자원리싸이클링 (Resources Recycling)
- 제10권2호
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- Pages.20-26
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- 2001
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- 2765-3439(pISSN)
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- 2765-3447(eISSN)
石油化學 廢觸媒로부터 過酸化水素를 還元劑로이용한 有價金屬의 황산침출
Sulfuric Acid Leaching of Valuable Metals from Spent Petrochemical Catalyst using Hydrogen Peroxide as a Reducing Agent
초록
석유화학 폐촉매의 유가금속을 회수하기 위하여 과산화수소를 환원제로 사용하여 코발트, 망간, 철의 황산침출거동을 조사하였다. 유가금속의 침출은 반응시작 30분 이내에 모두 이루어졌으며, 고액농도 10 g/L, 0.5N
Sulfuric acid leaching of Mn, Co and Fe from spent petrochemical catalyst was performed using hydrogen peroxide as a reducing agent. Low extraction of Mn, Co and Fe was obtained by only sulfuric acid. When hydrogen peroxide were added as a reducing agent, the high extraction of these metals could be obtained. Different from ordinary leaching, the extraction per-centages of metal components decreased with elevating leaching temperature in this process. Under the optimum condition, the extraction percentages of Mn, Co and Fe were 93.0% , 87.0% and 100% respectively.
키워드