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

M. Angelica Sánchez, P. Victor Hugo Gutiérrez, R. Alejandro Cruz, A. Ricardo Gerardo Sánchez

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

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.

Original languageEnglish
Pages (from-to)316-324
Number of pages9
JournalRussian Journal of Non-Ferrous Metals
Volume57
Issue number4
DOIs
StatePublished - 1 Jul 2016
Externally publishedYes

Keywords

  • batteries
  • lead paste
  • pyrometallurgical
  • reduction
  • thermodynamic

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