Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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A Selective Recovery Condition of Vanadium from Fly Ash Leach Liquor by UV-Spectrophotometry

UV 분광법을 이용한 중유회 용출액으로부터 바나듐의 선택적 회수 조건

  • Kim, Da-Bin (Dept. of Chemical and Biological Engineering, Seokyeong University) ;
  • Na, Su-Bin (Dept. of Chemical and Biological Engineering, Seokyeong University) ;
  • Han, Hyea-Chul (Dept. of Chemical and Biological Engineering, Seokyeong University)
  • 김다빈 (서경대학교 화학생명공학과) ;
  • 나수빈 (서경대학교 화학생명공학과) ;
  • 한혜철 (서경대학교 화학생명공학과)
  • Received : 2016.11.01
  • Accepted : 2016.12.08
  • Published : 2016.12.31
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Abstract

We studied a selective recovery condition of vanadium (V) from FALL (Fly Ash Leach Liquor) produced at a fossil fuel power station using heavy oil. By applying a spectroscopy to quantify the V in a sample, we identified a concentration range V interfered by on presence of metals such as Ni, Fe Also, the optimal vanadium precipitation rate according to the amount of 5.0M $NH_3$ loaded to the sample, solution pH and stirring time. As a result of the experiment, the maximum selective recovery ratio of V was achieved to be higher than 91.5% when the stirring duration was less than 1 minute at pH 7.0, and $25^{\circ}C$.

중유 화력발전소에서 발생되는 중유회를 처리한 용출액(Fly Ash Leach Liquor; FALL)으로부터 V을 선택적으로 회수하기 위한 기초 연구를 UV 분광법을 이용해 수행하였다. Ni, Fe등이 포함된 시료를 분광법으로 V을 정량할 때, Ni, Fe등의 금속이 V 정량에 미치는 범위를 조사하였고 FALL 시료에 5.0M $NH_3$ 사용량과 pH 변화에 따른 금속의 침전율과 교반시간에 따른 금속 침전율의 최적 조건을 조사하였다. $25^{\circ}C$, pH 7.0 (5.0M $NH_3$)에서 선택적인 V의 회수 시점은 교반 시간이 1분 이내일 때로 91.5%의 회수율을 보였다.

Keywords

References

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