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Leaching of Calcareous Bornite Ore in Ammoniacal Solution Containing Ammonium Persulfate

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Abstract

The leaching process of copper from calcareous bornite ore using ammonium persulfate as an oxidant in ammoniacal solution was investigated. The effects of stirring speed, temperature, initial concentration of ammonia and ammonium persulfate, and liquid-to-solid (L/S) ratio on the extraction percentage of copper from bornite ore were studied. The results show that the optimum leaching conditions for bornite ore with a maximum extraction of copper 88.9 pct are temperature 313.15 K (40 °C), reaction time 4 hours, stirring speed 600 r/min, L/S ratio 7/1 cm3/g, initial concentration of ammonia 2.0 mol/dm3, and ammonium persulfate 3.0 mol/dm3.

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Acknowledgments

The study was supported by the NSFC (Natural Science Fund Council, China, 51364009), HEFC (Hunan Education Fund Committee, China, 10C1095), JUFC (Jishou University Fund Committee, jsdxxcfxbskyxm 201205,2012JSUJGA18 and 2012KCB05) ,and CPKDHP (the Construct Program of the Key Discipline in Hunan Province, China, JSU071303).

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Authors and Affiliations

  1. College of Physics and Mechanical & Electrical Engineering, Jishou University, Jishou, P.R. China

    Zhi-xiong Liu (Assistant Professor)

  2. School of Chemistry and Chemical Engineering, Central South University, Changsha, P.R. China

    Zhou-lan Yin (Professor)

  3. College of Biology and Environmental Sciences, Jishou University, Jishou, P.R. China

    Yi-guang Chen (Professor) & Li-zhi Xiong (Assistant Professor)

Authors
  1. Zhi-xiong Liu
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  2. Zhou-lan Yin
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  3. Yi-guang Chen
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  4. Li-zhi Xiong
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Correspondence to Zhi-xiong Liu.

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Manuscript submitted October 28, 2013.

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Liu, Zx., Yin, Zl., Chen, Yg. et al. Leaching of Calcareous Bornite Ore in Ammoniacal Solution Containing Ammonium Persulfate. Metall Mater Trans B 45, 2027–2032 (2014). https://doi.org/10.1007/s11663-014-0139-3

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  • DOI: https://doi.org/10.1007/s11663-014-0139-3

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