Glucose oxidase-based biocatalytic acid-leaching process for recovering valuable metals from spent lithium-ion batteries

2020 ◽  
Vol 114 ◽  
pp. 166-173
Author(s):  
Ersha Fan ◽  
Pingchuan Shi ◽  
Xiaoxiao Zhang ◽  
Jiao Lin ◽  
Feng Wu ◽  
...  
2018 ◽  
Vol 775 ◽  
pp. 419-426 ◽  
Author(s):  
Wei Sheng Chen ◽  
Hsing Jung Ho

The paper concerns an approach about using environmental technology and hydrometallurgical process to the recovery of valuable metal from waste cathode material produced during the manufacture of lithium-ion batteries. It is noteworthy that the content of nickel, manganese and cobalt from cathode material are in the extraordinary large proportion. In the acid leaching step, the essential effects of H2SO4 concentration, H2O2 concentration, leaching time, liquid-solid mass ratio and reaction temperature with the leaching percentage were investigated. The cathode material was leached with 2M H2SO4 and 10 vol.% H2O2 at 70 °C and 300 rpm using a liquid-solid mass ratio of 30 ml/g and the leaching efficiency of cobalt was 98.5%, lithium was 99.8%, nickel was 98.6% and manganese was 98.6% under optimum conditions. Kinetic study demonstrates the activation energies for those analyzed metals with Arrhenius equation and manifests the data with hybrid reaction control mechanism. The process was proved from activation energies ranged from 27.79 to 47.25 kJ/mol. Finally, the valuable metals will be leached in sulfuric acid effectively.


2014 ◽  
Vol 262 ◽  
pp. 380-385 ◽  
Author(s):  
Li Li ◽  
Longyu Zhai ◽  
Xiaoxiao Zhang ◽  
Jun Lu ◽  
Renjie Chen ◽  
...  

2019 ◽  
Vol 6 (9) ◽  
pp. 191061 ◽  
Author(s):  
Borui Liu ◽  
Qing Huang ◽  
Yuefeng Su ◽  
Liuye Sun ◽  
Tong Wu ◽  
...  

Environmentally friendly acid-leaching processes with three organic acids (maleic, glycolic and acetoacetic) were developed to recover valuable metals from the cathodic material of spent lithium-ion batteries (LiCoO 2 ). The leaching efficiencies of Li and Co by the maleic acid were 99.58% and 98.77%, respectively. The leaching efficiencies of Li and Co by the glycolic acid were 98.54% and 97.83%, while those by the acetoacetic acid were 98.62% and 97.99%, respectively. The optimal acid concentration for the maleic acid-, glycolic acid- and acetoacetic acid-leaching processes were 1, 2 and 1.5 mol l –1 , respectively, while their optimal H 2 O 2 concentrations were 1.5, 2 and 1.5 vol%, respectively. The optimal solid/liquid ratio, temperature and reaction time for the leaching process of the three organic acids was the same (10 g l −1 , 70°C, 60 min). The thermodynamic formation energy of the leaching products and the Gibbs free energy of the leaching reactions were calculated, and the kinetic study showed that the leaching processes fit well with the shrinking-core model. Based on the comparison in the leaching parameters, the efficacy and availability of the three acids is as follows: maleic acid > acetoacetic acid > glycolic acid.


2021 ◽  
Vol 92 (11) ◽  
Author(s):  
Mukaddas Fazilova ◽  
Shodlik Khasanov ◽  
Umarbek Alimov ◽  
Dilshod Ibragimov ◽  
Saidjon Sadullaev

2021 ◽  
Author(s):  
Jialiang Zhang ◽  
Guoqiang Liang ◽  
Cheng Yang ◽  
Juntao Hu ◽  
Yongqiang Chen ◽  
...  

Inspired by the process of "metallurgy first and then beneficiation" for disposing low-grade and complex mineral resources, we proposed a breakthrough method to recover valuable metals from spent entire lithium-ion...


2021 ◽  
Vol 9 (5) ◽  
pp. 2271-2279
Author(s):  
Ping Xu ◽  
Chunwei Liu ◽  
Xihua Zhang ◽  
Xiaohong Zheng ◽  
Weiguang Lv ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document