualliflar | Ikramov, Muboshir, Zakirov, Bahtiyor |
|---|---|
| Jurnal | Наманган муҳандисликтехнология институти илмийтехника журнали |
| Nashr sanasi | 2025-09-30 |
| Jild | 10 |
| Son | 3 |
| Betlar | 243-248 |
| Til | Ingliz |
| DOI | 10.61151/stjniet.v10i3.881 |
DOI: 10.61151/stjniet.v10i3.881 · Maqolaning asl sahifasi
solubility, polythermal (S–T) analysis, isotherm, selective crystallization, ΔH_, activity coefficient, metastable zone, deliquescence, NH₄H₂PO₄, KNO₃, Mg(NO₃)₂.I
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