CaO－BaO－CaF_2－CaCl_2渣对铬铁系合金的氧化脱磷  

OXIDIZING DEPHOSPHORIZATION FOR Fe-Cr ALLOYS WIYH CaO-BaO-CaF_2-CaCl_2 SLAGS

作　　者：董元篪[1] 陈友根[1] 刘世洲[1] 

机构地区：[1]华东冶金学院,东北大学

出　　处：《钢铁研究学报》1994年第1期15-21,共7页Journal of Iron and Steel Research

摘　　要：通过ＣａＯ－Ｂａｏ－ＣａＦ＿２－ＣａＣｌ＿２渣和Ｆｅ－Ｃｒ－Ｃ－Ｐ熔体间的分配平衡实验，研究磷、铬在该渣中的行为。结果表明，在一定范围内，增加渣中的ＢａＯ和ＣａＣｌ＿２含量，磷酸盐容量增加，铬酸盐容量的变化则较小。根据实验结果的综合分析说明，该渣对ｆＥ－Ｃｒ熔体具有较理想的脱磷保铬能力。在此基础上，在实验室内用该渣对含铬３０％的Ｆｅ－Ｃｒ合金进行了氧化脱磷的应用性试验，试验结果表明，适当的低温和ＢａＯ和Ｆｅ＿２Ｏ＿３添加量可获得大于５０％的脱磷率，铬几乎无烧损。Experiments on Cr,P distribution between CaO-BaO-CaF_2-CaCl_2 slagsand Fe-Cr-C-P melts are carriedout.The obtained results show that phosphate ca-pacity increases with CaCl_2 and BaO content in slag and chromite capacity has no ap-parent variation,and that this slag has stronger ability to dephosphorize without re-markable Cr losses,Based on the above work,the applied experiments of dephospho-rization for Fe-Cr melts containing 30%Cr with these slags are performed in thelaboratory scale. More than 50%dephosphorization efficiency and almost no Cr lossare achieved at the lower temperature,proper Fe_2O_3 amount and higher BaO contentin slag.

关 键 词：氧化脱磷 铝铁合金 含钡渣系 

分 类 号：TF641[冶金工程—钢铁冶金]