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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-d3f97c60-828b-4fc2-8720-cc0adb964b47

Czasopismo

Archives of Metallurgy and Materials

Tytuł artykułu

Enrichment, Separation, and Recovery of Phosphorus from Dephosphorization Slag

Autorzy Yan-Ling, Z.  Ming, G.  Feng-Shan, L.  Kan, Y. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
Abstrakty
EN A better understanding of phosphorus distribution in slag is necessary to develop an effective way to treat dephosphorization slag formed during steelmaking. Here, previous studies on the enrichment, separation, and recovery of phosphorus from dephosphorization slag are reviewed, along with their influencing factors. The results suggest that a proper heat treatment can promote the selective enrichment and growth of P-rich phases. Further, adding P2O5and FetO facilitates phosphorus enrichment. Also, Ca3(PO4)2is precipitated from slag containing 18 wt% P2O5. MnO and MgO in the slag barely affect the phosphorus recovery. In contrast, the addition of Al2O3and TiO2significantly affects phosphorus enrichment and magnetic separation. A phosphorus recovery rate of more than 70% is achieved with the addition of 10 wt% Al2O3or 10 wt% TiO2. New phases (Na2Ca4(PO4)2SiO4, Na3PO4, and Ca5(PO4)3F) tend to be formed on the addition of Na2O and CaF2, which promote phosphorus enrichment. However, the addition of Na2O and CaF2results in the incomplete separation of phosphorus and iron, as CaF2and Na2O improve slag metallization and the magnetism of iron-rich phases.
Słowa kluczowe
EN phosphorus enrichment   selective enrichment and growth   P-rich phase   magnetic separation  
Wydawca Polish Academy of Sciences, Committee of Metallurgy, Institute of Metallurgy and Materials Science
Czasopismo Archives of Metallurgy and Materials
Rocznik 2018
Tom Vol. 63, iss. 4
Strony 1769--1783
Opis fizyczny Bibliogr. 63 poz., fot., rys., wzory
Twórcy
autor Yan-Ling, Z.
  • University of Science and Technology Beijing, State Key Laboratory of Advanced Metallurgy Beijing 100083, China
autor Ming, G.
  • University of Science and Technology Beijing, State Key Laboratory of Advanced Metallurgy Beijing 100083, China, gaoming0309@163.com
autor Feng-Shan, L.
  • University of Science and Technology Beijing, State Key Laboratory of Advanced Metallurgy Beijing 100083, China
autor Kan, Y.
  • University of Science and Technology Beijing, State Key Laboratory of Advanced Metallurgy Beijing 100083, China
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Uwagi
EN The authors would like to thank the National Natural Science Foundation of China (No. 51474021) for financial support.
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-d3f97c60-828b-4fc2-8720-cc0adb964b47
Identyfikatory
DOI 10.24425/amm.2018.125104