| 페로니켈 슬래그로부터 Mg 이온의 용출특성과 화합물 제조 |
| 추용식, 임유리1, 박홍범, 송훈, 이종규, 이승호 |
한국세라믹기술원 그린세라믹본부
1한국세라믹기술원 시험표준센터 |
| Extraction of Mg ion and Fabrication of Mg Compound from Ferro-Nickel Slag |
| Yong-Sik Chu, Yoo-Ree Lim1, Hong-Bum Park, Hun Song, Jong-Kyu Lee, Seung-Ho Lee |
Green Ceramic Division, Korea Institute of Ceramic Engineering & Technology
1Test & Standard Center, Korea Institute of Ceramic Engineering & Technology |
|
|
|
|
|
| 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. |
| Key words:
Ferro-nickel slag, HCl solution, Mg ion, Mg compound, Filtering process |
|
|
|
PDF Links
Full text via DOI
Download Citation 
