페로니켈 슬래그를 利用한 水酸化마그네슘 製造方法
Fabrication of Mg(OH)2 from Ferro-Nickel Slag
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초록
페로니켈 슬래그는 페로니켈 제조 공정의 부산물이다. 페로니켈 슬래그가 마그네슘 산화물 및 규소 산화물 등 유용 성분을 갖는데도 불구하고 대부분이 폐기되거나 골재로 사용된다. 이 연구는 H2SO4 용액을 사용하여 Mg 이온을 추출하고, NaOH 용액을 사용하여 불순물 제거 및 고순도의 Mg(OH)2를 얻으려고 하였다. H2SO4 용액에 의해 Mg 이온은 Fe 이온 및 기타 페로니켈 슬래그구성 성분과 함께 추출되었다. 불순물을 제거하고 고순도의 Mg(OH)2를 얻기 위해서는 침출액의 pH 조절이 중요하다. 불순물은 가수분해에 의한 수산화물 침전으로 제거하였다. 이 과정 후, 여과액에 NaOH를 첨가하여 고순도의 Mg(OH)2을 얻었다.
Abstract
Ferro-Nickel slag is a byproduct of Ferro-Nickel manufacturing process. Ferro-Nickel slag mostly discarded or used as aggregates despite having useful ingredients such as magnesium oxide and silicon oxide. This study tried to extract process for Mg ion using H2SO4 solution. And remove impurities and get high purity Mg(OH)2 using NaOH. Mg ion was extracted with the Fe ion and other Ferro-Nickel slag composition by H2SO4 solution. It is important to control the pH because remove impurities and obtain high-purity Mg(OH)2. The impurities were removed by precipitation of the hydroxides. After this process, we added NaOH and high-purity Mg(OH)2 was obtained.
참고문헌 (12)
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