炼钢含铁尘泥再生利用的分析研究  

Analysis and Research on Recycling of Iron-containing Steelmaking Dust and Mud

作　　者：田守信[1] 

机构地区：[1]宝钢研究院环境与资源研究所,上海201900

出　　处：《宝钢技术》2008年第3期21-24,共4页Baosteel Technology

摘　　要：通过理论分析证明,炼钢尘泥是非常有价值的宝贵资源,可以通过氧化还原反应,把炼钢尘泥里的Fe2O3和FeO还原成固相金属铁而成为炼钢原料,把Na2O、K2O、ZnO和PbO还原成相应的Na、K、Zn和Pb等金属气体而逸出尘泥,经过冷凝可以回收相应的金属和相应的氧化物,这些都是很有价值的原材料。除去炼钢尘泥中的氧化铁和碱金属氧化物以及贵重金属氧化物后,剩下的是热力学稳定的高碱度的CaO-MgO-AlO-SiO系统,这是一种具有良好脱硫作用的钢水洁净剂和水泥原料。The theoretical analysis proved that steelmaking dust and mud is a valuable resource. Fe2O3 and FeO in the dust and mud can be reduced to metal iron, which is a kind of steelmaking raw material through redox reaction. Na2 O, K2O,ZnO and PbO can be reduced into corresponding metal gases of Na, K, Zn and Pb and take off from the dust and mud. The corresponding metals and their oxides can be retrieved by oxidation and condensation. They are all valuable raw materials. After basic metal oxides and precious metal oxides are taken off and iron oxides are reduced, the residuals are stable high basic CaO-MgO-Al2O3-SiO2 thermodynamically, which is a kind of agent to purify molten steel and a cement raw material.

关 键 词：炼钢尘泥 再生利用 氧化还原 

分 类 号：X757[环境科学与工程—环境工程]