Acid baking of spent lithium ion batteries for selective recovery of major metals: A two-step process

Meshram P., Abhilash A., Pandey B. D., Mankhand T. R., DEVECİ H.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, cilt.43, ss.117-126, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.jiec.2016.07.056
  • Dergi Adı: JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.117-126
  • Anahtar Kelimeler: Spent LIBs, Baking, Sulfuric acid, Two-stage leaching, Reductant, HYDROMETALLURGICAL PROCESS, VALUABLE METALS, NITRIC-ACID, LI, SEPARATION, PRETREATMENT, EXTRACTION, ALUMINUM, GLUCOSE, WASTES
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

The present work focuses on a two-step process for selective dissolution of metals from cathode active material of spent LIBs. Cathode powder baked at 300 degrees C using H2SO4 being subjected to first stage leaching with water extracted 78.6% Li, 80.4% Co in 60 min at 75 degrees C and 25% pulp density; recovery of Ni and Mn being low (<15%). In second stage, reductive leaching was performed using an acid mixture (H2SO4 and HNO3) with glucose solubilizing 67% Ni, 64.8% Mn in 45 min. The overall recovery of the metals was 93.2% Li, 90.52% Co, 82.8% Ni, 77.7% Mn. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.