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Separation and Recovery of Phosphorus from P-bear-ing Steelmaking Slag
引用本文:Lu LIN,Yan-ping BAO,Min WANG,Wei JIANG,Han-mei ZHOU.Separation and Recovery of Phosphorus from P-bear-ing Steelmaking Slag[J].钢铁研究学报(英文版),2014,21(5):496-502.
作者姓名:Lu LIN  Yan-ping BAO  Min WANG  Wei JIANG  Han-mei ZHOU
摘    要:In order to recycle the phosphorus from P-bearing steelmaking slag, the influences of magnetic field inten- sities, slag particle sizes and slag compositions were investigated by magnetic separation experiments. SiO2, A1203 and TiO2 melting modification of converter slag was made respectively and phosphorus-rich phase was extracted by magnetic separation. The results show that MgO, MnO, Na2 0 and CaF2 have little effect on the phosphorus recovery, whereas the addition of SiO2, Al2 03, and TiO2 has great effect on phosphorus enrichment in slag and magnetic separation. With adding the reagent of SiO2 Al2 03 and TiO2, recycled non-magnetic substances are increased obviously and P2 05 content in nowmagnetic substances and phosphorus recovery rate are also increased. The phosphorus recovery rates of modified slag No. 8 (SiO2 modification), slag No. 10 (AI2 03 modification) and slag No. 11 (TiO2 modification) are 84.75 %, 82.16 % and 74.46 %, respectively. Then, most of phosphorus was recycled.

关 键 词:磷回收率  分离实验  轴承  炼钢渣  炼钢炉渣  SiO2  二氧化锰  磁性物质
收稿时间:14 November 2012

Separation and Recovery of Phosphorus from P-bearing Steelmaking Slag
Lu LIN,Yan-ping BAO,Min WANG,Wei JIANG,Han-mei ZHOU.Separation and Recovery of Phosphorus from P-bearing Steelmaking Slag[J].Journal of Iron and Steel Research,2014,21(5):496-502.
Authors:Lu LIN  Yan-ping BAO  Min WANG  Wei JIANG  Han-mei ZHOU
Affiliation:1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China 2. National Engineering Research Center of Flat Rolling Equipment, University of Science and Technology Beijing, Beijing 100083, China 3. Journals Publishing Center, University of Science and Technology Beijing, Beijing 100083, China
Abstract: In order to recycle the phosphorus from P-bearing steelmaking slag, the influences of magnetic field intensities, slag particle sizes and slag compositions were investigated by magnetic separation experiments. SiO2, Al2O3 and TiO2 melting modification of converter slag was made respectively and phosphorus-rich phase was extracted by magnetic separation. The results show that MgO, MnO, Na2O and CaF2 have little effect on the phosphorus recovery, whereas the addition of SiO2, Al2O3, and TiO2 has great effect on phosphorus enrichment in slag and magnetic separation. With adding the reagent of SiO2, Al2O3 and TiO2, recycled non-magnetic substances are increased obviously and P2O5 content in non-magnetic substances and phosphorus recovery rate are also increased. The phosphorus recovery rates of modified slag No. 8 (SiO2 modification), slag No. 10 (Al2O3 modification) and slag No. 11 (TiO2 modification) are 84. 75%, 82. 16% and 74. 46%, respectively. Then, most of phosphorus was recycled.
Keywords:phosphorus  magnetic separation  melting modification  phosphorus recovery rate  P-bearing steelmaking slag    
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