Retrospect and prospect of the technology of phosphatic slag treatment
LIANG Qiang1, ZENG Jia-qing1, QI Yuan-hong2
1. Metallurgical Technology Institute, Central Iron and Steel Research Institute， Beijing 100081， China 2. State Key Laboratory of Advanced Steel Processes and Products, Central Iron and Steel Research Institute， Beijing 100081， China
Abstract：The research status and the characteristics of the technology for phosphatic slag treatment were analyzed. Results show that there were some problems in the recycle technology of phosphatic slag, such as simple low-level utilization, high energy consumption, unsuitability for batch processing or industrial-scale production. Therefore, it is very necessary to improve the recovery efficiency and optimize the utilization of residues, which has been the development trend for resource utilization of the phosphatic slag. On the purpose of recycling phosphorus resource in the phosphatic slag, the technology route that phosphoric acid preparation used rotary hearth furnace by solid-solid gasification dephosphorization through carbon reduction and residues used as the converter auxiliary materials was proposed. Through thermodynamics and dynamics analysis, it shows that the technology route is a new resourceful utilization method of efficiency, low energy consumption and environmental protection, and it has great significance for the promotion of energy conservation and emission reduction as well as sustainable development of iron and steel enterprises.
收稿日期: 2014-04-28
出版日期: 2015-01-12
引用本文:
梁 强， 曾加庆， 齐渊洪. 含磷炉渣处理技术的回顾与展望[J]. 钢铁, 2015, 50(1): 69-75.
LIANG Qiang, ZENG Jia-qing, QI Yuan-hong. Retrospect and prospect of the technology of phosphatic slag treatment. Iron and Steel, 2015, 50(1): 69-75.
Shinya Fukagai, Tasuku Hamano, Fumitaka Tsukihashi. Formation Reaction of Phosphate Compound on Multi Phase Flux at 1573K[J]. ISIJ International, 2007, 47(1): 187-189.
[3]
Shinya Fukagai, Tasuku Hamano, Fumitaka Tsukihashi. Formation Reaction of Phosphate Compound on Multi Phase Flux at 1573K[J]. ISIJ International, 2007, 47(1): 187-189.
[4]
Hideaki Suito, Ryo Inoue. Behavior of Phosphorous Transfer From CaO-FetO-P2O5(-SiO2) Slag to CaO Particles[J]. ISIJ International, 2006, 46(2): 180-187.
[4]
Hideaki Suito, Ryo Inoue. Behavior of Phosphorous Transfer From CaO-FetO-P2O5(-SiO2) Slag to CaO Particles[J]. ISIJ International, 2006, 46(2): 180-187.
[5]
Deo B, Halder J, Snoeijer B，et al. Effect of MgO and Al2O3 Variations in Oxygen Steelmaking (BOF) Slag on Slag Morphology and Phosphorus Distribution[J]. Ironmaking and Steelmaking, 2005, 32(1): 54-60.
[5]
Deo B, Halder J, Snoeijer B，et al. Effect of MgO and Al2O3 Variations in Oxygen Steelmaking (BOF) Slag on Slag Morphology and Phosphorus Distribution[J]. Ironmaking and Steelmaking, 2005, 32(1): 54-60.
Morita K, Guo M, Oka N， et al. Resurrection of iron and phosphorus resource in steelmaking slags[J]. Journal of Material Cycles and Waste Management, 2002，（4）: 93-101.
[10]
Morita K, Guo M, Oka N， et al. Resurrection of iron and phosphorus resource in steelmaking slags[J]. Journal of Material Cycles and Waste Management, 2002，（4）: 93-101.
K. Yokoyama, H. Kubo, K. Mori, et al. Separation and Recovery of Phosphorus from Steelmaking Slags with the Aid of a Strong Magnetic Field [J]. ISIJ International, 2007，47(10):1541-1548.
[15]
K. Yokoyama, H. Kubo, K. Mori, et al. Separation and Recovery of Phosphorus from Steelmaking Slags with the Aid of a Strong Magnetic Field [J]. ISIJ International, 2007，47(10):1541-1548.
[16]
Hironari KUBO，Kazuyo MATSUBAE-YOKOYAMA，Tetsuya NAGASAKA. Magnetic Separation of Phosphorus Enriched Phase from Multiphase Dephosphorization Slag [J]. ISIJ International, 2010，50(1):59-64.
[16]
Hironari KUBO，Kazuyo MATSUBAE-YOKOYAMA，Tetsuya NAGASAKA. Magnetic Separation of Phosphorus Enriched Phase from Multiphase Dephosphorization Slag [J]. ISIJ International, 2010，50(1):59-64.
Fujita T, Iwasaki L. Phosphorus Removal from Steelmaking Slag Slow-Cooled in a Non-Oxidizing Atmosphere by Magnetic Separation/Flotation [J]. Transactions of the ISS, 1989:47-51.
[19]
Fujita T, Iwasaki L. Phosphorus Removal from Steelmaking Slag Slow-Cooled in a Non-Oxidizing Atmosphere by Magnetic Separation/Flotation [J]. Transactions of the ISS, 1989:47-51.
[20]
Y.-S.Jeong, K.matsubae-Yokoyama, T.Nagasaka. Recovery of Mn and P from Steelmaking Slag with Wet Magnetic Seperation[J]. 材料とプロセス, 2009, 22 (2): 993-993.
[20]
Y.-S.Jeong, K.matsubae-Yokoyama, T.Nagasaka. Recovery of Mn and P from Steelmaking Slag with Wet Magnetic Seperation[J]. 材料とプロセス, 2009, 22 (2): 993-993.
[21]
FUKAYA KAZUO, KITANI FUKUICHI, ARAKI SHIGERU. NIPPON KOKAN KK >NKK . METHOD FOR SEPARATING AND RECOVERING DEPHOSPHORIZATION SLAG.申请号:JP600104471, 1986-08-08
[21]
FUKAYA KAZUO, KITANI FUKUICHI, ARAKI SHIGERU. NIPPON KOKAN KK >NKK . METHOD FOR SEPARATING AND RECOVERING DEPHOSPHORIZATION SLAG.申请号:JP600104471, 1986-08-08
[22]
H. Ono, A. Inagaki, T. Masui, et al. Gohda. Removal of Phosphorus from LD Converter Slag by Floating Separation of Dicalcium Silicate during Solidification[J]. Transactions ISIJ, 1981, 21 (2): 135-144.
[22]
H. Ono, A. Inagaki, T. Masui, et al. Gohda. Removal of Phosphorus from LD Converter Slag by Floating Separation of Dicalcium Silicate during Solidification[J]. Transactions ISIJ, 1981, 21 (2): 135-144.
2015, Vol. 50 
