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黄金科学技术 ›› 2015, Vol. 23 ›› Issue (5): 99-104.doi: 10.11872/j.issn.1005-2518.2015.05.099

• 冶炼技术与装备研发 • 上一篇    

氯化冶金炉耐火材料腐蚀、黏附行为研究

付国燕1,2,丁剑1,2,魏连启1,仉小猛1,刘娅 1,2,叶树峰1*   

  1. 1.中国科学院过程工程研究所,北京   100190;
    2.中国科学院大学,北京   100049
  • 收稿日期:2015-07-10 修回日期:2015-08-11 出版日期:2015-10-28 发布日期:2015-12-09
  • 通讯作者: 叶树峰(1966-),男,江西余干人,研究员,从事冶金反应过程研究工作。 E-mail:sfye@home.ipe.ac.cn
  • 作者简介:付国燕(1987-),女,山东德州人,博士研究生,从事材料化学研究工作。gyfu@home.ipe.ac.cn
  • 基金资助:

    国家自然科学基金项目“复杂体系无机涂层高温黏附特征响应机理及过程调控”(编号:51202249)和中国科学院“战略重点研究计划”“纳米材料规模化生产中的质量控制体系”(编号:XDA09040100)联合资助

Study on the Corrosion and Adhesion Behavior of Chloridizing Metallurgy Furnace

FU Guoyan1,2,DING Jian1,2,WEI Lianqi1,ZHANG Xiaomeng1,LIU Ya1,2,YE Shufeng1   

  1. 1.Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing    100190,China;
    2.University of Chinese Academy of  Sciences,Beijing    100049,China
  • Received:2015-07-10 Revised:2015-08-11 Online:2015-10-28 Published:2015-12-09

摘要:

氯化冶金工艺中炉料成分复杂,易对氯化冶金炉耐火材料产生腐蚀、黏附,影响耐火材料的寿命,并阻碍氯化焙烧提金工艺产业化。将4种常见Al2O3-SiO2系耐火砖小块放入炉料中长时间焙烧,分析其接触面的物相,得出含CaCl2的矿粉在高温下对耐火材料的界面腐蚀特性:1 200 ℃下高铝耐火砖不粘料、不与炉料反应,高硅耐火砖中SiO2则会与炉料中Ca反应而被侵蚀;1 250 ℃时由于铁氧化物在氧化铝中的固溶及低熔点物质的生成,高铝耐火砖开始发生炉料的黏附;1 250 ℃时高硅耐火砖开始发生炉料的渗入,并由于Ca元素与SiO2的反应而被侵蚀;随着温度的升高,Fe2O3在AlO3中的固溶量增加,1 300 ℃时铁在高铝耐火材料中的富集更为明显。

关键词: 氯化冶金, 耐火材料, 腐蚀, 黏附

Abstract:

Furnace burden is chemically complex in the chloride metallurgy process.Complex components of furnace burden can corrode or adhere to refractory material,which reduces the working life of refractory material and then has a strong impact on the industrialization of chloridizing-roasting gold-extracting process.Small chunks of four kinds of common firebrick were put in the furnace burden and roast.Through analyzing the phases of contact surface the high temperature surface corrosion properties caused by minerals containing CaCl2 were found.It suggests that firebricks which contain more Al2O3 are not adhesive to furnace burden,and they are chemical stable in that condition.Firebricks which contain more SiO2 will react with Ca at 1 200 ℃.The furnace burden clings to high Al2O3 content firebricks because iron oxides can be solid dissolved in Al2O3 and materials of low melting point are generated at 1 250 ℃.The content of Fe2O3 which is solid dissolved in Al2O3 increases with rising temperature.Iron enrichment of high Al2O3 content firebricks is more obvious at 1 300 ℃.

Key words: chloridizing metallurgy, refractory material, corrosion, adhesion

中图分类号: 

  • TF806
[1] 丁剑,孙建伟,钱鹏,等.氯化焙烧回收高铁硫酸烧渣中有价金属的实验研究[J].计算机与应用化学,2012,29(3):255-261.
[2] 梅冬和.氯化球团工程防腐简介[J].现代冶金,1982,(4):106-114.
[3] 韩晓光.高炉煤气中HCl对耐火材料侵蚀过程的研究[D]. 唐山:河北联合大学,2013.
[4] 刘化升.氨碱废液法氯化钙生产设备的腐蚀与防护[J].纯碱工业,2014,(4):30-32.
[5] 王艳波.高浓度氯离子介质中铝、铜合金的腐蚀与防护研究[D].重庆:重庆大学,2005.
[6] 潘葱英.垃圾焚烧炉内过热器区HCl高温腐蚀研究[D].杭州:浙江大学,2004.
[7] Abels J M,Strehblow H H.A surface analytical approach to the high temperature chlorination behaviour of inconel 600 at 700 ℃[J].Corrosion Science,1997,39(1):115-132.
[8] Zahs A,Spiegel M,Grabke H J.Chloridation and oxidation of iron,chromium,nickel and their alloys in chloridizing and oxidizing atmospheres at 400-700 ℃[J].Corrosion Science,2000,42(6):1093-1122.
[9] Nielsen H P,Frandsen F J,Dam-Johansen K,et al.The implications of chlorine-associated corrosion on the operation of biomass-fired boilers[J].Progress in Energy and Combustion Science,2000,26(3):283-298.
[10] Hossain M K,Saunders S R J.A microstructural study of the influence of NaCl vapor on the oxidation of a Ni-Cr-Al alloy at 850 ℃[J].Oxidation of Metals,1978,12(1):1-22.
[11] 王维邦.耐火材料工艺学[M].北京:冶金工业出版社,2012:75-77.
[12] 丁剑,叶树峰.焙烧氰化渣氯化挥发提金的研究[J].黄金科学技术,2014,22(4):113-117.
[13] 聂建华,乔婉,张子洋,等.氧化铁与球团矿回转窑耐火材料的作用机理研究[J].稀有金属材料与工程,2011,40(增):174-177.
[14] 王筱留.钢铁冶金学(炼铁部分)[M].北京:冶金工业出版社,2008:39.
[15] 张子洋,梁永和,余为,等.球团矿回转窑物料对耐火材料的侵蚀研究[C].第十一届全国耐火材料青年学术报告会,2008.
[16] 赵世柯,黄勇,黄校先,等.含Al2O3/SiO2体系反应烧结过程中莫来石的形成[J].陶瓷学报,2002,23(3):149-155.
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