Thermodynamic Properties of Iron Ore and Iron Oxide
摘 要
采用热重分析-差示扫描量热法(TGA-DSC)同步热分析技术对铁矿和氧化铁皮的热力学特性进行了研究。利用STARe软件方法分别比较了铁矿和氧化铁皮在氧气气氛和氮气气氛中不同升温速率条件下的TGA和DSC曲线。结果表明:在氧气气氛中,20 K·min-1的升温速率下得到较为理想的铁矿和氧化铁皮特征曲线。还重点分析了铁矿和氧化铁皮的TGA及DSC曲线的差异,为两者的鉴别提供了一种新的方法。
Abstract
Thermodynamic characteristics of iron ore and iron oxide were studied by TGA-DSC synchronous thermal analysis. The TGA and DSC curves of iron ore and iron oxide in oxygen atmosphere and nitrogen atmosphere at different rates of temperature elevation were compared with STARe software. It was found that the characteristic curves of iron ore and iron oxide obtained in oxygen atmosphere under the rate of temperature elevation of 20 K·min-1 were more favourable. Stress was put on the analysis of differences between the curves of iron ore and iron oxide obtained by TGA and DSC, and a new method for discrimination of iron ore and iron oxide was provided.
中图分类号 O65 DOI 10.11973/lhjy-hx201702012
所属栏目 工作简报
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收稿日期 2016/2/26
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备注郭芬(1966-),女,河北新乐人,高级工程师,主要从事进出口矿产品相关项目的检测。E-mail:guof01@tjciq.gov.cn
引用该论文: GUO Fen,WU Su-ru,YANG Li-fei,LI Quan-bin. Thermodynamic Properties of Iron Ore and Iron Oxide[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2017, 53(2): 177~182
郭芬,武素茹,杨丽飞,李权斌. 铁矿和氧化铁皮的热力学特性[J]. 理化检验-化学分册, 2017, 53(2): 177~182
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【3】周俊虎,平传娟,杨卫娟,等.用热重红外光谱联用技术研究混煤热解特性[J].燃料化学学报, 2004,32(6):658-662.
【4】张斌,刘建忠,赵卫东,等.褐煤自然特性热衷实验及动力学分析[J].热力发电, 2014,43(6):71-74.
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【6】王茹,田宜水,赵立欣,等.基于热重法的生物质工业分析及其发热量测定[J].农业工程学报, 2014,30(5):169-177.
【7】范福南,王春福.大理岩型石墨矿中固定碳的测定方法[J].岩矿测试, 1999,18(2):135-138.
【8】岩石矿物分析编写小组.岩石矿物分析[M].4版.北京:地质出版社, 1974.
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【11】郑瑛,陈小华,周英彪,等.CaCO3分解机理与动力学参数的研究[J].华中科技大学学报, 2002,30(12):86-88.
【12】TURCANIOVA L, PAHOLIC G, MATEOVA K. Stimulating the thermaldecomposition of magnesite[J]. Thermochimica Acta, 1996,277:75-84.
【13】DONG K P, SANG D K, SEE H L, et al. Co-pyrolysis characteristics of sawdust and coal blend in TGA and a fixed bed reactor[J].Bioresource Technology, 2010,101(15):6151-6156.
【14】SHARMA S, GHOSHAL A K. Study of kinetics of co-pyrolysis of coal and waste LDPE blends under argon atmosphere[J]. Fuel, 2010,89(12):3943-3951.
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