BY-4型纳米陶瓷基高温防氧化涂层材料对铝电解用碳素阳极的抗氧化应用
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摘要
在铝电解过程中,提高阳极抗氧化性是目前电解铝用碳素阳极的热点和难点。本文通过在420 k A系列碳素阳极表面涂覆BY-4型纳米陶瓷基高温防氧化涂层材料(简称纳米涂料),分析并验证了涂覆该纳米涂料的碳素阳极在实际工业生产中的抗氧化效果、对电解质体系的影响,最后对其项目扩大试验范围经济效益进行了测算。结果表明,该纳米涂料能够很好的缓解炭块的氧化掉渣、从而延长阳极使用周期1.33天;因该纳米涂料带入的微量K、Si杂质元素对铝质量、电解质体系无不良影响;涂有该纳米涂料的碳素阳极社会经济效益显著。
Improvement of anode oxidation resistance is the hotspot and difficult problem of carbon anode for electrolytic aluminum at present during the aluminum electrolysis process. BY-4 nano-ceramics base high temperature anti-oxidation coating material( after referred to as "nano-coating") is coated on 420 k A series carbon anode surface,the anti-oxygen protective effect and the effect to electrolyte system in the actual industrial production of carbon anode by coating of this nano-coating is analyzed and verified,finally,the economic benefit of the project expanding test range is measured and calculated. The results show,this nano-coating can better relief the oxidized scaling-off of carbon block,thereby the life cycle of anode can be extended by 1. 33 day; the trace K,Si impurity elements taken by this nano-coating has no bad effect to the aluminum quality,electrolyte system; the carbon anode coated with this nano-coating has the obvious social economy benefit.
Improvement of anode oxidation resistance is the hotspot and difficult problem of carbon anode for electrolytic aluminum at present during the aluminum electrolysis process. BY-4 nano-ceramics base high temperature anti-oxidation coating material( after referred to as "nano-coating") is coated on 420 k A series carbon anode surface,the anti-oxygen protective effect and the effect to electrolyte system in the actual industrial production of carbon anode by coating of this nano-coating is analyzed and verified,finally,the economic benefit of the project expanding test range is measured and calculated. The results show,this nano-coating can better relief the oxidized scaling-off of carbon block,thereby the life cycle of anode can be extended by 1. 33 day; the trace K,Si impurity elements taken by this nano-coating has no bad effect to the aluminum quality,electrolyte system; the carbon anode coated with this nano-coating has the obvious social economy benefit.
引文
[1]肖述兵.铝电解预焙阳极脱落原因分析及对策[J].甘肃冶金,2015,37(1):45-48.
[2]徐艳.预焙阳极质量提高的主要途径[J].河南冶金,2001,6(47):32-34.
[3]崔东生.提高预焙阳极质量的途径[J].轻金属,1999(5):47-49.
[4]杜桂玲,于易如,贾鲁宁,等.提高阳极CO2反应性和空气反应性实验研究[J].炭素工艺与设备,2007(12):67-77.
[5]赵永金.提高铝用碳阳极质量的工艺优化研究[D].长沙:中南大学,2004.
[6]高守磊,夏金童,涂川俊,等.预焙阳极氧化机理与提高抗氧化性主要方法[J].炭素技术,2008,2(27):37-40.
[7]李浩.添加氧化铝对铝用碳素阳极性能影响的研究[D].沈阳:东北大学,2011.
[8]Xiao,J;Li,J;Zhou,Z;et al.Industrial preparation and performance testing of property-modified prebaked carbon anodes for aluminum electrolysis[J].TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2003,13(1):199-202.
[9]E.Olsen and J.Thonstad.The behavior of nickel ferrite cermet materials as inert anodes[J].Light Metals,1996.
[10]张丽鹏,于先进,高芝媛.铝电解用金属基惰性阳极材料的研究进展[J].硅酸盐通报,2008,27(1):105-111.
[11]周新林.电解铝用阳极研究进展综述[J].青海科技,2003(6):25-27.
[12]丁金城,于先进,赵增典.铝电解用惰性阳极研究现状[J].工业科技,2006,35(4):51-75.
[13]郭峰.路电解用金属基惰性阳极材料的开发与展望[J].粉末冶金材料科学与工程,2007,12(3):134-138.
[14]叶绍龙,肖劲,杨建红,等.铝电解用改性预焙碳阳极实验室研究[J].有色金属学报,2003,13(1):245-254.
[15]朱永松.添加剂对铝用碳素阳极的催化活性研究[D].长沙:中南大学,2004.
[16]李庆宏,王平甫.铝用碳阳极添加剂的额研究与应用[J].炭素技术,1999(6):34-36.
[17]于亚鑫,邱竹贤.三氟化铝在碳阳极中的作用[J].轻金属,1998(7):45-47.
[2]徐艳.预焙阳极质量提高的主要途径[J].河南冶金,2001,6(47):32-34.
[3]崔东生.提高预焙阳极质量的途径[J].轻金属,1999(5):47-49.
[4]杜桂玲,于易如,贾鲁宁,等.提高阳极CO2反应性和空气反应性实验研究[J].炭素工艺与设备,2007(12):67-77.
[5]赵永金.提高铝用碳阳极质量的工艺优化研究[D].长沙:中南大学,2004.
[6]高守磊,夏金童,涂川俊,等.预焙阳极氧化机理与提高抗氧化性主要方法[J].炭素技术,2008,2(27):37-40.
[7]李浩.添加氧化铝对铝用碳素阳极性能影响的研究[D].沈阳:东北大学,2011.
[8]Xiao,J;Li,J;Zhou,Z;et al.Industrial preparation and performance testing of property-modified prebaked carbon anodes for aluminum electrolysis[J].TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2003,13(1):199-202.
[9]E.Olsen and J.Thonstad.The behavior of nickel ferrite cermet materials as inert anodes[J].Light Metals,1996.
[10]张丽鹏,于先进,高芝媛.铝电解用金属基惰性阳极材料的研究进展[J].硅酸盐通报,2008,27(1):105-111.
[11]周新林.电解铝用阳极研究进展综述[J].青海科技,2003(6):25-27.
[12]丁金城,于先进,赵增典.铝电解用惰性阳极研究现状[J].工业科技,2006,35(4):51-75.
[13]郭峰.路电解用金属基惰性阳极材料的开发与展望[J].粉末冶金材料科学与工程,2007,12(3):134-138.
[14]叶绍龙,肖劲,杨建红,等.铝电解用改性预焙碳阳极实验室研究[J].有色金属学报,2003,13(1):245-254.
[15]朱永松.添加剂对铝用碳素阳极的催化活性研究[D].长沙:中南大学,2004.
[16]李庆宏,王平甫.铝用碳阳极添加剂的额研究与应用[J].炭素技术,1999(6):34-36.
[17]于亚鑫,邱竹贤.三氟化铝在碳阳极中的作用[J].轻金属,1998(7):45-47.