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Founded in 1987， Bimonthly
Supervisor：Jiangxi University Of Science And Technology
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Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 13 Issue 2
Apr.  2022
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ZHAO Aichun, HE Xin, ZHANG Ting'an. Extraction of Fe from sulfuric acid leaching solution of high-aluminum fly ash by P204[J]. Nonferrous Metals Science and Engineering, 2022, 13(2): 16-21. DOI: 10.13264/j.cnki.ysjskx.2022.02.003
Citation: ZHAO Aichun, HE Xin, ZHANG Ting'an. Extraction of Fe from sulfuric acid leaching solution of high-aluminum fly ash by P204[J]. Nonferrous Metals Science and Engineering, 2022, 13(2): 16-21. DOI: 10.13264/j.cnki.ysjskx.2022.02.003
shu

Extraction of Fe from sulfuric acid leaching solution of high-aluminum fly ash by P204

  • 1.

    School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China

  • 2.

    Key Laboratory for Ecological Metallurgy of Multimetallic Mineral, Ministry of Education, Northeastern University, Shenyang 110819, China

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  • Received Date: September 09, 2021
  • Revised Date: September 23, 2021
  • Available Online: May 09, 2022
    Graphical Abstract
    • Abstract
  • This paper researched the separation performance of Fe(Ⅲ) and Al(Ⅲ) from a high-aluminum CFA (coal fly ash) sulfuric acid leaching solution. When such a leaching solution (C(Al3+)=37.1 g/L, C(Fe3+)=5.1 g/L) was simulated, Fe(Ⅲ) and Al(Ⅲ) in the composition solution were extracted by using a P204+260# solvent oil extraction system. The effects of different parameters, such as the volume fraction of P204, temperature, reaction time, pH of the initial aqueous phase and organic-to-aqueous phase ratio V(O): V(A), on the extraction of Fe(Ⅲ) with P204 were investigated. Experimental results showed that when the CFA acid leaching solution was 40% P204 and 60% 260# kerosene at pH of 0.4 at 60 ℃ and the phase ratio of V(O): V(A)=1:1 contacted for 20 min, Fe(Ⅲ) extraction was 93.24% with 2.3% Al(Ⅲ) coextracted. The Fe-loaded organic phase was stripped with 5 mol/L HCl at an organic-to-aqueous phase ratio of 1:3, and almost 92.96% of the Fe(Ⅲ) was recovered from the Fe-loaded organic phase contact for 10 min.
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