欢迎访问《现代矿业》杂志官方网站,今天是 分享到:

现代矿业 ›› 2011, Vol. 27 ›› Issue (12): 12-14.

• 采选工程 • 上一篇    下一篇

石煤酸浸过程酸浓度与电位变化

何东升,秦芳,徐雄依   

  1. 武汉工程大学环境与城市建设学院
  • 出版日期:2011-12-13 发布日期:2011-12-21
  • 基金资助:

    * 武汉工程大学科学研究基金资助项目(编号:13105043)。

Changes of Acid Concentration and Electric Potential in Acid Leaching Process of Stone Coal

He Dongsheng,Qin Fang,Xu Xiongyi   

  1. School of Environment and Civil Engineering, Wuhan Institute of Technology
  • Online:2011-12-13 Published:2011-12-21

摘要: 研究了浸出时间、浸出温度、H2SO4初始浓度与浸出液剩余酸浓度的关系,考查了浸出过程中浸出矿浆电位变化。结果表明,浸出液剩余酸浓度不随浸出时间、浸出温度变化,酸浸过程中消耗的H2SO4量占初始H2SO4量的66%左右;浸出4 h后,矿浆电位发生变化,由610 mV降低到480 mV,钒浸出率达到平衡时,矿浆电位亦保持不变。

关键词: 石煤, 钒, 酸度, 电位

Abstract: Relationships between leaching time, leaching temperature, H2SO4 initial concentration and residual acid concentration of leaching solution were studied, leaching pulp potential changes in leaching process were investigated. Results indicate, residual acid concentration of leaching solution don't vary with leaching time or leaching temperature, and the H2SO4 consumption in acid leaching process account for about 66% of the initial H2SO4 amount; pulp potential decreases from 610 mV to 480 mV after leaching for 4 h, and have no more changes when vanadium leaching rate reaches balance.

Key words: Stone coal, Vanadium, Acidity, Electric potential