Technological Study of Titanium Slag Production from Titanium-Bearing Blast Furnace Slag

Abstract:

Titanium-bearing blast furnace slag in which TiO₂ content reaches to 20%~23% is a kind of precious secondary resource. The research utilizes the stable characteristic of TiO₂ in hydrochloric acid to digest acid-soluble matters in slag. Titanium-bearing slag is obtained after solid-liquid separation process. The optimum acidolysis reaction condition can be known through analysis of raw material granularity, acid-slag ratio, reaction temperature and effect caused by reaction time on TiO₂ content in slag. XRD image analysis can prove that the chemical compounds of Al、Mg、Fe are totally acid-thinned and TiO₂ content in slag reaches to above 40%. This technology provides a valuable new way for the comprehensive utilization of titanium-bearing Slag.

• Periodical: Advanced Materials Research (Volumes 962-965)
• Pages: 793-796
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.962-965.793
• Online since: June 2014
• Authors: Guang Qiang Ma*, Ming Cheng
• Keywords: Acidolysis, Blast Furnace Slag, TiO₂, Titanium-Bearing Slag

References

[1] Ma Jiayuan, Sun Xiwen, Diao Risheng. Theory and Practice of smelting vanadium titanium magnetite with BF[M]. Beijing: Metallurgical Industry Press, 2000. 27-32.

[2] Chen Qifu, Zhang Yanqiu, Fang minxian. Study on Panzhihua Iron and Steel blast furnace slag extraction of titanium dioxide and oxide of scandium[J]. Steel Vanadium Titanium, 1991, 12(3): 30-35.

[3] Liu Xiaohua, Sui zhitong. Kinetics of leaching Ti-bearing slag by dilute sulphuric acid[J], Chinese Journal of Nonferrous Metals, 2003, 3. 293-296.

[4] Liu Xiaohua, Sui zhitong. Leaching of Ti-bearing blast furnace slag by pressuring[J]. Chinese Journal of Nonferrous Metals, 2002. 12.

[5] Xu Chuzhao, Li Shuzu. Multipurpose utilization of blast furnace slags[J]. Vanadium Titanium, 1993(5): 47-50. 281-284.

[6] Duan Chenglong, Mi Ankang, Zhang Qunyan. Utilization of titaniferous resources in Panxi[J]. Multipurpose Utilization of Mineral Resources. 2000(2): 30-33.

[7] Peng Yi. Thermodynamic analysis on the slective chlorination of carbonized Pangang BF slag at low temperation[J]. Titanium Industry Progress, 2005, 22(6): 45-48.

[8] Wang Xiaoli, Liu Xiaoming, Wen Shuming. The actuality of multipurpose utilization of Panzhihua blast furnace slags[J]. Metallic Ore Dressing Abroad, 2000, 27(3): 15-18.

[9] Zhou Zhiming, Zhang Binghuai, Zhu Zizong. A test of titania separation from high titania bearing blast furnace slag[J]. Steel Vanadium Titanium, 1999, 20（4）：36-38.

[10] Sun Kang, Wu Jianhui. Fundamental study of new treatment process for titaniferous blast furnace slag at Pangang using phase separation[J]. Steel Vanadium Titanium, 2000, 21（3）：53-57.

[11] Wang haizhou. Analysis of refractory Materials [M]. Beijing: Science Press, 2005: 263-266.