中碳、低碳锰铁是炼钢的重要材料。国内外生产这些合金所用的传统方法,是用电炉先炼出硅锰合金,然后以它为还原剂,在另一电炉内与富锰矿和富锰渣一起,炼出锰铁。这样的工艺比较复杂,电耗大,成本较高。我国铁合金工业经过试验,已成功地以普通碳素铬铁为原料,用氧气转炉脱碳,生产中碳和低碳铬铁。关于这个工艺的热力学基础见。勇于革新的铁合金工作者提出以类似的方法,从碳素锰铁生产中碳、低 Medium carbon, low carbon ferromanganese is an important material for steelmaking. The traditional method used to produce these alloys at home and abroad is to first refine the Si-Mn alloy with an electric furnace and then use it as a reductant to refine the ferromanganese together with the Mn-rich ore and the Mn-rich slag in another electric furnace. This process is more complicated, power consumption, higher cost. China’s ferroalloy industry has been tested and has succeeded in using ordinary carbon ferrochrome as raw material, oxygen converter decarbonization, the production of carbon and low-carbon ferrochrome. See the thermodynamic foundation of this process. Innovative ferroalloy workers are presented in a similar way, from carbon ferromanganese production carbon, low