Lin Fan, Yang Jian, Chen Kui, Zhao Dong, Liu Songli, Liu Guoqing. Effect of Pre-oxidation on Pulverization of Yunnan Titanium Concentrate during Hydrochloric Acid Leaching[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(1): 7-11. doi: 10.7513/j.issn.1004-7638.2016.01.002
Citation:
Lin Fan, Yang Jian, Chen Kui, Zhao Dong, Liu Songli, Liu Guoqing. Effect of Pre-oxidation on Pulverization of Yunnan Titanium Concentrate during Hydrochloric Acid Leaching[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(1): 7-11. doi: 10.7513/j.issn.1004-7638.2016.01.002
Lin Fan, Yang Jian, Chen Kui, Zhao Dong, Liu Songli, Liu Guoqing. Effect of Pre-oxidation on Pulverization of Yunnan Titanium Concentrate during Hydrochloric Acid Leaching[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(1): 7-11. doi: 10.7513/j.issn.1004-7638.2016.01.002
Citation:
Lin Fan, Yang Jian, Chen Kui, Zhao Dong, Liu Songli, Liu Guoqing. Effect of Pre-oxidation on Pulverization of Yunnan Titanium Concentrate during Hydrochloric Acid Leaching[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(1): 7-11. doi: 10.7513/j.issn.1004-7638.2016.01.002
Synthetic rutile as a good substitute for natural rutile is greatly used for production of titanium dioxide by chlorination process and sponge titanium.According to the physical and chemical properties of Yunnan titanium concentrate,pre-oxidation and hydrochloric acid leaching method was used to prepare synthetic rutile for researching the effect of pre-oxidation treatment on the leaching rate and pulverization.The results show that the structure of titanium concentrate is changed and the pulverization during hydrochloric acid leaching process is resolved by pre-oxidation.With 20% hydrochloric acid and 5:1 of acid/ore ratio,heating to boiling for leaching the titanium concentrate oxidized at 750℃ for 30 min can obtain synthetic rutile with only 3.29% of particles less than 74μm and 77.1% of grade.
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