Manganese - WikipediaManganese is a chemical element with symbol Mn and atomic number 25. It is not found as a ... For the production of ferromanganese, the manganese ore is mixed with iron ore and carbon, and then reduced either in a blast . A more progressive extraction process involves directly reducing manganese ore in a heap leach.extraction manganese ore,Patent US2176774 - Process of extracting manganese from ore .Oct. 17, 1939. A T, WEET ET AL 2,176,774. PROCESS OF EXTRACTING MANGANESE FROM ORE Original Filed April 29, 1929 OAElS/IALE MINKD.
extraction manganese ore