炼钢用脱磷剂的开发及应用

Heavy Castings and Forgings(2009)

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Abstract
以CaO-A12O3系预熔渣和铁矿粉为主要原料,开发了炼钢用脱磷剂。测定了脱磷剂的熔点,利用坩埚法测定了脱磷剂的脱磷能力,确定了综合性能指标较好的脱磷剂的组分,考察了利用该脱磷剂进行现场试验时的脱磷效果。研究结果表明,在预熔渣(CaO65%、Al2O334%)和铁矿粉为1∶1时,可以获得熔点以及脱磷能力良好的脱磷剂;在电炉上应用,当其加入量达到20 kg/t时,脱磷率达82%以上,氧化期缩短25%。
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Key words
steelmaking,refining slag,dephosphorization,dephosphorization flux
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