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<p>The process of ZrCl<sub>4</sub> vapor absorption by a KCl–AlCl<sub>3</sub>–ZrCl<sub>4</sub> melt is studied on a pilot setup within a temperature range of 324–424°C in columns of different types. The dependence of the equilibrium ZrCl<sub>4</sub> concentration on temperature is established within the studied range of temperatures and pressures. The number of trays required to attain the equilibrium concentration is determined. Some recommendations on the reflux condenser operation regimes in the process of extractive ZrCl<sub>4</sub> and HfCl<sub>4</sub> distillation are given.</p>

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Absorption of Zirconium Tetrachloride by a KCl–AlCl3 Melt as Applied to the Extractive Distillation of Zirconium and Hafnium Tetrachlorides

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • A. V. Panfilov,
  • A. V. Korobkov,
  • V. V. Buzmakov,
  • V. V. Tereshin

摘要

The process of ZrCl4 vapor absorption by a KCl–AlCl3–ZrCl4 melt is studied on a pilot setup within a temperature range of 324–424°C in columns of different types. The dependence of the equilibrium ZrCl4 concentration on temperature is established within the studied range of temperatures and pressures. The number of trays required to attain the equilibrium concentration is determined. Some recommendations on the reflux condenser operation regimes in the process of extractive ZrCl4 and HfCl4 distillation are given.