화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2012년 가을 (10/31 ~ 11/02, 대전컨벤션센터)
권호 16권 2호
발표분야 포스터-환경.에너지
제목 Purification of Mg2+ containing solution obtained by leaching Fe-Ni slag
초록 For further processing the Mg2+ containing solution obtained by leaching Fe-Ni slag was purified to remove impurities such as Fe, Mn, Al. The purification was carried out by a standard technique based on oxidation of transition metals and selective precipitation of metal hydroxides of specific pH values. All the impurities can be substantially precipitated from solution within pH 4-9. 85-95% impurities can be removed. We used Mg(OH)2 to adjust pH at 4-7, NaOCl as a oxidant, and NH4OH as a reagent to adjust pH at 7-9. After a proper adjustment of pH, the purified condition is 10-30g/L Mg(OH)2, 20-100 ml/L NaOCl, 30-100 ml/L NH4OH. The concentration of Mg2+ in the purified solution is 35-50 g/L.
저자 Li Yujia1, 최상원1, 김은영1, 박지현1, Kim Viktor2
소속 1전남대, 2(주)삼삼
키워드 Purification; Mg2+ solution; precipitation; Fe-Ni slag
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