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Recovery of Manganese from Scrap Batteries of Mobile Phones

  • Deblina DuttaEmail author
  • Rekha Panda
  • Manis Kumar Jha
  • Sudha Goel
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Present work is focused on the recovery of Mn as a value added product from the leach liquor of scrap lithium-ion batteries (LIBs) of mobile phones by the method of precipitation. The LIBs were crushed and beneficiated by wet scrubbing method to separate cathodic material, plastic and metallic parts. The cathodic material was found to contain 11.3% Mn, 10% Co, 2.4% Cu and 2.4% Li. The cathodic material was processed for leaching under the optimized condition developed by our group at CSIR-NML. Solvent extraction method was used to extract acid using organic extractant Tris(2-ethylhexyl)amine (TEHA) in order to reduce the consumption of alkali required during precipitation studies. The acid free leach liquor was subjected to purification for removal of Fe, Li, Cu and Co as precipitate at different pH. Systematic precipitation studies were carried in batch and continuous mode to recover Mn as Mn(OH)2 at pH ~10 which was further roasted at 450 °C for 4 h to get pure Mn3O4.

Keywords

Lithium-ion batteries Mobile phones Precipitation studies Manganese precipitate 

Notes

Acknowledgements

Authors acknowledge the joint venture of IIT-Kharagpur and CSIR-NML, Jamshedpur for the e-waste recycling project and for giving the permission to publish this article. One of the authors Ms. Deblina Dutta, Senior Research Fellow is thankful to IIT-Kharagpur for financial support.

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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  • Deblina Dutta
    • 1
    • 2
    Email author
  • Rekha Panda
    • 2
  • Manis Kumar Jha
    • 2
  • Sudha Goel
    • 1
  1. 1.School of Environmental Science & EngineeringIndian Institute of Technology KharagpurKharagpurIndia
  2. 2.Metal Extraction and Recycling DivisionCSIR-National Metallurgical LaboratoryJamshedpurIndia

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