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Russian Journal of Non-Ferrous Metals

, Volume 57, Issue 4, pp 316–324 | Cite as

Lead production from recycled paste of lead acid batteries with SiC-Na2CO3

  • Angelica Sánchez M.Email author
  • Victor Hugo Gutiérrez P.
  • Alejandro Cruz R.
  • Ricardo Gerardo Sánchez A.
Metallurgy of Nonferrous Metals

Abstract

A novel pyrometallurgical route was used to reduce the lead paste to obtain metallic lead with different additions of sodium carbonate at 850°C in a silicon carbide crucible. The process allows to obtain a high recovery of metallic lead in a single step and a slag constituted mainly by lead silicate. Products obtained were characterized by atomic absorption, X-ray powder diffraction and SEM-EDS techniques. A thermodynamic study was carried out with the software FactSage to determinate the compounds formation to the experimental conditions. High amounts of Na2CO3 and SiC promoted the formation of a lead sulfide compound which decreased the lead recovery.

Keywords

lead paste reduction pyrometallurgical batteries thermodynamic 

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Copyright information

© Allerton Press, Inc. 2016

Authors and Affiliations

  • Angelica Sánchez M.
    • 1
    Email author
  • Victor Hugo Gutiérrez P.
    • 2
  • Alejandro Cruz R.
    • 1
  • Ricardo Gerardo Sánchez A.
    • 1
  1. 1.Departamento de Ingeniería MetalúrgicaESIQIE—Instituto Politécnico Nacional. A.PostalMéxico
  2. 2.Ingeniería Metalúrgica, UPIIZ—Instituto Politécnico Nacional. Blvd. del Bote S/NCerro del Gato, Ejido la Escondida, Col. Ciudad AdministrativaZacatecasMéxico

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