Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Ion Exchange of Gold(III) from Ammonium Chloride Solution by Anionic Resins

염화암모늄용액에서 음이온 교환수지에 의한 금(III)의 이온교환

  • Ahn, Hyeong Hun (Department of Advanced Material Science & Engineering, Institute of Rare Metal, Mokpo National University) ;
  • Lee, Man Seung (Department of Advanced Material Science & Engineering, Institute of Rare Metal, Mokpo National University)
  • 안형훈 (목포대학교 공과대학 신소재공학과) ;
  • 이만승 (목포대학교 공과대학 신소재공학과)
  • Received : 2018.02.06
  • Accepted : 2018.03.13
  • Published : 2018.04.30
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Abstract

Batch ion exchange experiments of Au(III) were performed from ammonium chloride solution by employing strong anionic exchange resins (Amberlite IRA 402 and AG 1-X8). Au(III) was well loaded into the two resins and the loading behavior of Au(III) into AG 1-X8 was superior to that into Amberlite IRA 402. The loading of Au(III) into AG 1-X8 followed Langmuir adsorption isotherm and the experimentally determined loading capacity was 355 mg/g. Au(III) was successfully eluted by $HClO_4$ from the loaded AG 1-X8 and the elution percentage of Au(III) increased with the concentration of $HClO_4$.

강염기성 음이온 교환 수지인 Amberlite IRA 402와 AG 1-X8로 염화암모늄용액에 함유된 금(III)의 이온교환을 회분식 실험으로 조사했다. 두 수지 모두 염화암모늄용액에서 금(III)을 잘 흡착했으며, AG 1X-8이 Amberlite IRA 402보다 우수한 금(III) 흡착거동을 보였다. AG 1-X8 수지의 금(III)의 흡착은 Langmuir 등온흡착과 잘 일치했고 흡착용량은 355 mg/g이었다. AG 1X-8에 흡착된 금(III)은 과염소산으로 세출할 수 있으며, 과염소산의 농도 증가에 따라 세출률이 증가하였다.

Keywords

References

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