高炉炼铁法和熔融还原法属于高温冶金流程,其缺点是能耗高、污染严重.气基直接还原法受我国天然气资源的限制,很难得到发展.煤基直接还原法由于生产力低、能耗过高,发展缓慢.煤基低温快速还原炼铁新工艺,能够在600 ℃左右实现煤粉快速还原铁矿粉,具有还原温度低、效率高、能耗低、污染小等特点,有望成为一种有前途的炼铁工艺.新工艺不仅能处理铁矿粉,还能处理钒钛磁铁矿和钛铁矿等矿种.在实验的基础上,提出了煤基低温冶金学.
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