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Method To Determine MgO and MgOHCl in Chloride Molten Salts

Noah Klammer, Chaiwat Engtrakul

2019enchloridemolten saltschemical monitoringheat transfertitration

Abstract

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A commercial blend of mainly carnallite (KCl MgCl2 6H2O) is considered as a next-generation heat transfer fluid in solar thermal plants. Corrosive properties of MgCl2 hydrates must be addressed at the operating temperatures of 500−720 °C. For successful chemical monitoring of the carnallite heat transfer fluid, an experimental method was developed to separate and titrate for MgO and MgOHCl from solid carnallite. This new method was assessed for error and accuracy. The method’s relative error for MgOHCl was −7.0% for a mass fraction of 9.0 wt % MgOHCl in the carnallite salt. The method’s relative error for MgO was less than +1.0% for a mass fraction of 12.0 wt % MgO in the carnallite salt. Titration results were used to track changes in the MgOHCl concentration in carnallite salt through the carnallite’s dehydration and purification.

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Cite This Work

@article{0abc666d-0976-4a13-8b3e-d8ced9cb955e,
  title={Method To Determine MgO and MgOHCl in Chloride Molten Salts},
  author={Noah Klammer and Chaiwat Engtrakul},
  year={2019},
  language={en}
}
TY  - JOUR
TI  - Method To Determine MgO and MgOHCl in Chloride Molten Salts
AU  - Noah Klammer
AU  - Chaiwat Engtrakul
PY  - 2019
LA  - en
ER  -

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