Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5756702 | Waste Management | 2017 | 5 Pages |
Abstract
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 °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.
Keywords
Related Topics
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Geotechnical Engineering and Engineering Geology
Authors
Qi Meng, Yingjie Zhang, Peng Dong,