자원리싸이클링 (Resources Recycling)
- 제6권1호
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- Pages.11-16
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- 1997
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- 2765-3439(pISSN)
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- 2765-3447(eISSN)
석탄 비산회로부터 황산과 $CaF_2$ 에 의한 알루미늄의 추출
Extraction of Aluminum from Coal Fly Ash with Sulfuric Acid and Calcium Fluoride
초록
국내에서 발생하는 석탄 비산회로부터
The extraction of aluminum from coal fly nsh wa studied using H,SO, and CaF, as leachants Aluminum was effectively extracted by HF formed &om the reaction of H,SO, and CaF, which decomposed the mullite in fly ash. The cffeas of H,SO' and CaFi concentration, reaction temperature, and reacliou time on aluminum extraction were investigated. 97% of aluminum was extracted by 4 M H:SO, and 0.5 M CaF, at 106
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