I  U  P  A  C




News & Notices

Organizations & People

Standing Committees




. . CI
. . PAC
. . Macro. Symp.

. . Books
. . Solubility Data



Links of Interest

Search the Site

Home Page


Pure Appl. Chem. 74(10), 1811-1821, 2002

Pure and Applied Chemistry

Vol. 74, Issue 10

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

R. Cohen-Adad 1, Chr. Balarew 2, S. Tepavitcharova 2 , and
D. Rabadjieva 2

1 Université Claude Bernard Lyon I, 43 Boulevard du 11 Novembre 1918, 69622, Villeurbanne Cedex, France; 2 Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bontchev Str., Bl.11, 1113 Sofia, Bulgaria

Abstract: 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+, Mg2+/Cl, SO42–//H2O. 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.

* Lectures presented at the 10th International Symposium on Solubility Phenomena, Varna, Bulgaria, 22 -26 July 2002. Other lectures are published in this issue, pp. 1785-1920.

Page last modified 11 December 2002.
Copyright © 2002 International Union of Pure and Applied Chemistry.
Questions or comments about IUPAC, please contact, the Secretariat.
Questions regarding the website, please contact web manager.