Technology of obtaining of potassium dihydrophosphate in the system with salting-out

Мазунин, С. А.; Chechulin, V. L.; Frolova, S. A.; Кистанова, Н. С.

doi:10.1134/s107042721003033x

Cited by 4 publications

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“…Potassium dihydrogen phosphate can be manufactured by a reaction of potassium chloride with phosphoric acid or phosphate. , However, the potassium dihydrogen phosphate solution produced often contains KCl and H 3 PO 4 . , The crystallization process is an important step in producing KH 2 PO 4 . The phase equilibrium of KH 2 PO 4 + KCl + H 3 PO 4 is very important in crystallization and separation processes.…”

Section: Introductionmentioning

confidence: 99%

Phase equilibrium in the System KH₂PO₄ + KCl + H₃PO₄ at 298.15 K and 308.15 K

et al. 2017

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The solubility of (KH 2 PO 4 + KCl + H 3 PO 4 ) at 298.15 K and 308.15 K were determined, using isothermal solution saturation. The equilibrium phase solid was verified by X-ray diffraction (XRD). On the basis of the experimental data, the phase diagrams were plotted. The crystalline regions of KH 2 PO 4 and KCl were determined. The phase equilibrium in different phosphoric acid concentrations are compared and discussed. This comparison further illustrates that the phosphoric acid concentration can influence the equilibrium besides temperatures. All results can offer a fundamental basis for crystallization and separation processes.

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Section: Introductionmentioning

confidence: 99%

Phase equilibrium in the System KH₂PO₄ + KCl + H₃PO₄ at 298.15 K and 308.15 K

et al. 2017

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“…Potassium chloride, as a basic raw material, is widely used in the manufacturing of various potassium salt or alkali. Potassium dihydrogen phosphate can be manufactured by reaction of potassium chloride with phosphoric acid or phosphate. , However, the potassium dihydrogen phosphate solution produced often contains many impurities, like chloride ions. , The crystallization process is an important step in producing KH 2 PO 4 . The purity, crystal shape, , and growth rate − of KH 2 PO 4 crystal were obviously affected.…”

Section: Introductionmentioning

confidence: 99%

“…2,3 However, the potassium dihydrogen phosphate solution produced often contains many impurities, like chloride ions. 4,5 The crystallization process is an important step in producing KH 2 PO 4 . 6 The purity, 7 crystal shape, 8,9 and growth rate 10−12 of KH 2 PO 4 crystal were obviously affected.…”

Section: ■ Introductionmentioning

confidence: 99%

Phase Equilibrium in the Aqueous Ternary System KH₂PO₄+ KCl +H₂O at (288.15 and 303.15) K

et al. 2015

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In this study, the solubility and density of a ternary system (KH 2 PO 4 + KCl + H 2 O) at (288.15 and 303.15) K were determined, using isothermal solution saturation and wet residues. The equilibrium solids were detected by the Schreinemaker's method of wet residues and verified by X-ray diffraction (XRD). According to the experimental data, the diagram of density versus composition and the phase diagram were plotted. The crystallization regions of KH 2 PO 4 and KCl were determined, and the crystallization region of KH 2 PO 4 was much larger than that of KCl. The density of the saturated solution was calculated, and the model precision was tested. All results can offer fundamental basis for crystallization and separation processes in chemical industry.

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Applied aspects of use of amines for the production of inorganic salts in systems with salting-out

Мазунин

Chechulin

2010

Russ J Appl Chem

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Technology of obtaining of potassium dihydrophosphate in the system with salting-out

Cited by 4 publications

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Phase equilibrium in the System KH₂PO₄ + KCl + H₃PO₄ at 298.15 K and 308.15 K

Phase equilibrium in the System KH₂PO₄ + KCl + H₃PO₄ at 298.15 K and 308.15 K

Phase Equilibrium in the Aqueous Ternary System KH₂PO₄+ KCl +H₂O at (288.15 and 303.15) K

Applied aspects of use of amines for the production of inorganic salts in systems with salting-out

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Technology of obtaining of potassium dihydrophosphate in the system with salting-out

Cited by 4 publications

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Phase equilibrium in the System KH2PO4 + KCl + H3PO4 at 298.15 K and 308.15 K

Phase equilibrium in the System KH2PO4 + KCl + H3PO4 at 298.15 K and 308.15 K

Phase Equilibrium in the Aqueous Ternary System KH2PO4+ KCl +H2O at (288.15 and 303.15) K

Applied aspects of use of amines for the production of inorganic salts in systems with salting-out

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About

Phase equilibrium in the System KH₂PO₄ + KCl + H₃PO₄ at 298.15 K and 308.15 K

Phase equilibrium in the System KH₂PO₄ + KCl + H₃PO₄ at 298.15 K and 308.15 K

Phase Equilibrium in the Aqueous Ternary System KH₂PO₄+ KCl +H₂O at (288.15 and 303.15) K