Effect of different reductants on the dissolution of manganese from manganiferous iron ore Manganli demir cevherinden manganin cozundurulmesinde farkli indirgeyicilerin etkisi


TOP S., ALTINER M., Kursunoglu S.

Scientific Mining Journal, cilt.61, sa.2, ss.83-92, 2022 (Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 61 Sayı: 2
  • Basım Tarihi: 2022
  • Doi Numarası: 10.30797/madencilik.989453
  • Dergi Adı: Scientific Mining Journal
  • Derginin Tarandığı İndeksler: Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.83-92
  • Anahtar Kelimeler: Dissolution, Iron, Manganese, Manganiferous iron ores, Reductant
  • Kayseri Üniversitesi Adresli: Hayır

Özet

© 2022 Union of Chambers of Engineers and Architects of Turkey. All rights reserved.IIn this paper, the manganese extraction from a manganiferous iron ore was investigated using reductive leaching. Various chemicals were used as a reducing agent to leach manganese selectively from the ore in the presence of sulfuric acid (H2SO4) solution. Firstly, optimum dissolution values were determined for selective manganese dissolution without using a reducing agent. As it was aimed at the selective extraction of manganese from the ore, the reductive leaching tests were conducted by adding the reducing agents under the following optimal parameters: a leaching time of 1 h, a stirring speed of 300 rpm, a temperature of 70°C, a sulfuric acid concentration of 1 M where the ore was leached with an extraction ratio of 11.54% Mn and 2.16% Fe. Manganese was dissolved with high efficiencies (up to 97.46%) from the ore by using different organic compounds (tartaric acid (C4H6O6), oxalic acid (C2H2O4), citric acid (C6H8O7), glucose (C6H12O6), sucrose (C12H22O11), and maleic acid (C4H4O4)) as the reducing agents.