Zhou Airan, Lu Ping. Study on the Track and Recycle of Vanadium in the Titanium Extraction from Blast Furnace Slag[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(2): 63-67. doi: 10.7513/j.issn.1004-7638.2015.02.011
Citation:
Zhou Airan, Lu Ping. Study on the Track and Recycle of Vanadium in the Titanium Extraction from Blast Furnace Slag[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(2): 63-67. doi: 10.7513/j.issn.1004-7638.2015.02.011
Zhou Airan, Lu Ping. Study on the Track and Recycle of Vanadium in the Titanium Extraction from Blast Furnace Slag[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(2): 63-67. doi: 10.7513/j.issn.1004-7638.2015.02.011
Citation:
Zhou Airan, Lu Ping. Study on the Track and Recycle of Vanadium in the Titanium Extraction from Blast Furnace Slag[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(2): 63-67. doi: 10.7513/j.issn.1004-7638.2015.02.011
Pangang Group Research Institute Co., Ltd., State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China
The reaction mechanism and track of vanadium were analyzed by theoretical calculation and sample detection during titanium extraction from blast furnace slag in Pangang by processes of high temperature carburization and low temperature chlorination. The results show that vanadium enters into the carbonization slag in the form of V2O3 during high temperature carburization of the blast furnace slag,then V2O3 reacts with chlorine in the process of low temperature chlorination and the product VOCl3 enters into coarse TiCl4. VOCl3 transforms into solid VOCl2 and stays in the residue through refining process. V2O5 satisfying the GB3283-1987 standard can be prepared by undergoing processes of calcination of the residue,salt roasting,leaching,and etc. Preliminary measurement indicates that about 50 tons of V2O5 can be recycled in producing every 10 000 tons of coarse TiCl4.