Lü Bin, Ding WeiZhong, Shang XingFu, Tan DingSheng, Guo ShuQiang. Research on Oxidization-reduction-hydrochloric Acid Leaching Process to Prepare Titanium-rich Material with Ilmenite[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 1-6. doi: 10.7513/j.issn.1004-7638.2016.03.001
Citation:
Lü Bin, Ding WeiZhong, Shang XingFu, Tan DingSheng, Guo ShuQiang. Research on Oxidization-reduction-hydrochloric Acid Leaching Process to Prepare Titanium-rich Material with Ilmenite[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 1-6. doi: 10.7513/j.issn.1004-7638.2016.03.001
Lü Bin, Ding WeiZhong, Shang XingFu, Tan DingSheng, Guo ShuQiang. Research on Oxidization-reduction-hydrochloric Acid Leaching Process to Prepare Titanium-rich Material with Ilmenite[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 1-6. doi: 10.7513/j.issn.1004-7638.2016.03.001
Citation:
Lü Bin, Ding WeiZhong, Shang XingFu, Tan DingSheng, Guo ShuQiang. Research on Oxidization-reduction-hydrochloric Acid Leaching Process to Prepare Titanium-rich Material with Ilmenite[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 1-6. doi: 10.7513/j.issn.1004-7638.2016.03.001
State Key Laboratory of Advanced Special Steel Metallurgy and Preparation, Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, Shanghai University, Shanghai 200072, China
Received Date: 2016-04-06 Available Online:
2023-12-04
The process of oxidization-reduction-hydrochloric acid leaching was adopted to selectively leach the ilmenite from Panxi area.The effect of oxidization-reduction pretreatment on the grain size,surface morphology and microstructure of the ilmenite,and the influence of leaching conditions on the leaching rate of Fe and Ti from the ilmenite,TiO2 content in the leaching residue were investigated in this paper.The results indicate that after oxidization and reduction both the surface roughness and grain size of the ilmenite increase.The optimum leaching conditions are as follows:5:1 of liquid-solid ratio,4 mol/L of hydrochloric acid concentration,90℃ of leaching temperature for 5 h,with the ilmenite oxidized at 1 000℃ for 1 h and reduced at 800℃ for 1 h by hydrogen as raw materials for leaching.The leaching ratios of Fe and Ti under the optimal conditions are respectively 93.89% and 3.28%.The titanium-rich material with 87.51% TiO2 can be finally obtained with particle size of ilmenite well maintained.
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