| 高磷铁水脱磷渣枸溶性 |
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| 引用本文： | 王永红,谢兵,刁江,李晓军,张杰新. 高磷铁水脱磷渣枸溶性[J]. 北京科技大学学报, 2011, 33(3): 323-327 |
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| 作者姓名： | 王永红 谢兵 刁江 李晓军 张杰新 |
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| 作者单位： | 重庆大学材料科学与工程学院重庆市冶金工程重点实验室;重庆钢铁股份有限公司炼钢厂; |
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| 基金项目： | 重庆市科技攻关重点资助项目(No.CSTC,2008AB4018) |
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| 摘 要： | 参照实际转炉脱磷炉渣,配制了不同F、P2O5、FeO和MgO含量及碱度的渣样,用化学分析方法测试了不同组分对渣中磷的枸溶率的影响规律.结果表明:当脱磷渣中含有F时,P主要与F形成氟磷灰石,使得磷的枸溶率随渣中F含量的升高而急剧降低,当不含氟时枸溶率可达92.5%,当氟质量分数达到0.5%时枸溶率已降低到50%以下;随碱度增加,由于渣中Ca2+含量增加,破坏了硅氧网络结构,使得枸溶率有所上升;渣中MgO含量升高,由于Mg2+在熔融冷却过程中会抑制β--Ca3(PO4)2晶体的析出,而β--Ca3(PO4)2中磷不易为质量分数为2%的柠檬酸液溶出,而使枸溶率有所升高;随渣中P2O5含量升高,由于P5+与O2-形成络离子,P5+位于O2-密集形成的间隙中,不易溶出,使得枸溶率有所下降;渣中FeOn升高,枸溶率随之降低.
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| 关 键 词： | 渣 脱磷 磷肥 柠檬酸 溶解性 组分 |
Solubility in citric acid of dephosphorization slags from high phosphorus hot metal refining |
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| WANG Yong-hong,XIE Bing,DIAO Jiang,LI Xiao-jun,ZHANG Jie-xing. Solubility in citric acid of dephosphorization slags from high phosphorus hot metal refining[J]. Journal of University of Science and Technology Beijing, 2011, 33(3): 323-327 |
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| Authors: | WANG Yong-hong XIE Bing DIAO Jiang LI Xiao-jun ZHANG Jie-xing |
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| Affiliation: | WANG Yong-hong1),XIE Bing1),DIAO Jiang1),LI Xiao-jun1),ZHANG Jie-xing2)1) Chongqing Key Laboratory of Metallurgy,College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China2) Steelmaking Plant of Chongqing Iron & Steel Co.Ltd.,Chongqing 400084,China |
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| Abstract: | Consulting a practical dephosphorization slag in the converter,samples with different levels of F,P2O5,FeO,MgO and basicity were prepared in laboratory,and the effect of composition on their solubility in citric acid was analyzed by chemical analysis methods.The results show that when the slag contains fluorine,P and F mainly form fluorapatite,and the solubility in citric acid of the slag sharply decreases when the fluorine content increases in the slag.If there is no any fluorine in the slag,the solubility... |
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| Keywords: | slags dephosphorization phosphate fertilizers citric acid solubility composition |
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