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Volume 7 Issue 3
Jun.  2016
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LIU Yang, SHU Qifeng. Effect of MgO and MnO on phase of CaO-SiO2-Fe2O3-P2O5 slag system[J]. Nonferrous Metals Science and Engineering, 2016, 7(3): 29-34. DOI: 10.13264/j.cnki.ysjskx.2016.03.006
Citation: LIU Yang, SHU Qifeng. Effect of MgO and MnO on phase of CaO-SiO2-Fe2O3-P2O5 slag system[J]. Nonferrous Metals Science and Engineering, 2016, 7(3): 29-34. DOI: 10.13264/j.cnki.ysjskx.2016.03.006
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Effect of MgO and MnO on phase of CaO-SiO2-Fe2O3-P2O5 slag system

  • School of metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

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  • Received Date: November 12, 2015
  • Published Date: June 29, 2016
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    • Abstract
  • The phosphorus in P-bearing converter slag is mainly existed in the form of n2CaO·SiO2-3CaO·P2O5 (for short nC2S-C3P) solid solution in the P-rich phase. For a better understanding of the phase in the CaO-SiO2-Fe2O3-P2O5 slag system, and an effective enrichment of the phosphorus in converter slag, the effect of MgO and MnO on the P2O5 content in the P-rich phase and effect on crystallization phase were studied by performing thermodynamic analysis. The results show that the content of P2O5 in the P-rich phase increases by adding of MgO and MnO to the CaO-SiO2-Fe2O3-P2O5 slag system. However, the increasing of MgO and MnO has no effect on the P2O5 content. With the addition of MgO and MnO, the iron rich phase is observed in an increasing tendency, which shows that it is favorable to the magnetic separation of P-bearing slag.
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    • References (18)
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