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Zeta Potential Study of Thermally Treated Dolomite Samples in Electrolyte Solutions by Reda Marouf; Kheira Marouf-Khelifa; Jacques Schott; Amine Khelifa is a Materials Science article available to read on EtoBox.

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In this paper, electrokinetic properties of raw dolomite and thermally treated dolomite have been investigated as function of concentrations dolomite of various electrolytes such as NaCl, KCl, MgCl 2 , BaCl 2 , AlCl 3 and Na 2 HPO 4 . The dolomitic solids such as D-600, D-800, D-900 and D-1000 were obtained further to calcinations at 600, 800, 900 and 1000 °C, respectively, during 2 h. From the electric potential results, it was found that the zeta potential of dolomite is not affected by the solid concentration. Isoelectric point of dolomite was determined at pH 6.8; H + and OH À are potential determining ions of dolomite. The monovalent cations are indifferent electrolytes for dolomitic solids samples, whereas MgCl 2 and BaCl 2 reverse the sign of surface charge of dolomite, while Na 2 HPO 4 is potential determining ion of D-800, D-900 and D-1000.

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Author

Reda Marouf; Kheira Marouf-Khelifa; Jacques Schott; Amine Khelifa

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1387-1811)

Published

2009

Language

EN

Field

Materials Science (Physical Sciences)