Zhang Peng, Liu Daijun, Mao Xuehua. Study on Preparation of TiO2 from Aqueous TiCl4 Solution by Pyrohydrolysis[J]. IRON STEEL VANADIUM TITANIUM, 2013, 34(5): 19-22. doi: 10.7513/j.issn.1004-7638.2013.05.004
Citation:
Zhang Peng, Liu Daijun, Mao Xuehua. Study on Preparation of TiO2 from Aqueous TiCl4 Solution by Pyrohydrolysis[J]. IRON STEEL VANADIUM TITANIUM, 2013, 34(5): 19-22. doi: 10.7513/j.issn.1004-7638.2013.05.004
Zhang Peng, Liu Daijun, Mao Xuehua. Study on Preparation of TiO2 from Aqueous TiCl4 Solution by Pyrohydrolysis[J]. IRON STEEL VANADIUM TITANIUM, 2013, 34(5): 19-22. doi: 10.7513/j.issn.1004-7638.2013.05.004
Citation:
Zhang Peng, Liu Daijun, Mao Xuehua. Study on Preparation of TiO2 from Aqueous TiCl4 Solution by Pyrohydrolysis[J]. IRON STEEL VANADIUM TITANIUM, 2013, 34(5): 19-22. doi: 10.7513/j.issn.1004-7638.2013.05.004
Taking TiOCl2 solution prepared by hydration of TiCl4 as raw material,crystalline TiO2powder was prepared by pyrohydrolysis of self-generating seed crystal under a pressure of 1 atm. With Ti4+ concentration in the initial TiOCl2 solution of 0.5 mol/L,after reaction at 106℃ for 120 min,the product obtained was proved to be a mixture of rutile,anatase and brookite powder by X-ray diffraction analysis. And pure rutile TiO2 powder could be prepared after calcination. The influence of the concentration of Ti4+ and reaction temperature and time on size distribution of the products was investigated. It can be concluded that with Ti4+ concentration of 0.5 mol/L and reaction time of 120 min,TiO2 power with minimum particle size can be obtained,and as the hydrolysis temperature reduces,the TiO2 particle size becomes smaller.