LF精炼渣物化特性及综合利用
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摘要
LF炉精炼法目前是中国常用的精炼法,比较常见的种类有CaO-CaF_2、CaO-A1_2O_3、CaO-Al_2O_3-CaF_2和CaO-Al_2O_3-SiO_2为基的精炼渣系。不同精炼渣样品成分和物相差别较大,在利用时应根据这种差异探寻不同的利用途径。该文综述了精炼渣的理化特性,在此基础上,分析了精炼渣资源化利用途径。了解精炼渣的理化特性及综合利用能力,不仅消除环保上的隐患,还能创造出新的经济价值,实现精炼渣回收利用及综合治理的目的。
LF refining method is now commonly used in China, the more common species are CaO-CaF_2, CaO-Al_2 O_3,CaO-Al_2 O_3-CaF_2 and CaO-Al_2 O_3-SiO_2 based refining slag. The difference between components and substances of different refining slag samples is quite different. Different ways of utilization should be explored according to this difference. The chemical composition, mineral phase composition and microstructure of refining slag are reviewed. On these bases, the ways of utilization of refining slag as resource are analyzed. Understanding the physicochemical properties and comprehensive utilization of refining slag can not only eliminate the hidden dangers in environmental protection, but also create new economic value, and realize the purpose of recycling and comprehensive treatment of refining slag.
LF refining method is now commonly used in China, the more common species are CaO-CaF_2, CaO-Al_2 O_3,CaO-Al_2 O_3-CaF_2 and CaO-Al_2 O_3-SiO_2 based refining slag. The difference between components and substances of different refining slag samples is quite different. Different ways of utilization should be explored according to this difference. The chemical composition, mineral phase composition and microstructure of refining slag are reviewed. On these bases, the ways of utilization of refining slag as resource are analyzed. Understanding the physicochemical properties and comprehensive utilization of refining slag can not only eliminate the hidden dangers in environmental protection, but also create new economic value, and realize the purpose of recycling and comprehensive treatment of refining slag.
引文
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[3]Manso J M,Losa?M,ez,et al.Ladle furnace slag in construction[J].Journal of Materials in Civil Engineering,2005,17(17):513-518.
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[9]Popescu L G,Zaman F,Volceanov E,et al.A new approach for recovery procedure of the unconventional material-IFslag-for acid soil amendments[J].Romanian Journal of Materials,2016,46(1):115-120.
[10]Bouabidi Z B,El-Naas M H,Dan C,et al.Steel-making dust as a potential adsorbent for the removal of lead(Ⅱ)from an aqueous solution[J].Chemical Engineering Journal,2018,334.
[11]温良英,陈登福,白晨光,等.钢包炉(LF)预熔精炼渣的研究[J].特殊钢,2003,24(2):13-15.Wen Liangying,Chen Dengfu,Bai Chenguang,et al.Study on pre-melting refining slag of ladle furnace(LF)[J].Special Steel,2003,24(2):13-15.
[12]黄毅,徐国平,程慧高,等.典型钢渣的化学成分、显微形貌及物相分析[J].硅酸盐通报,2014,33(8):1902-1907.Huang Yi,Xu Guoping,Chen Huigao,et al.Chemical composition,micromorphology and phase analysis of typical steel slag[J].Silicate Bulletin,2014,33(8):1902-1907.
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[15]任雪,李辽沙.LF炉精炼渣资源化特性[J].安徽工业大学学报:自科版,2009,26(4):338-340.Ren Xue,Li Liaosha.Recycling characteristics of LF furnace refining slag[J].Journal of Anhui University of Technology:Natural-Science Edition,2009,26(4):338-340.
[16]吴启帆,包燕平,林路,等.LF精炼渣的物相及其冷却过程研究[J].炼钢,2014,30(6):50-53.Wu Qifan,Bao Yanping,Lin Lu,et al.Study on phase and cooling process of LF refining slag[J].Steel Making,2014,30(6):50-53.
[17]李辽沙,任雪,吴六顺,等.LF精炼渣制备超细硅酸铝:酸浸提铝过程研究[C].//2008国际粉体技术与应用论坛暨全国粉体产品与设备应用技术交流大会,2008.Li Liaosha,Ren Xue,Wu Liushun,et al.Preparation of Ultrafine Aluminum Silicate by LF Refining Slag-Study on the Process of Aluminum Extraction by Acid Leaching[C].//2008 International Powder Technology and Application Forum and National Powder Products and Equipment Application Technology Exchange Conference,2008.
[18]周云,栾晓彦,董元篪,等.高铝LF精炼废渣提取氧化铝的实验研究[J].矿产综合利用,2008(2):38-41.Zhou Yun,Luan Xiaoyan,Dong Yuanchi,et al.Experimental study on extraction of alumina from high aluminum LFrefining waste[J].Comprehensive Utilization of Minerals,2008(2):38-41.
[19]赵和明,谢兵.LF炉精炼渣冶金性能的研究现状[J].钢铁钒钛,2002,23(4):53-58.Zhao Heming,Xie Bing.Research status of metallurgical properties of LF furnace refining slag[J].Steel Vanadium and Titanium,2002,23(4):53-58.
[20]何环宇,倪红卫,曾静.LF炉精炼废渣渣相组成及形成机理研究[J].武汉科技大学学报:自然科学版,2008,31(5):515-518.He Huanyu,Ni Hongwei,Zeng Jing.Study on phase composition and formation mechanism of LF furnace refining waste slag[J].Journal of Wuhan University of Science and Technology:Natural Science Edition,2008,31(5):515-518.
[21]黄康乐,孙洪波,窦为学,等.LF炉热态钢渣的循环利用技术[J].河北冶金,2012(5):64-65.Huang Kangle,Sun Hongbo,Dou Weixue,et al.Recycling technology of hot steel slag in LF furnace[J].Hebei metallurgy,2012(5):64-65.
[22]邓浩华.LF炉高碱度精炼渣脱硫效果及发泡性的研究[D].包头:内蒙古科技大学,2014.Deng Haohua.Study on Desulfurization Effect and Foaming Property of LF Furnace High Alkalinity Refining Slag[D].Baotong:Inner Mongolia University of Science and Technology,2014.
[23]武伟娟.钢渣-水泥复合胶凝材料水化过程及性能研究[D].北京:北京化工大学,2016.Wu Weijuan.Study on Hydration Process and Properties of Steel Slag-cement Composite Cementitious Materials[D].Beijing:Beijing University of Chemical Technology,2016.
[24]汪姣.钢包内衬粘渣的机理及化渣剂的研究[D].武汉:武汉科技大学,2007.Wang Jiao.Study on the Mechanism of Slag Sticking in Ladle and Research on Slag Agent[D].Wuhan:Wuhan University of Science and Technology,2007.
[25]郭之号.添加剂对无氟或低氟助熔剂熔点及粘度影响的研究[D].沈阳:东北大学,2012.Guo Zhihao.Study on the Influence of Additives on Melting Point and Viscosity of Fluorine Free or Low Fluorine Flux[D].Shenyang:Northeastern University,2012.
[26]赵青松,仇圣桃,赖朝彬,等.组分对100 t LF高碱度精炼渣粘度和TC80钢脱硫的影响[J].特殊钢,2016,37(1):43-46.Zhao Qingsong,Qiu Shengtao,Lai Chaobin,et al.Effect of composition on viscosity of 100t LF high alkalinity refining slag and desulfurization of TC80 steel[J].Special Steel,2016,37(1):43-46.
[27]李士琦,李瑾,刘锦霞,等.五元精炼渣系熔化温度的研究[J].特殊钢,2010,31(3):1-2.Li Shiqi,Li Jin,Liu Jinxia,et al.Study on melting temperature of five element refining slag system[J].Special Steel,2010,31(3):1-2.
[28]史冠勇,张延安,牛丽萍,等.低氟CaF2-CaO-AlO3-MgO-SiO2系精炼渣的性能[J].过程工程学报,2011(4):695-700.Shi Guanyong,Zhang Yan'an,Niu Liping,et al.Properties of low fluorine CaF2-CaO-AlO3-MgO-SiO2refining slag[J].Journal of Process Engineering,2011(4):695-700.
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