REDUCTIVE ROASTING OF IRON-RICH MANGANESE OXIDE ORE WITH ELEMENTAL SULFUR FOR SELECTIVE MANGANESE EXTRACTION. J Min & Metal B Metallurgy [Internet]. 2017 Jan. 30 [cited 2026 Jun. 11];53(2):115-22. Available from: https://test.aseestant.ceon.rs/index.php/jmm/article/view/10343