Sea-water solubility phase diagram. Application to an extractive process

Sea-water solubility phase diagram. Application to an extractive process

The main goal of this presentation is to tentatively forecast or improve an extractive process. The sea-water system is described using a graphical representation of the quinary ion-pair system Na , K , Mg /Cl , SO //H O. The operations required by extraction or purification of a sea-water component...

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Veröffentlicht in:Pure and applied chemistry 2002-10, Vol.74 (10), p.1811-1821
Hauptverfasser: Cohen-Adad, R., Balarew, Chr, Tepavitcharova, S., Rabadjieva, D.
Format: Artikel
Sprache:eng
Schlagworte:
Crystallization
Graphical representations
Phase diagrams
Saline water
Seawater
Sodium chloride
Solubility
Water purification
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Beschreibung
Zusammenfassung:The main goal of this presentation is to tentatively forecast or improve an extractive process. The sea-water system is described using a graphical representation of the quinary ion-pair system Na , K , Mg /Cl , SO //H O. The operations required by extraction or purification of a sea-water component are simulated by a path through the solubility diagram.The procedure is applied to isothermal evaporation of Black Sea water at 25 °C, and the balance of the crystallization sequence is determined. In the same way, the cooling of residual brine, after precipitation of pure sodium chloride, is studied.
ISSN:0033-4545
1365-3075
DOI:10.1351/pac200274101811