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P204萃取硫酸体系中V(IV)的性能研究

冯雪茹 吕国志 张廷安 赵秋月

冯雪茹, 吕国志, 张廷安, 赵秋月. P204萃取硫酸体系中V(IV)的性能研究[J]. 钢铁钒钛, 2022, 43(6): 1-6. doi: 10.7513/j.issn.1004-7638.2022.06.001
引用本文: 冯雪茹, 吕国志, 张廷安, 赵秋月. P204萃取硫酸体系中V(IV)的性能研究[J]. 钢铁钒钛, 2022, 43(6): 1-6. doi: 10.7513/j.issn.1004-7638.2022.06.001
Feng Xueru, Lv Guozhi, Zhang Ting’an, Zhao Qiuyue. Study on the extraction performance of V(IV) by P204 in sulfuric acid system[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(6): 1-6. doi: 10.7513/j.issn.1004-7638.2022.06.001
Citation: Feng Xueru, Lv Guozhi, Zhang Ting’an, Zhao Qiuyue. Study on the extraction performance of V(IV) by P204 in sulfuric acid system[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(6): 1-6. doi: 10.7513/j.issn.1004-7638.2022.06.001

P204萃取硫酸体系中V(IV)的性能研究

doi: 10.7513/j.issn.1004-7638.2022.06.001
基金项目: 国家863计划资助项目(2012AA062303);地质调查项目(DD20189501)。
详细信息
    作者简介:

    冯雪茹,1990年出生,女,四川德阳人,硕士研究生,工程师,主要从事冶金及材料研究,E-mail: 517234837@qq.com

  • 中图分类号: TF841.3

Study on the extraction performance of V(IV) by P204 in sulfuric acid system

  • 摘要: 以钛白废酸无焙烧直接加压酸浸提钒新技术中得到的浸出液为研究对象。配制硫酸体系中的V(IV)溶液,进行萃取单因素试验以研究P204对V(IV)的萃取性能。通过考察水相初始pH值、萃取剂P204用量、萃取相比(O/A)、振荡时间等因素对萃取的影响,得到不同浓度V(IV)溶液的适宜萃取条件,并初步探究了萃取剂P204对V(IV)的萃取饱和容量和萃取机理。结果表明: 萃取物V(IV)溶液的浓度影响水相初始pH值和萃取剂P204用量的选择,但对振荡时间和萃取相比(O/A)无影响;P204对硫酸体系中V(IV)的萃取性能优良,萃取速度快,饱和容量大;对于1、10、30 g/L的V(IV)溶液,在适宜萃取条件下,单级萃取率分别为90.36%、90.27%、61.37%。
  • 图  1  水相初始pH值对不同浓度V(IV)萃取率的影响

    Figure  1.  Effect of initial pH of aqueous phase on the extraction rates of V(Ⅳ) with different concentrations

    图  2  P204的用量对不同浓度V(IV)萃取率的影响

    Figure  2.  Effect of the dosage of P204 on the extraction rates of V(Ⅳ) with different concentrations

    图  3  萃取相比对不同浓度V(IV)萃取率的影响

    Figure  3.  Effect of extraction ratio (O/A) on the extraction rates of V(IV) with different concentrations

    图  4  振荡时间对不同浓度V(IV)萃取率的影响

    Figure  4.  Effect of shaking time on the extraction rates of V(Ⅳ) with different concentrations

    图  5  萃取平衡等温线

    Figure  5.  Extraction equilibrium isotherms

    图  6  lg(H2A2)与lgD-2 pH的关系

    Figure  6.  Relationship between lg (H2A2) and lgD-2pH

    表  1  系列相比法测定结果

    Table  1.   Analysis results of series phases ratio method

    相比(O/A)有机相V(IV)浓度/(g·L−1)
    10∶10.89
    5∶11.75
    3∶12.85
    2∶14.07
    1∶17.66
    1∶213.24
    1∶315.66
    1∶516.37
    1∶1016.33
    下载: 导出CSV
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  • 收稿日期:  2022-09-12
  • 刊出日期:  2023-01-13

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