Electrokinetic properties of some hydrated boron minerals

M. S. Celik; E. Yasar

doi:10.1006/jcis.1995.1311

Electrokinetic properties of some hydrated boron minerals

M. S. Celik^*, E. Yasar

^*Corresponding author for this work

Department of Mineral Processing Engineering

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

Electrokinetic properties of a series of boron minerals, i.e., colemanite, ulexite, inderite, and tunellite, are investigated using the microelectrophoresis technique. Colemanite exhibits an isoelectric point at pH 10.5. Ulexite, inderite, and tunellite yield practically no isoelectric point in the pH range of 7 to 11. While ulexite remains negatively charged, inderite and tunellite show positive charges in the pH range studied. The potential determining ions for these minerals are the constituent lattice cations, Ca²⁺, Mg²⁺, and Sr²⁺, and the anion, B₄O²⁻₇. The H⁺ and OH⁻ ions which indirectly control the ratio of HCO⁻₃/CO²⁻₃ are also the potential determining ions for the hydrated boron minerals studied. The electrokinetic results generally support the adsorption of oppositely charged flotation collectors on boron minerals through electrostatic attraction.

Original language	English
Pages (from-to)	181-185
Number of pages	5
Journal	Journal of Colloid and Interface Science
Volume	173
Issue number	1
DOIs	https://doi.org/10.1006/jcis.1995.1311
Publication status	Published - Jul 1995

Keywords

Boron minerals
Charge
Electrokinetics
Electrophoresis
Zeta potential

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title = "Electrokinetic properties of some hydrated boron minerals",

abstract = "Electrokinetic properties of a series of boron minerals, i.e., colemanite, ulexite, inderite, and tunellite, are investigated using the microelectrophoresis technique. Colemanite exhibits an isoelectric point at pH 10.5. Ulexite, inderite, and tunellite yield practically no isoelectric point in the pH range of 7 to 11. While ulexite remains negatively charged, inderite and tunellite show positive charges in the pH range studied. The potential determining ions for these minerals are the constituent lattice cations, Ca2+, Mg2+, and Sr2+, and the anion, B4O2−7. The H+ and OH− ions which indirectly control the ratio of HCO−3/CO2−3 are also the potential determining ions for the hydrated boron minerals studied. The electrokinetic results generally support the adsorption of oppositely charged flotation collectors on boron minerals through electrostatic attraction.",

keywords = "Boron minerals, Charge, Electrokinetics, Electrophoresis, Zeta potential",

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AU - Celik, M. S.

AU - Yasar, E.

PY - 1995/7

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AB - Electrokinetic properties of a series of boron minerals, i.e., colemanite, ulexite, inderite, and tunellite, are investigated using the microelectrophoresis technique. Colemanite exhibits an isoelectric point at pH 10.5. Ulexite, inderite, and tunellite yield practically no isoelectric point in the pH range of 7 to 11. While ulexite remains negatively charged, inderite and tunellite show positive charges in the pH range studied. The potential determining ions for these minerals are the constituent lattice cations, Ca2+, Mg2+, and Sr2+, and the anion, B4O2−7. The H+ and OH− ions which indirectly control the ratio of HCO−3/CO2−3 are also the potential determining ions for the hydrated boron minerals studied. The electrokinetic results generally support the adsorption of oppositely charged flotation collectors on boron minerals through electrostatic attraction.

KW - Boron minerals

KW - Charge

KW - Electrokinetics

KW - Electrophoresis

KW - Zeta potential

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Electrokinetic properties of some hydrated boron minerals

Abstract

Keywords

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