라테라이트광 활용을 위한 황산용액에서 Diphonix 수지의 니켈, 코발트, 마그네슘 흡착

Adsorption of Ni(II), Co(II), and Mg(II) from Sulfuric Acid Solution by Diphonix Resin for the Utilization of Laterite Ore

  • 이만승 (목포대학교 공과대학 신소재공학과) ;
  • 김상배 (한국지질자원연구원 광물자원연구본부) ;
  • 채종귀 (목포대학교 공과대학 신소재공학과)
  • Lee, Man-Seung (Department of Advanced Materials Science & Engineering, Mokpo National University) ;
  • Kim, Sang-Bae (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Chae, Jong-Gwee (Department of Advanced Materials Science & Engineering, Mokpo National University)
  • 투고 : 2010.08.26
  • 심사 : 2010.09.09
  • 발행 : 2010.09.30

초록

니켈 라테라이트광 황산침출액에 함유된 니켈과 코발트를 마그네슘으로부터 분리하는 것은 유가금속의 회수측면에서 중요하다. 세 금속간의 분리성을 조사하기 위해 니켈과 코발트 및 마그네슘이 단독으로 존재하는 황산용액과 혼합용액에서 Diphonix 수지에 의한 흡착거동을 조사하였다. 금속 농도는 100 ppm으로 고정시키고 황산용액의 pH를 5에서 7사이로 변화시켰다. 상온에서 Diphonix에 의한 세 금속이온의 흡착거동은 Langmuir 등온곡선과 잘 일치하였으며, 각 금속의 최대흡착량을 구했다. 세 금속이 혼합된 합성용액에서 Diphonix 농도에 따른 세 금속이온의 흡착거동은 동일하였으며 Diphonix 수지로 니켈과 코발트를 마그네슘으로부터 분리하는 것은 어렵다.

It is of importance to separate Ni(II) and Co(II) from Mg(II) in solution which was leached from nickel laterite ore. In order to investigate the possibility of separating Ni(II) and Co(II) from Mg(II), adsorption behavior of the three metals from individual and mixed sulfate solutions was investigated by using Diphonix resin. The concentration of each metal in solution was fixed at 100 ppm and the pH of the sulfuric acid solution was changed from 5 to 7. At ambient temperature, the adsorption behavior of the three metal ions followed Langmuir adsorption isotherm. The loading capacity of Diphonix resin for the three metal ions was obtained from the Langmuir isotherm. Since adsorption behavior of the three metal ions from the mixed solution was similar to each other, it was found to be difficult to separate Ni(II) and Co(II) from Mg(II) by using Diphonix resin.

키워드

참고문헌

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