东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (10): 1445-1448.DOI: 10.3969/j.issn.1005-3026.2015.10.017

• 材料与冶金 • 上一篇    下一篇

钒渣无焙烧浸出液中钒铁萃取分离

张莹， 张廷安， 吕国志， 刘卓林   

  1. (东北大学 材料与冶金学院， 辽宁 沈阳110819)
  • 收稿日期:2014-06-17 修回日期:2014-06-17 出版日期:2015-10-15 发布日期:2015-09-29
  • 通讯作者: 张莹
  • 作者简介:张莹(1991-)，女，江西赣州人，东北大学博士研究生； 张廷安(1960-)，男，河南周口人，东北大学教授，博士生导师.
  • 基金资助:
    国家高技术研究发展计划项目(2012AA062303).

Separation Between Vanadium and Iron in Acid Leaching Solution of Converter Vanadium Slag Without Calcination

ZHANG Ying， ZHANG Ting-an， LYU Guo-zhi， LIU Zhuo-lin   

  1. School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China.
  • Received:2014-06-17 Revised:2014-06-17 Online:2015-10-15 Published:2015-09-29
  • Contact: LYU Guo-zhi
  • About author:-
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摘要： 利用本课题组提出的钛白废酸无焙烧加压浸出钒渣提钒的新技术，以P204为萃取剂从废酸浸出钒渣的浸出液中进行了提钒研究.实验结果表明:采用亚硫酸钠为浸出液预处理还原剂，将浸出液中三价铁还原成二价铁，从而防止三价铁的共萃；常温条件下，当浸出液初始pH=2.5、水相与有机相体积比为1∶3，震荡时间为4min时，采用有机相组成为20%P204及10%TBP协同萃取体系，钒的萃取率可达98.61%以上，钒铁的分离系数可达135.3.

关键词: 转炉钒渣, 无焙烧, 钒萃取, 分离系数, 钛白废酸

Abstract: In view of a new process of leaching the converter vanadium slags with titanium dioxide waste acid under the pressure without calcination proposed by our research group， V extraction from the solution which using waste acid leaching vanadium slag was studied using P204 as the extraction agent. The results showed that the reduction of ferric iron into ferrous iron by Na2SO3 as a pretreatment reducing agent prevented ferric irons co-extracted into the leaching liquid. Under the optimal technological condition: at room temperature， leaching solution original pH of 2.5， the volume ratio of the aqueous phase to oil phase of 1∶3 and the shaking time of 4min， the extraction rate of V is more than 98.61%， and the separation factor between V and Fe is up to 135.3 using the 20%P204 with 10%TBP synergistic extraction system.

Key words: vanadium slag, without calcination, vanadium extraction, separation factor；titanium dioxide waste

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