Recovery of $ZrO_2$ by Leaching from $LiF-BeF_2-ZrO_2$ Molten Salt in Distilled Water

$LiF-BeF_2-ZrO_2$ 용융염에서 증류수 침출에 의한 $ZrO_2$의 회수 - 증류수에서 $LiF-BeF_2-ZrF_4+ZrO_2$ 용융염의 용해현상 -

  • Received : 2000.07.19
  • Published : 2000.12.25

Abstract

$LiF-BeF_2-ZrF_4$(63-30-7 mol%) molten salt was dissolved up to 0.02g in 1ml of distilled water at room temperature. $ZrO_2$ oxide made from $ZrF_4$ through pyrohydrolysis was recovered by leaching in distilled water with $LiF-BeF_2-ZrF_4$molten salt including it at room temperature. The crystalline sharpness of recovered $ZrO_2$ oxide was not damaged.

$LiF-BeF_2-ZrF_4$(63-30-7 mol%) 용융염은 상온에서 증류수 1ml당 최고 0.02g까지 용해율 99.9%로 용해되었다. 그리고 $ZrF_4$를 열가수분해시켜 제조된 $ZrO_2$ 산화물을 포함하는 $LiF-BeF_2-ZrF_4$ 용융염에서 $ZrO_2$ 산화물을 증류수로 침출시켜 회수하였다. 회수된 $ZrO_2$ 산화물의 결정모양은 손상되지 않았다.

Keywords

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