| 학회 |
한국화학공학회 |
| 학술대회 |
2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 |
13권 2호, p.2271 |
| 발표분야 |
재료 |
| 제목 |
Formation of ferrous acetate from magnetite ore via iron hydroxide precipitate |
| 초록 |
Iron oxide separated from the magnetite ore by using appropriate sieves and magnetic separation was dissolved in hydrochloric acid and oxalic acid, respectively, and then hydrogen peroxide added in order to reduce ferric ion in magnetite solution. Iron hydroxide precipitate from hydrochloric acid/oxalic acid solution was obtained at pH 3.5-4 and then ferrous acetate precipitate was obtained by reaction of iron hydroxide precipitate in the mixture of aqueous acetic acid solution and acetic anhydride at 90℃. The bonding mode of the acetate group to ferrous acetate was confirmed to be bidentate by FT-IR analysis. The XPS analysis demonstrate that a multiplicity of Fe2+ and/or Fe3+, chemical state and binding energies are present in ferrous acetate samples. XRD and SEM analyses revealed that ferrous acetate precipitate is amorphous or low crystalline state. |
| 저자 |
오한상1, 서용재2, 장희동3, 구기갑3
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| 소속 |
1서강대, 2바이오융합기술 협동과정, 3한국지질자원(연) |
| 키워드 |
ferrous acetate; iron hydroxide
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