Research on Boron Extraction Rate of Boron-Containing Slag and its Industrial Experimental Conditions

Abstract:

With the boron-containing slag separated from ludwigite in the 13m³ blast furnace as crude material, cooling experiments in practice are fulfilled, where reasonable boron-containing slag cooling technic and industrial cooling installation conditions in industrial practice are obtained. Relationship between cooling rate and extraction rate of boron is observed. That is, as long as cooling rate keeps below 2°C/min in the temperature range of 1200°C~900°C , average boron extraction rate increases with the rise of cooling rate in the temperature range of 1500°C~1200°C and could reach up to 80%. This result is coincided with that of laboratory research.The experimental result demonstrates that twin zone cooling technology could be fulfilled in practice. Meanwhile, the way for the future cooling equipments design is pointed out. This study has scientific values for both practice and theory on multipurpose utilization of mineral resources.

• Periodical: Applied Mechanics and Materials (Volume 467)
• Pages: 138-145
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.467.138
• Online since: December 2013
• Authors: Lu Shan Liu*, Wen Bin Liu, Hong Ren Zhan, Li Peng Wang
• Keywords: Boron Extraction Rate, Boron-Rich Slag, Cooling Installation, Cooling Rate

References

[1] LIU Sulan, Chen JI, Zhang Xianpeng. Study on Leaching Boron-Rich Slag with H2SO4[J]. Journal of Northeastern University. 1996, 17(4) : 378-380.

[2] LIU Ran, Xue Xiangxin, JIANG Tao, ZHANG Shuhui, DUAN Peining, YANG He, HUANG Dawei. The Current Situation and Development of Boron and Boride[J]. Materials Review. 2006, 20(6): 1-4.

[3] PEIXIN ZHANG, ZHITONG SUI. Effect of Factors on the Extraction of Boron from Slags[J]. Metallurgical and Materials Transactions, 1995, 26(2): 345 -351.

DOI: 10.1007/bf02660977

[4] Sui Zhitong, Zhang Peixin. Studies on the behavior of boron containing in the metallurgieal slag[J]. In: Proc of Sino-Amerlnter Tech Trans Symp. Shenyang. China. Northeastern University, 1993: 217.

[5] LIU Liping, LANG Jianfeng. Activity of B-rich slag in MgO-B2O3-SiO2 [J]. Journal of Hebei Institute of Technology, 2000, 22(4): 18-21.

[6] Liu Sulan, Zhang Xianpeng, Cui Chuanmeng. Study on extracting boron from boron-rich slag[J]. Chemical mining technology. 1997, 26(5): 38-40.

[7] ZHANG Tingan, WANG Yanling, YANG Huan, CHEN Zhongxin, ZHANG Xianpeng, HEJicheng, SHAO Jianhui, CHUI Yaqi. Study of Industrial Amplification of Cooling Process of Boronic Slag-Mathematical Model[J]. Journal of Northeastern University. 1998, 19s : 256-261.

[8] Holman J P. Heat Transfer[M]. Washington：McGraw-Hill Education(Asia)Co, 2005: 139-145.

[9] Cui Chuanmeng, Liu Sulan, Zhang Xianpeng, Xu Xiuguang, Liu Liang, WenYusheng. Determinations of Viscosity and Melting Point of Boron-Rich Slags [J]. Journal of Northeastern University. 1994, 15(6) : 623-627.

[10] Lang Jianfeng, Cao Wenhua, Zhang Xianpeng, Ge Jun. Effect of Chemical Composition on the Activity and Phase structure of Boron-Rich Slag[J]. Multipurpose Utilization of Mineral Resources, 1997, 1；41-44.

[11] Flemings M C. Solidification Processing. New York: Mc-Graw-Hill Book Company, 1974. 152.

[12] Onorato P I K, Uhlmann D R. Nucleating heterogeneities and glass formation [J] . J Non-Cryst Solids, 1976; 22(2): 367-378.

DOI: 10.1016/0022-3093(76)90066-1

[13] Kobayashi R, Warren J A, Carter W C. Vector-valued phase field model for crystallization and grain boundary formation [J]. Physion, 1998, D119: 4155.

DOI: 10.1016/s0167-2789(98)00026-8

[14] Alexander E, Lobkovsky an, James A, Warren. Sharp interface limit of a phase-field model of crystal grains[J]. Physical Review E, 2001. 63, 051605[10 pages].

DOI: 10.1103/physreve.63.051605

[15] U. Klement,U. Erb K.T. Austl. Investigations of the Grain Growth Behaviour of Nanocrystalline Nickel[J]. NanaStrnctured Matuiala. 1995, 6. pp.581-584.

[16] B. Nami, S.G. Shabestari, S.M. Miresmaeili, H. Razavi, Sh. Mirdamadi. The effect of rare earth elements on the kinetics of the isothermal coarsening of the globular solid phase in semisolid AZ91 alloy produced via SIMA process[J]. Journal of Alloys and Compounds 489 (2010).

DOI: 10.1016/j.jallcom.2009.09.112

[17] ZHANG Peixin, SUI Zhitong, LUO Dongmei. Study on Crystallization Kinetics of Component Containing Boron in MgO-B2O3-SiO2-Al2O3-CaO Slag[J]. Chinese Journal of Materials Research, 1995, 9: 66-70.