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Abstract <p>The equilibrium potentials of palladium in a KCl–PbCl<sub>2</sub>–PdCl<sub>2</sub> melt are measured by the emf method at various temperatures and palladium dichloride contents. The empirical equations of isotherms and polytherms of the equilibrium palladium potentials are derived. The arbitrary standard potentials of palladium in a molten mixture of potassium and lead chlorides are calculated. The changes in the Gibbs energy for palladium dichloride formation from elements in the melt under study are calculated. The partition coefficients of the metals from the alloys are estimated. The results obtained indicate that the industrial separation processes of heavy nonferrous and noble metals in chloride melts are promising.</p>

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Equilibrium Potentials of Palladium in the Mixture of Potassium and Lead Chlorides

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • P. A. Arkhipov,
  • Yu. R. Khalimullina,
  • S. P. Arkhipov,
  • A. R. Mullabaev,
  • Yu. P. Zaikov

摘要

Abstract

The equilibrium potentials of palladium in a KCl–PbCl2–PdCl2 melt are measured by the emf method at various temperatures and palladium dichloride contents. The empirical equations of isotherms and polytherms of the equilibrium palladium potentials are derived. The arbitrary standard potentials of palladium in a molten mixture of potassium and lead chlorides are calculated. The changes in the Gibbs energy for palladium dichloride formation from elements in the melt under study are calculated. The partition coefficients of the metals from the alloys are estimated. The results obtained indicate that the industrial separation processes of heavy nonferrous and noble metals in chloride melts are promising.