基于含碳球团珠铁工艺的硼铁精矿综合利用研究

来源 :第五届宝钢学术年会 | 被引量 : 0次 | 上传用户:kyzy0082
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资源是人类社会发展的基石,开发复合铁矿资源冶炼技术对于提高我国铁矿石自给率、保证钢铁工业的健康发展具有重要意义.基于硼铁矿资源综合利用的现状和转底炉珠铁工艺的基本特点,提出了含碳球团还原熔分综合利用硼铁精矿的新工艺.在实验室条件下,以硼铁精矿和无烟煤为原料,进行了还原熔分和熔分产物基本特性的探索性研究,发现:wc/wo=1.2,焙烧温度为1400℃,焙烧时间为15 min时,渣铁分离彻底,得到含硼元素0.065%的纯净珠铁和B2O3品位为20.01%的富硼渣,珠铁中铁的收得率在96.5%以上,富硼渣中硼的收得率在95.7%以上,活性达86.46%左右.珠铁和富硼渣可以作为钢铁和硼化工的优质原料,该工艺具有原料要求低、工艺流程短、硼收得率高、耐材侵蚀小等优点,对我国低品位硼铁矿资源的综合利用具有一定的指导意义。
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