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利用高炉渣制备微晶玻璃的研究
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摘要
随着工业的迅速发展,大量的废渣被排放到环境中。而高炉渣是冶金工业中排放量很大的一种废渣,也是宝贵的可再生资源。目前,大部分高炉渣用作矿渣水泥的原料,但附加值较低,不能满足目前国家提出的节能减排、节约资源的要求。
     高炉渣主要化学成分为CaO、Al2O3和Si02,它们是CaO-Al2O3-MgO-SiO2系微晶玻璃的重要组成。同时高炉渣中富含的Fe2O3(FeO)也可以作为微晶玻璃的有效晶核剂。以高炉渣为主要原料制备微晶玻璃为高炉渣的回收利用找到了新的、有效的途径,同时对于提高钢铁废渣的利用率、增加企业经济效益、减轻环境污染具有重要的意义。
     本文以云南某大型钢铁企业排放的高炉渣和废玻璃为主要原料,不添加晶核剂,采用一次烧结法制备了CaO(MgO)-Al2O3-SiO2系高炉渣微晶玻璃,其主晶相为透辉石(CaMgSi2O6).运用DSC和XRD等现代检测分析手段对高炉渣微晶玻璃的核化晶化温度和物相组成进行了分析,探讨了试样成型压力的选择、高炉渣加入量以及热处理工艺制度对微晶玻璃性能和晶相组成的影响。
     本文采用半干半湿成型法将试样压制成型。试样的成型压力对微晶玻璃的制备有一定的影响。经过研究讨论,选取压力范围在110-150MPa之间变动,随着成型压力的增大,微晶玻璃各项性能都得到改善。但是成型压力在110-130MPa范围时内单位压力对微晶玻璃性能的贡献率比在130-150MPa范围内的要大,同时考虑到模具寿命、能耗等因素,不是压力越大越好,而是要选择一个最佳点。综合各方面因素,选取成型压力为、130MPa。
     高炉渣的加入量对微晶玻璃的制备同样有一定的影响。不同高炉渣加入量所制备的微晶玻璃,其晶相组成不同,甚至主晶相都发生了变化。高炉渣加入量为35wt%时,微晶玻璃的主晶相为透辉石(CaMgSi2O6);高炉渣加入量为55wt%时,微晶玻璃的主晶相为镁黄长石(Ca2MgSi2O7).微晶玻璃的各项性能随高炉渣含量的变化而不同,35%高炉渣加入量得到的微晶玻璃各项性能最好,但是高炉渣利用率较低。在满足微晶玻璃性能要求前提下,为了最大限度地提高高炉渣的利用率,本文选择高炉渣的加入量为45wt%。
     优化高炉渣玻璃的热处理工艺参数也可以有效的提高微晶玻璃的综合性能。本文经优化后最佳的热处理工艺参数为:核化温度750℃,保温1.5h;晶化温度880℃,保温2.5h。升温速率为:5~10℃/min。
With the rapid development of industry, plenty of slag is ejected into environment. The blast slag is a waste which is emitted in large quantities in metallurgical industry. And it is also a valuable renewable resource. At present, the majority of blast slag is used as a raw material for slag cement. But it is not the most effective way, and it can not reach the requirements of saving energy, reducing emission and saving resource.
     The blast slag is mostly composed of CaO、Al2O3和SiO2,which are the important component of the CaO-Al2O3-MgO-SiO2 System glass-ceramics. Furthermore, Fe2O3(FeO) in the blast slag is an effective nucleation agent in the glass-ceramics system. So it is a new, effective way to prepare glass-ceramics materials by using the blast slag. It is the great significance for improving the utilization of steel slag, increasing the economic efficiency of enterprises and reducing the environmental pollution.
     In this paper, the glass-ceramics of CaO-MgO-Al2O3-SiO2 system had been initially prepared by direct sintering method using the blast slag produced by a certain steel corporation in Yunnan province and wasted glass. The major crystalline of the glass-ceramics was diopside (CaMgSi2O6). DSC was used to ascertain the heat-treatment temperature system, and XRD to characterize the phase composition. The effect of forming pressure, heat-treatment parameters and the content of the blast slag in raw material was discussed.
     In this paper, the sample was suppressed by semi-dry molding method. Along with the increase of the forming pressure, the properties of the glass-ceramics also changed. Through research, the pressure was changed between 110MPa and 150MPa. And along with the increase of the forming pressure, the performance of the glass-ceramics also was improved. It is faster to improve the performance of the glass-ceramics when the forming pressure increased from 110MPa to 130MPa than increasing from 130MPa to 150MPa. Taking into account the die life and energy consumption, not the greater pressure was the better, but we should choose the best points. Taking all factors, we determined that the pressure was 130MPa.
     Along with the increase of the content of the blast slag, the content of the crystal phase in the glass-ceramics was different, or even was changed. When the content of the blast slag was 35wt%, the major crystalline of the glass-ceramics was diopside (CaMgSi2O6). And when the content of the blast slag was 55wt%, the major crystalline of the glass-ceramics was akermanite (Ca2MgSi2O7). Along with the increase of the content of the blast slag, the properties of glass-ceramics were different. When the content of the blast slag was 35wt%, the properties of glass-ceramics were best. However, the utilization of blast slag was low. For meeting the performance requirements of glass-ceramics and maximizing the utilization of blast slag, we the content of the blast slag was 45wt%.
     The properties of the glass-ceramics can also be promoted by optimizing the heat-treatment parameters. The optimal heat-treatment parameters in this paper are: nucleated at 750℃for 1.5h, then crystallized at 880℃for 2.5h. The proper rate for heating is:5~10℃/min.
引文
[1]杨晓鸿,王志宏,王齐祖.从粉煤灰处理看环境协调性产品及材料的系统工程特征[J].材料导报,1995,9(6):6-9
    [2]周展明,樊庆恩.固体废弃物资源化的技术进展[J].有色金属(冶炼部分),1995,(1):45-48
    [3]Liu W., Liang K.M., Gu X.M., etal. Phase separation of CaO.Al2O3.SiO2 glasses induced by electric field [J]. Journal of Materials Science,1999,34(14):3455-3459
    [4]G.L.Leatherman, M.Tomozawa. Mechanical properties of a transformation toughened glass-ceramic [J]. Journal of Materials Science,1990,25(10):4488-4494
    [5]P.Alizadeh, V.K.Marghussian. Mechanical properties and bioactive characteristics of glass-ceramics [J]. American Ceramic Society Bulletin, 2000,81(3):21-26
    [6]Diaz C, Valle-Fuentes F.J., Zayas M.E., etal. Cordierite glass-ceramic from geothermic waste [J]. American Ceramic Society Bulletin,1999,78(3):62-64
    [7]何国平,黄文刻.磁记忆存储器微晶玻璃基板[J].材料导报,1998,12(3):34-36
    [8]Sohn Sung-Bum, Choi Se-Young, Lee Yong-keun. Controlled crystallization and characterization of cordierite glass-ceramics for magnetic memory disks substrate [J]. Journal of Materials Science,2000,35(19):4815-4821
    [9]段非,方承平,丁振亚.BaO-SrO-Ti02-SiO2透明极性微晶玻璃的研究[J].硅酸盐学报,1998,26(3):395-397
    [10]Wannagpn A, Ota R, Wakasugi T, etal. Formation and crystallization of gels in the Na2O-SiO2-TiO2-ZrO2 system [J]. Journal of Materials Science,2000,35(18): 4627-4634
    [11]岳振星,周济,张洪国等.微晶玻璃纳米复合材料的结构与性能[J].无机材料学报,1999,14(3):375-379
    [12]S.A.Markgraf, A.Halliyal, A.S.Bhalla, etal. X-ray structure refinement and pyroelectric investigation of fresnoite, Ba2TiSi2O8[J]. Ferroelectrics, 1985,62(1):20-25
    [13]P.W.McMillan. Glass-ceramics [M].2nd Edition, Academic Press, London,1979
    [14]唐绍裘,万隆,刘文超.高性能新材料-炉渣玻璃陶瓷研究与开发的若干问题[J].山东陶瓷,1999,22(4):13-16
    [15]商树伦.微晶玻璃装饰板材的生产[J].中国玻璃,1995,20(3):18-21
    [16]蒋伟锋.高炉水渣综合利用——用高比例高炉水渣制造微晶玻璃[J].中国资源综合利用,2003(3):28-29
    [17]刘洋,肖汉宁.高炉渣含量与热处理制度对矿渣微晶玻璃性能的影响[J].陶瓷,2003(6):17-20
    [18]杨家宽,肖波,姚鼎文等.黄磷渣微晶玻璃制备及显微结构分析[J].矿产综合利用,2003,4(2):40-43
    [19]肖汉宁,邓春明,彭文琴.工艺条件对钢铁废渣玻璃陶瓷显微结构的影响[J].湖南大学学报(自然科学版),2001,28(1):32-36
    [20]何峰,程金树等.钽铌尾矿在烧结微晶玻璃中的应用研究[J].玻璃,2003,30(1):3-5
    [21]纪柱.铬渣的危害及无害化处理综述[J].无机盐工业,2003,35(3):1-4
    [22]梁爱琴,匡少平,白卯娟.铬渣治理与综合利用[J].中国资源综合利用,2003(1):15-18
    [23]纪柱.铬渣的危害及无害化处理综述[J].无机盐工业,2003,35(3):1-4
    [24]马书文.铬渣治理与资源化综述[J].无机盐工业,1997,(2):19-22
    [25]Rezvani M., Eftekhari-Yekta B., Solati-Hashjin M., etal. Effect of Cr2O3, Fe2O3 and TiO2 nucleants on the crystallization behaviour of SiO2-Al2O3-CaO-MgO(R2O) glass-ceramics [J], Ceramics International,2005,31(1):75-80
    [26]Barbieri L., Leonelli C, Pellacani G.C., etal. Solubility, reactivity and nucleation effect of Cr2O3 in the CaO-MgO-Al2O3-SiO2 glassy system [J]. Journal of materials science, 1994,29(23):6273-6280
    [27]Marghussian V.K., Arjomandnia S.. Crystallisation behaviour of SiO2-Al2O3-CaO-MgO (R2O,Fe2O3,TiO2) glass ceramics in the presence of a Cr2O3 nucleant [J]. Physics and chemistry of glasses,1999,40(6):311-313
    [28]Pillay K., Von Blottnitz H., Petersen J.. Ageing of chromium(Ⅲ)-bearing slag and its relation to the atmospheric oxidation of solid chromium(Ⅲ)-oxide in the presence of calcium oxide [J]. Chemosphere,2003,52(10):1771-1779
    [29]肖汉宁,时海霞,陈钢军.利用铬渣制备微晶玻璃的研究[J].湖南大学学报(自 然科学版),2005,32(4):82-87
    [30]Wu Jeremy P., Rawlings Rees D., Boccaccini Aido R.. A glass-ceramic derived from high TiO2-containing slag:Microstructural development and mechanical behavior [J]. Journal of the American Ceramic Society,2006,89(8):2426-2433
    [31]肖兴成,江伟辉,王永兰等.钛渣微晶玻璃晶化工艺的研究[J].玻璃与搪瓷,1999,27(2):7-11
    [32]王志强,马铁成,马春等.酸洗硼镁渣微晶玻璃的研究[J].玻璃与搪瓷,1999,27(3):9-13
    [33]杨合,赵苏.高炉渣在建材领域的应用[J].矿产保护与利用,2004,1:47-51
    [34]董保澍.固体废弃物的处理与利用[M].北京,冶金工业出版社,1999
    [35]曹健.含稀土高炉渣的矿物组成及钍的赋存状态研究[J].矿业快报,2004,20(12):24-25
    [36]任中兴,许桦.首钢高炉渣微粉在混凝土中的应用[J].城市管理与科技,2003,5(4):162-163
    [37]陈惠君,董大奎,陈云芳等.钢渣玻璃及微晶玻璃的研究[J].玻璃与搪瓷,1988,16(2):1-7
    [38]梁忠友,李燕青.复合矿渣玻璃陶瓷的研制[J].现代技术陶瓷,1998,77(3):13-16
    [39]李彬,隋智通.铁尾矿和钦渣为主要原料的微晶玻璃的研究[J].中国玻璃,1997,22(2):22-25
    [40]Mirakbaral I. Development of crystallized fly ash and Its potenial application [J]. Trans Indian Cera Soc,1985,44(1):23-25
    [41]Eileen J.Deguire, Subhash H.Risbud. Crystallization and properties of glasses prepared from Illinois coal fly ash [J]. Journal of Materials Science,1984,19(6):1760-1766
    [42]张金青.利用粉煤灰生产建筑装饰用微晶玻璃[J].粉煤灰,2004,16(2):47-48
    [43]余湖海.火山凝灰岩微晶玻璃的研究[J].武汉工业大学学报,1997,19(4):36-40
    [44]梁忠友.赤泥微晶玻璃的研究[J].玻璃与搪瓷,1997,25(6):50-52
    [45]张培新,林荣毅,阎加强.赤泥微晶玻璃的研究[J].有色金属,2000,52(4):77-79
    [46]Young Jun Park, Jong Heo. Vitrification of fly ash from municipal solid waste incinerator[J]. Journal of Hazardous Materials,2002,91(1-3):83-93
    [47]Young Jun Park, Jong Heo. Conversion to glass-ceramics from glasses made by MSW incinerator fly ash for recycling [J]. Ceramics international,2002,28(6):689-694
    [48]Young Jun Park, Jong Heo, Soon Ok Moon. Crystalline phase control of glass ceramics obtained from sewage sludge fly ash [J]. Ceramics international,2003,29(2):223-227
    [49]T.W.Cheng, Y.S.Chen. On formation of Ca-Al2O3-SiO2 glass-ceramics by vitrification of incinerator fly ash[J]. Chemosphere,2003,51(9):817-824
    [50]T.W.Cheng, T.H.Ueng, Y.S.Chen. Production of glass-ceramic from incinerator fly ash[J]. Ceramics International,2002,28(7):779-783
    [51]廖其龙,蒋文玖.石棉尾矿微晶玻璃装饰板材的研制[J].玻璃,1997,24(6):31-34
    [52]刘世权,马永.烧结微晶玻璃研制过程中的若干问题的讨论[J].中国玻璃,1998,23(5)):18-21
    [53]韩文爵.低温烧成微晶玻璃基板的研制和应用[J].玻璃与搪瓷,1995,24(3):1-5
    [54]郭伟明,成茵,肖汉宁.烧结法制备Li2O-Al2O3-SiO2微晶玻璃的烧结制度及性能研究[J].陶瓷科学与艺术,2004,38(6):4-9
    [55]Watanabe K., Giess E.A.. Coalescence and crystallization in powdered high-cordierite (2MgO·2Al2O3·5SiO2) glass [J]. Journal of the American Ceramic Society,1985,68(4):102-130
    [56]龙文志.微晶玻璃及微晶玻璃幕墙[J].中国建材,2001,12(3):47-49
    [57]许淑惠,林宏飞,彭国勋等.矿渣微晶玻璃产品的研究与开发[J].玻璃与搪瓷,2000,28(2):51-56
    [58]Sandford E.A., Hall D.H. and Chu G.P.K. Semicrystalline glass and method of applying the same to metallic bases [P].U.S.:3368712,1968-01-13
    [59]谢为民,方承平.极性微晶玻璃的恒温定向析晶[J].硅酸盐学报,1997,25(1):115-118
    [60]卜东胜,张干城.抗热冲击微晶玻璃的红外辐射性能[J].无机材料学报,1994,6(2):151-155
    [61]何帅,陈吉华,苗鸿雁等.新型牙科氧化锆玻璃陶瓷复合材料初探[J].陶瓷工程,2001,35(1):3-5
    [62]A.Halliyal, A.S.bhalla, R.E.Newnham. Polar glass ceramics-A new family of electroceramic materials:Tailoring the piezoelectric and pyroelectric properties [J]. Materials Research Bulletin,1983,18(8):1007-1019
    [63]周亚栋.无机材料物理化学[M].武汉工业大学出版社,1994
    [64]彭文琴.CaO-MgO-A1203-SiO2系微晶玻璃的研究:[硕士学位论文].长沙:湖南大学,2000
    [65]印红羽,张华诚.粉末冶金模具设计手册(第2版)[M].机械工业出版社,2002
    [66]田英,王全喜,王二平等.热工制度对铁尾矿微晶玻璃的晶化行为及机械性能的影响研究[J].中国玻璃,2003,28(2):20-25
    [67]陈禾,梁开明,李力军等.热处理对CaO-A1203-SiO2系烧结微晶玻璃吸水率的影响[J].清华大学学报,1999,39(10):18-20

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