文章摘要
含钛渣短流程直接制备钛及其合金
Direct preparation of Ti and its alloy from Ti bearing slag
投稿时间:2014-02-27  
DOI:
中文关键词: 含钛渣  钛合金  熔盐电解  固体透氧膜法
英文关键词: Ti-bearing slag  Ti alloy  molten salt electrolysis  SOM process
基金项目:贵州省科技基金资助项目(J20102227).
作者单位E-mail
陈朝轶 贵州大学材料与冶金学院,贵州 贵阳,550025 ccy197715@126.com 
张 曼 贵州大学材料与冶金学院,贵州 贵阳,550025  
李军旗 贵州大学材料与冶金学院,贵州 贵阳,550025  
鲁雄刚 上海大学材料科学与工程学院,上海, 200072  
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中文摘要:
      利用固体透氧膜(SOM)法直接由含钛渣还原制备金属钛及其合金。将粉态含钛渣压片制成阴极,以YSZ管内碳粉饱和的铜液为阳极,以1100℃电解温度、3.5V槽电压在CaCl2熔盐中电解,研究成型压力及电解时间对电解产物的影响,分析电解过程中的杂质行为。结果表明,随电解时间的延长,电解产物中的钛、铁含量不断增大,产物颗粒形貌趋于匀细疏松;对于铁钛渣,电解6h可获得钛铁合金;对于高钛渣,成型压力为3MPa时,电解4h可除去氧,电解6h可获得纯金属钛;较小成型压力下的多孔阴极有利于杂质元素的去除。
英文摘要:
      Ti and Ti alloy were prepared by solid oxygen-ion membrane (SOM) process from Ti-bearing slag directly. Ti-bearing slag powder was pressed into pellets and then employed as the cathode, and carbon-saturated liquid copper loaded in YSZ tube was used as the anode, which were electrolyzed in molten CaCl2at 1100℃ with a potential of 3.5V. The influence of forming pressure and electrolytic time on electrolytic products was analyzed. The results show that Ti and Fe increase in content with electrolytic time, whose morphology develops towards even, fine and loose. Ti-Fe alloy can be obtained from Ti-Fe slag after electrolysis for 6h, and for Ti-rich slag, when the forming pressure is 3MPa, electrolysis for 4h can remove oxygen completely and for 6h, yield pure Ti. Under small forming pressure, the porous cathode helps remove the impurities.
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