Recovery of Valuable Metals from Spent Lithium-Ion Batteries by Complexation-Assisted Ammonia Leaching from Reductive Roasting Residue

Autor: Fanyun Su, Xiangyang Zhou, Xiaojian Liu, Juan Yang, Jingjing Tang, Wan Yang, Zhenxiao Li, Hui Wang, Yaguang Zhang, Yayun Ma
Rok vydání: 2022
Předmět:
Zdroj: SSRN Electronic Journal.
ISSN: 1556-5068
DOI: 10.2139/ssrn.4196427
Popis: Recycling valuable metals in spent LIBs is not only in line with the purpose of resource recycling but also an important measure for environmental protection. In this article, a process using biomass reduction roasting followed by a unique complexation-assisted ammonia leaching is proposed. Using waste areca powder (WAP) as a biomass reducing agent, the roasted residue is leached in an aqueous solution for the carbonate. The leaching efficiencies of Ni, Co, and Mn reach over 99% under ammonia leaching conditions of 1.5 M ammonium citrate (AC), 3 M ethylenediamine (EDA). The kinetics of ammonia leaching indicates the activation energies of Ni, Co, and Mn are 51.8 kJ mol
Databáze: OpenAIRE