입자 크기 및 산의 농도의 변화에 따른 페로니켈 슬래그로부터의 마그네슘 및 철의 침출 특성 연구 (The Extraction Ability of Mg and Fe Components from Ferronickel Slag Depending on Their Particle Size and Hydrochloric Acid Concentration)

서지정보

· 발행기관 : 한국폐기물자원순환학회
· 수록지 정보 : 한국폐기물자원순환학회지 / 28권 / 6호 / 672 ~ 679페이지
· 저자명 : 김은영, 최상원, Kim Viktor, Li Yujia, 박지현

초록

We investigated the effect of hydrochloric acid and particle size of the slag from ferronickel manufacturing process on the extraction of magnesium, iron and silica components. The major chemical composition of the slag sample was as follows : 54.05% SiO_2, 34.33% MgO, 5.51% Fe_2O_3 and the main structure components were forsterite and fayalite of olivine group. The highest extraction of Mg and Fe, correspondingly 81.38% and 80.55%, was provided by leaching the slag particles of 200 mm with 6 M HCl. The main structure of small particles (under 350 mm) was mainly composed of forsterite and the big particles was composed of fayalite, as identified by XRD analysis. As the particle size was decreased from 1,000 mm to 53 mm, the extraction ratio of magnesium was increased from 51.13 to 87.52% and iron was increased from 56.68 to 88.70%. The extraction ratio of magnesium and iron was also increased with increasing HCl concentration.

영어초록

We investigated the effect of hydrochloric acid and particle size of the slag from ferronickel manufacturing process on the extraction of magnesium, iron and silica components. The major chemical composition of the slag sample was as follows : 54.05% SiO_2, 34.33% MgO, 5.51% Fe_2O_3 and the main structure components were forsterite and fayalite of olivine group. The highest extraction of Mg and Fe, correspondingly 81.38% and 80.55%, was provided by leaching the slag particles of 200 mm with 6 M HCl. The main structure of small particles (under 350 mm) was mainly composed of forsterite and the big particles was composed of fayalite, as identified by XRD analysis. As the particle size was decreased from 1,000 mm to 53 mm, the extraction ratio of magnesium was increased from 51.13 to 87.52% and iron was increased from 56.68 to 88.70%. The extraction ratio of magnesium and iron was also increased with increasing HCl concentration.

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