Research of Acidolysis Performance of Acid-soluble Titanium Slag
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摘要: 采用物相分析及成分分析等方法对酸溶性钛渣的酸解性能进行研究。结果表明,酸溶性钛渣的酸解性能受钛渣品位、金红石型TiO2含量、钛渣物相等因素的影响。其中,钛渣黑钛石物相的酸溶性能好坏直接影响钛渣的酸解性能,而Fe含量是影响黑钛石酸溶性好坏的主要因素;钛渣品位及钛渣中的金红石型TiO2也将对钛渣的酸解性能产生较大影响;FeO和MgO对钛渣的酸解性能起促进作用,而CaO、SiO2和Al2O3则抑制钛渣的酸解。冶炼过程中控制钛渣F值(即TFe (当量)/TTi)在0.28以上,钛渣酸解率可达95%。Abstract: The acidolysis performance of acid-soluble titanium slag is studied via phase and content analyzing in this paper.The experiment results show that the acidolysis rate of titanium slag was affected by the mass content of TiO2 and Rutile and phase in titanium slag.The acidolysis performance of anosovite impact directly on the acidolysis rate of titanium slag, particularly the Fe content in anosovite.Additionally, the mass content of TiO2 and rutile in titanium slag would affect the performance of titanium slag too.The FeO and MgO in titanium slag is beneficial to the enhancement of titanium slag while the CaO、SiO2 and Al2O3 go against.Keeping TFe (equivalent) /TTi ratio upper 0.28 in titanium slag would make the acidolysis rate come up to 95% or higher.
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Key words:
- titanium slag /
- acidolysis /
- acid-soluble performance /
- acidolysis rate /
- anosovite /
- rutileTiO2
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