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化工学报  2014 

碳化钙真空还原硼镁石提取镁

DOI: 10.3969/j.issn.0438-1157.2014.06.025, PP. 2130-2136

Keywords: 分离,硼镁石,还原,,相变

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Abstract:

对以硼镁石为原料,以碳化钙为还原剂的真空热还原炼镁以实现硼镁分离进行了研究,通过对煅烧后的物料进行物相分析,对碳化钙还原硼镁石过程中氧化镁还原率较低的原因进行了分析,并对还原过程中影响氧化镁还原率的因素进行了探讨。研究结果表明:以硼镁石为原料进行煅烧后获得的煅后硼镁石的氧化镁主要以硼酸镁和硅酸镁化合物的形式存在,游离的氧化镁较少是导致还原过程中氧化镁还原率较低的主要原因。在煅烧过程中添加氧化钙可使以化合物形式存在的氧化镁游离出来大幅增加氧化镁的还原率。在煅烧过程中配入氧化钙后进行真空热还原炼镁可有效实现硼镁石中的硼镁分离,其还原过程中的氧化镁还原率可达85%以上,还原后获得的还原渣主要物相为CaO和3CaO·B2O3,可作为生产无碱玻璃纤维的原料,能够实现硼镁石的综合利用。

References

[1]  Yaping Liu, Manabu Tanaka, Sooseok Choi, and Takayuki Watanabe. In-Flight Particle Measurement of Alkali-Free Glass Raw Materials in 12-Phase AC Arc Plasma. Journal of Thermal Spray Technology. 2012, 21(5):863-867.
[2]  Antonín Smr?ek. Fiberglass and Glass Technology[M]. New York: Springer New York. 2010:229-250
[3]  Wu Xiaolei(武小雷). Study of Separation Magnesium and Boron from Szaibelyite Mineral and Boron Mud by Vacuum Thermal Process[D]. Shenyang: Northeastern University of China. 2012:55-70.
[4]  Wu Xiaolei(武小雷), FENG Naixiang(冯乃祥), PENG Jianping(彭建平),Wang Zhihui(王智慧), CHENG Enqing(程恩庆). Experimental Study on Vacuum Thermal Reduction of Ascharite Mineral with Silicon as Reductant[J]. The Chinese Journal of Process Engineering(过程工程学报). 2011,11(2):294-298.
[5]  XU Dong(徐冬), ZHANG Xianpeng(张显鹏), LI Gang(李刚), CHENG Enqing(程恩庆). Experimental Investigation on Vacuum-Thermal Reduction of Ascharite with Silicon-Aluminum Alloy as Reductant. Journal of Northeastern University( Natural Science) (东北大学学报(自然科学版)). 2008, 29(10):1455-1460.
[6]  PENG Jianping(彭建平), FENG Naixiang(冯乃祥), WU Xiaolei(武小雷), ZHOU Shigang(周时刚), DI Yuezhong(狄跃忠). Experiments study on magnesium extracted from ascharite by aluminothermic method[J]. Lightmetals(轻金属). 2012, (1):49-53.
[7]  PENG Jian-ping, WU Xiao-lei, FENG Nai-xiang, et al. Experimental study on vacuum thermal reduction of ascharite mineral with calcium carbide as reductant[A]. Vacuum Technol ogy and Surface Engineering-Proceeding of the 10 th Vacuum Met allurgy and Surface Engineering Conference. Shenyang: 2011:8-12.
[8]  XU Dong, ZHANG Xianpeng, LI Gang, CHENG En qing, SHI Chun hui. Research on vacuum thermal reduction of ascharite with calcium carbide as reductant. Ming&Metallurgy(矿冶). 2008, 17(2):39-43.
[9]  W?rterbuch GeoTechnik. Dictionary Geotechnical Engineering[M]. New York: Springer New York 2013:106
[10]  D. Minic, D. Manasijevic, Jelena Dokic et al. Silicothermic reduction process in magnesium production[J]. Journal of Thermal Analysisi and Calorimetry. 2008, (2):411-415.
[11]  Francesco Cherubini, Marco Raugei, Sergio Ulgiati. LCA of magnesium production technological overview and worldwide estimation of environmental burdens[J]. Resources, Conservation and Recycling. 2008,52:1093-1100.
[12]  HU Wenxin(胡文鑫),LIU Jian(刘建),FENG Naixiang(冯乃祥),PENG Jianping(彭建平). The effect of v illiaum ite on magnesium production by Al-Si-Fe a lloy therma l reduction of dolime[J]. Lightmetals(轻金属) 2010,(5):42-45
[13]  Wang Yaowu(王耀武), Feng Naixiang(冯乃祥), You Jing(尤晶), Hu Wenxin(胡文鑫). Study on the Effect of CaF2 Addition on the Process of Vacuum Aluminothermic Reduction. Chinese Journal of Vacuum Science and Technology(真空科学与技术学报). 2012,32(10):889-905.
[14]  Frederick T. Wallenberger. Fiberglass and Glass Technology[M]. New York: Springer New York. 2010:1-107
[15]  LIU Ran(刘然), XUE Xiangxin(薛向欣), LIU Xin(刘欣), WANG Dong-shan(王东山), CHA Feng(查峰), Progress on Chinese Boron Resource and the Current Situation of Boron-Bearing Materials[J]. Bulletin of the Chinese Ceramic Society(硅酸盐通报). 2006,25(6):102-106.
[16]  QIAN Hongwei(钱洪伟),XUE Xiangxin(薛向欣),AN Jing(安静). Status and prospect of key process technology in boron resource exploitation process[J] Modern Chemical Industry(现代化工). 2008, 28(4):28-32.
[17]  CHEN Yanwen(陈彦文),DING Xiangqun(丁向群),HU Yingze(胡英泽). Experimental study on optimizing the preparation process of boron sludge ceramics[J]. Bulletin of the Chinese Ceramic Society (硅酸盐通报). 2012,31(1):193-196.
[18]  GUO Day(郭大宇). Fabrication of Porous Forsterite Ceramics Using Boron Tailings as Raw Material. China Ceramic Industry(中国陶瓷工业). 2013,20(2):1-5.
[19]  Meng Zhang, Jukka Pekka Matinlinna. E-Glass Fiber Reinforced Composites in Dental Applications. Silicon. 2012(4):73-78
[20]  M. Yu. Kudryavtsev, Yu. I. Kolesov, N. Yu. Mikhailenko. Boron-Free, Alkali-Free Glass Fibre for Production of Fibreglass-Reinforced Plastics[J]. Fibre Chemistry. 2001,33(3):242-246.
[21]  Yu. I. Kolesov, M. Yu. Kudryavtsev, N. Yu. Mikhailenko. Types and Compositions of Glass for Production of Continuous Glass Fiber (Review) Glass and Ceramics. 2001, 58(5):197-202

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