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- W2096689497 abstract "코발트 정광으로부터 코발트와 구리의 회수를 위한 환경친화적인 침출공정 개발의 일환으로 유기산을 침출제로 사용하여 각 금속의 침출 거동에 대하여 기초 연구를 실시하였다. 주요 실험 변수로는 유기산 종류 및 농도, 반응 시간 및 온도 그리고 고액농도비 등 코발트와 구리의 침출에 영향을 미칠 수 있는 인자들에 대하여 고찰하여 최적 조건을 얻고자 하였다. 실험 결과 유기산중 구연산이 코발트 및 구리의 침출에 효과적이었다. 한편, 구연산을 이용한 침출실험 결과 구연산의 농도가 2.0M에서 코발트 99 %, 구리 95%, 니켈 70%의 높은 침출율을 나타내었다. 또한, 과산화수소는 약 3 vol. % 정도 첨가하는 것이 적당하였고, 최적 반응온도는 <TEX>$70^{circ}C$</TEX>이었다. Enviromental friendly leaching process for the recovery of cobalt and copper from the cobalt concentrate was investigated by organic acids as a leaching reagent. The experimental parameters, such as organic acid type, concentrations of leachant, time and temperature of the reaction as well as the solid to liquid ratio were tested to obtain the optinum conditions for the leaching of cobalt and copper. The results showed that citric acid was the most effective leaching reagent among the organic acids used in this experiment. About 99% of cobalt, 95% of copper and 70% of nickel was dissolved by 2.0 M of citric acid. Addition of 3.0 vol.% of hydrogen perioxide was effective to enhance the leaching efficiency and the optinum temperature was found to be about <TEX>$70^{circ}C$</TEX>." @default.
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- W2096689497 date "2011-12-31" @default.
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- W2096689497 title "Chemical Leaching of Co, Cu, Ni, Al, Fe by Organic acid from Cobalt Concentrate" @default.
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- W2096689497 doi "https://doi.org/10.7844/kirr.2011.20.6.063" @default.
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