Electrokinetic behavior of fluorite as influenced by surface carbonation

J. D. Miller; J. B. Hiskey

doi:10.1016/0021-9797(72)90378-5

Electrokinetic behavior of fluorite as influenced by surface carbonation

J. D. Miller, J. B. Hiskey

Mining and Geological Engineering

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

65 Scopus citations

Abstract

The electrokinetic response of fluorite, as a function of pH, is shown to be due to a surface carbonation reaction of the type:. CaF_2(surf)+CO₃→CaCO_3(surf)+2F. The carbonation reaction can be predicted from thermodynamics of solution chemistry and has been verified by infrared measurements in the laboratory. In systems open to the atmosphere, 300 ppm CO₂, the carbonation reaction begins above pH 8 at which point the electrokinetic response of fluorite becomes strongly dependent on pH. In addition, settling rate experiments revealed that the electrokinetic response of fluorite was sensitive to, and could be predicted by, the partial pressure of carbon dioxide.

Original language	English (US)
Pages (from-to)	567-573
Number of pages	7
Journal	Journal of Colloid And Interface Science
Volume	41
Issue number	3
DOIs	https://doi.org/10.1016/0021-9797(72)90378-5
State	Published - Dec 1972

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

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10.1016/0021-9797(72)90378-5

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title = "Electrokinetic behavior of fluorite as influenced by surface carbonation",

abstract = "The electrokinetic response of fluorite, as a function of pH, is shown to be due to a surface carbonation reaction of the type:. CaF2(surf)+CO3→CaCO3(surf)+2F. The carbonation reaction can be predicted from thermodynamics of solution chemistry and has been verified by infrared measurements in the laboratory. In systems open to the atmosphere, 300 ppm CO2, the carbonation reaction begins above pH 8 at which point the electrokinetic response of fluorite becomes strongly dependent on pH. In addition, settling rate experiments revealed that the electrokinetic response of fluorite was sensitive to, and could be predicted by, the partial pressure of carbon dioxide.",

author = "Miller, {J. D.} and Hiskey, {J. B.}",

note = "Funding Information: ACKNOWLEDGMENT The authors wish to acknowledge the financial support for this research which was provided by NSF, Research Initiation Grant No. GK 5239.",

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AU - Miller, J. D.

AU - Hiskey, J. B.

N1 - Funding Information: ACKNOWLEDGMENT The authors wish to acknowledge the financial support for this research which was provided by NSF, Research Initiation Grant No. GK 5239.

PY - 1972/12

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N2 - The electrokinetic response of fluorite, as a function of pH, is shown to be due to a surface carbonation reaction of the type:. CaF2(surf)+CO3→CaCO3(surf)+2F. The carbonation reaction can be predicted from thermodynamics of solution chemistry and has been verified by infrared measurements in the laboratory. In systems open to the atmosphere, 300 ppm CO2, the carbonation reaction begins above pH 8 at which point the electrokinetic response of fluorite becomes strongly dependent on pH. In addition, settling rate experiments revealed that the electrokinetic response of fluorite was sensitive to, and could be predicted by, the partial pressure of carbon dioxide.

AB - The electrokinetic response of fluorite, as a function of pH, is shown to be due to a surface carbonation reaction of the type:. CaF2(surf)+CO3→CaCO3(surf)+2F. The carbonation reaction can be predicted from thermodynamics of solution chemistry and has been verified by infrared measurements in the laboratory. In systems open to the atmosphere, 300 ppm CO2, the carbonation reaction begins above pH 8 at which point the electrokinetic response of fluorite becomes strongly dependent on pH. In addition, settling rate experiments revealed that the electrokinetic response of fluorite was sensitive to, and could be predicted by, the partial pressure of carbon dioxide.

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Electrokinetic behavior of fluorite as influenced by surface carbonation

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