Use of glucose as reductant to recover Co from spent lithium ions batteries

被引：164

作者：

Meng, Qi ^{[1
]}

Zhang, Yingjie ^{[1
]}

Dong, Peng ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Natl & Local Joint Engn Lab Lithium Ion Batteries, Key Lab Adv Battery Mat Yunnan Prov, Fac Met & Energy Engn, Kunming 650093, Peoples R China

来源：

WASTE MANAGEMENT | 2017年 / 64卷

关键词：

Spent lithium ions batteries; Leaching; Glucose; Phosphoric acid; Recovery of Co; VALUABLE METALS; ACTIVE MATERIAL; ORGANIC-ACIDS; LI; COBALT; REAGENTS;

D O I：

10.1016/j.wasman.2017.03.017

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A hydrometallurgical leaching process has been developed for recovery of Co and Li from cathode material (LiCoO2) collected from spent LIBs using a mix solution of glucose and phosphoric acid. The spent LiCoO2 before and after leaching process are analyzed by scanning electron microscopy. A leaching rate of about 98% Co and nearly 100% Li is presented with 1.5 mol/L phosphoric acid and 0.02 mol/L glucose at 80 degrees C in about 2 h. During leaching process, glucose was oxidized into monocarboxylic acid with reduction of Co(III) to Co(II). Co in solution was recovered as Co-oxalate after leaching process. Using glucose as reductant to dissolve LiCoO2 with chelating agent of phosphoric acid is achieved here. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：214 / 218

页数：5

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