廢알칼리망간電池로부터 機能性 複合素材 製造
Synthesis of Functional Complex Material from Spent Alkaline Manganese Battery
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초록
폐알칼리망간전지로부터 침출과 공침반응을 이용하여 Mn-Zn ferrite 분말을 제조하기 위한 기초실험을 수행하였다. 100g/L 광액농도 3.0M H₂SO₄, 60˚C 및 교반속도 200 rpm의 조건에서 과산화수소 30ml를 첨가하여 얻어진 아연과 망간의 침출율은 각각 97.9%, 93.9% 이상이었으며, 침출용액을 가지고 반응시간, 반응온도, O₂ 가스량을 조절하며 공침반응을 진행하였다. 공침반응 결과 pH 12, 80˚C, O₂ 1.3L/min., 교반속도 400 rpm의 조건에서 Mn-Zn ferrite를 저온 합성할 수 있었다. 합성된 Mn-Zn ferrite 분말은 0.143m의 구형 ferrite로서 80emu/g의 포화자화값을 가지고 있었다.
Abstract
Fundamental studies for the synthesis of Mn-Zn ferrite powder were investigated using a series of leaching and coprecipitation processes from spent alkaline manganese batteries. Zinc and Manganese dissolution rates obtained at the reaction conditions of 100g/L pulp density, 3.0M H₂SO₄, 60˚C and 200 rpm with 30ml H₂O₂ as a reducing agent were more than 97.9% and 93.9% and coprecipitation of Mn-Zn ferrite powder was performed according to various reaction conditions such as temperature, time and amount of O₂ gas injection using the leaching solution. As a result of coprecipitation, Mn-Zn ferrite could be synthesized directly at low temperature in the reaction condition pH 12, 80˚C, O₂ 1.3L/min. and 400 rpm. The synthesized Mn-Zn ferrite powder was spherical powder of 0.143m particle size and had a saturation magnetization about 80 emu/g.
참고문헌 (10)
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