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Production of High-purity Magnetite Nanoparticles from a Low-grade Iron Ore via Solvent Extraction
| Content Provider | Semantic Scholar |
|---|---|
| Author | Suh, Yong Jae Kil, Dae Sup Jang, Hee Dong Cho, Kuk Young |
| Copyright Year | 2015 |
| Abstract | We produced magnetite nanoparticles (MNPs) and a Mg-rich solution as a nano-adsorbent and a coagulant for water treatment, respectively, using a low-grade iron ore. The ore was leached with aqueous hydrochloric acid and its impurities were removed by solvent extraction of the leachate using tri-n-butyl phosphate as an extractant. The content of Si and Mg, which inhibit the formation of MNPs, was reduced from 10.3 wt% and 15.5 wt% to 28.1 mg/L and < 1.4 mg/L, respectively. Consequently, the Fe content increased from 68.6 wt% to 99.8 wt%. The high-purity Fe 3+ solution recovered was used to prepare 5-15-nm MNPs by coprecipitation. The wastewater produced contained a large amount of Mg 2+ and can be used to precipitate struvite in sewage treatment. This process helps reduce the cost of both sewage and iron-ore- wastewater treatments, as well as in the economic production of the nano-adsorbent. |
| Starting Page | 39 |
| Ending Page | 45 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.9713/kcer.2015.53.1.39 |
| Volume Number | 53 |
| Alternate Webpage(s) | http://ocean.kisti.re.kr/downfile/volume/kiche/HHGHHL/2015/v53n1/HHGHHL_2015_v53n1_39.pdf |
| Alternate Webpage(s) | https://www.cheric.org/PDF/HHKH/HK53/HK53-1-0039.pdf |
| Alternate Webpage(s) | https://doi.org/10.9713/kcer.2015.53.1.39 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
