+高级检索
SOM法电解过细高钛渣制备金属钛
作者:
作者单位:

贵州大学材料与冶金学院

作者简介:

通讯作者:

中图分类号:

TG146.4

基金项目:

国家自然科学基金资助(51664005,51574095,51474079);黔教合KY字(2015)334号;黔科合人才团队(2015)4005号;黔教合平台人才(2016)5626号


Preparation of Titanium by SOM Electrolytic Process from Ultrafine High Titanium Slag
Author:
Affiliation:

College of Material and Metallurgy,University

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为回收利用TiCl4生产过程中产生的过细高钛渣,在CaCl2熔盐中以预烧成型的过细高钛渣为阴极,采用固体透氧膜法(SOM法)直接电解制备金属钛,并研究了在1100 ℃、3.5 V电压下,高钛渣阴极的电脱氧历程和杂质的去除行为。结果表明:随着电解时间延长,阴极片逐渐收缩,孔隙率下降,颗粒尺寸增大,且电解6h得到金属钛表明SOM法具有较高的电流效率。过细高钛渣电脱氧历程为:TiO2→CaTiO3 →Ca(Ti2O4)→TiO →Ti,而Al、Mn、Fe、Si等杂质通过电解得到相应单质且大部分进入CaCl2熔盐,少量残留经稀盐酸洗涤被去除。

    Abstract:

    In order to recycle the ultrafine high titanium slag produced in TiCl4 production process, the titanium slag was sintered and employed as the cathode in a Solid Oxide Membrane (SOM) electrolytic process in molten CaCl2 to prepare metal Ti. The deoxidization process of the cathode and the behavior of impurities removing were studied at an electrolytic temperature of 1150 ℃with an electrolytic voltage of 3.5 V. Results showed with the increasing of electrolytic time, the size and porosity of cathode was decreased while the particle size in cathode was increased, and after 6 hours electrolyzing metal titanium was obtained which indicated the SOM process offered a high current efficiency. The deoxidization process of this electrolysis process was carried out as: TiO2→CaTiO3 →Ca(Ti2O4) → TiO→ Ti. Results also indicated the impurities which included Al, Mn, Fe, and Si were mostly reduced to corresponding elementary substance, which were moved into melting CaCl2. A small amount of residual impurities in cathode can be removed by washing with dilute hydrochloric acid.

    参考文献
    相似文献
    引证文献
引用本文

申园园,陈朝轶,李军旗,兰苑培. SOM法电解过细高钛渣制备金属钛[J].稀有金属材料与工程,2019,48(5):1671~1676.[Shen Yuanyuan, Chen Chaoyi, LI Jun-qi, Lan Yuan-pei. Preparation of Titanium by SOM Electrolytic Process from Ultrafine High Titanium Slag[J]. Rare Metal Materials and Engineering,2019,48(5):1671~1676.]
DOI:10.12442/j. issn.1002-185X.20171023

复制
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2017-11-11
  • 最后修改日期:2017-11-30
  • 录用日期:2017-12-18
  • 在线发布日期: 2019-06-04
  • 出版日期: