Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Electrodeposition of Manganese from Ferromanganese Slag with Ammonium Sulfate

황산암모늄에 의한 훼로망간 슬랙으로부터 망간의 전착

  • Duk Mook Kim (Department of Chemistry, Dan Kook University)
  • 김덕묵 (단국대학교 문리과대학 화학과)
  • Published : 1985.08.20
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Abstract

The manganese was extracted from ferromanganese slag with 6N ammonium sulfate and purified with ammonium sulfide. The current efficiencies were substantially increased when small amounts of selenious acid is used as an additive. Stainless steel was used as cathodic electrode and lead (+1% Ag) as anodic electrode. The effects of several variables were investigated, and the optimum conditions were found to be; 40g/l Mn in electrolyte at pH 7.0 with 1$20g/l (NH_4)_2SO_4$, Cathode current density 60mA/cm$^2$, Current efficiency 90% and up at the temperature about $25^{\circ}C.$ The metal produced has been consistantly of high quality.

황산암모늄을 이용하여 훼로망간슬랙중에 망간만을 분리, 추출하고 황화암모늄으로 정제한 후 소량의 $H_2SeO_3$를 첨가제로 가하여 환원전극으로는 Stainless steel판을, 산화전극으로는 납(Pb + 1% Ag)전극을 이용하여 60mA/cm$^2$정도의 전류밀도에서 90%이상의 전류효율로 순수한 망간금속을 얻었다.

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