Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Extraction of Mg ion and Fabrication of Mg Compound from Ferro-Nickel Slag

페로니켈 슬래그로부터 Mg 이온의 용출특성과 화합물 제조

  • Chu, Yong-Sik (Green Ceramic Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Lim, Yoo-Ree (Test & Standard Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Park, Hong-Bum (Green Ceramic Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Song, Hun (Green Ceramic Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Lee, Jong-Kyu (Green Ceramic Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Lee, Seung-Ho (Green Ceramic Division, Korea Institute of Ceramic Engineering & Technology)
  • 추용식 (한국세라믹기술원 그린세라믹본부) ;
  • 임유리 (한국세라믹기술원 시험표준센터) ;
  • 박홍범 (한국세라믹기술원 그린세라믹본부) ;
  • 송훈 (한국세라믹기술원 그린세라믹본부) ;
  • 이종규 (한국세라믹기술원 그린세라믹본부) ;
  • 이승호 (한국세라믹기술원 그린세라믹본부)
  • Received : 2010.10.22
  • Accepted : 2010.11.17
  • Published : 2010.11.30
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Abstract

Ferro-Nickel slag is one of the by-products in Ferro-Nickel manufacturing process. The slag is composed of $SiO_2$, MgO, $Fe_2O_3$ and others. But the slag has been buried at landfill despite having valuable elements. This study tried to extract Mg ion and fabricate Mg compound from ferro-nickel slag using hydrochloric acid solution. Mg ion was extracted with Si, Fe and other ions in HCl solution. So reprocess was needed for gaining high purity Mg ion. It was thought that Si ion or $SiO_2$ precipitated in HCl solution and removed from solution in filtering process. Fe ion converted into $Fe(OH)_3$ after reacted with $NH_4OH$ and precipitated in HCl solution. After these process, the filtrate was composed of high purity Mg ion. $MgCl_2{\cdot}NH_4Cl{\cdot}6H_2O$ was obtained through drying of filtrate and this product was changed into MgO by burning process ($600^{\circ}C$-30 min). That is, 1st material or solution for manufacturing 2nd product was fabricated using acid dissolution method and other treatments.

Keywords

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Cited by

  1. Fixation by Magnesium Hydroxide from Ferro-Nickel Slag vol.20, pp.1, 2014, https://doi.org/10.7464/ksct.2014.20.1.042
  2. Potential Soil Contamination in Areas Where Ferronickel Slag Is Used for Reclamation Work vol.7, pp.10, 2014, https://doi.org/10.3390/ma7107157