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Cheng W, Li J, Deng J, Li Y, Cheng F. Leaching Vanadium from the Spent Denitration Catalyst in the Sulfuric Acid/Oxalic Acid Combined Solvent. ACS OMEGA 2024; 9:9286-9294. [PMID: 38434804 PMCID: PMC10905738 DOI: 10.1021/acsomega.3c08452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/26/2024] [Accepted: 01/26/2024] [Indexed: 03/05/2024]
Abstract
Huge amounts of spent denitration catalysts are produced annually as waste from the flue gas denitration process, which will cause resource waste and environmental pollution. It is important to develop an efficient method for the recovery of metals from spent denitration catalysts. In this work, the leaching of vanadium (V) from the spent denitration catalyst by the sulfuric acid/oxalic acid combined solvent was investigated. Factors that influence the leaching rate of V have been studied. Results showed that the optimal leaching rate was 95.65% by 20 wt % sulfuric acid and 0.3 mol·L-1 oxalic acid with a liquid-to-solid ratio of 20 mL·g-1 at 140 °C for 7 h. For further study of the leaching process, the leaching mechanism of V was explored subsequently. Results indicated that sulfuric acid provided a strongly acidic environment, which was beneficial to transformation, complexation, and redox reactions of V in the mixed acid leaching system. Meanwhile, oxalic acid with excellent complexation and reducing-dissolving properties promoted the formation of stable water-soluble VO2+. The "complex effect" generated from the combined acids was greatly favored for leaching V from the spent denitration catalyst.
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Affiliation(s)
- Wenting Cheng
- Institute
of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China
| | - Jie Li
- Institute
of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China
| | - Jianhang Deng
- Shanghai
Shangde Experimental School Noble Academy, Shanghai 201315, China
| | - Yang Li
- Longking-Coalogix
Environmental Protection Technology (Shanghai) Co Ltd., Shanghai 200331, China
- Jiangsu
Longking-Coalogix Environmental Protection Technology Co., Ltd., Yancheng 224051, China
| | - Fangqin Cheng
- Institute
of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China
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Li P, Luo SH, Su F, Zhang L, Yan S, Lei X, Mu W, Wang Q, Zhang Y, Liu X, Hou P. Optimization of Synergistic Leaching of Valuable Metals from Spent Lithium-Ion Batteries by the Sulfuric Acid-Malonic Acid System Using Response Surface Methodology. ACS APPLIED MATERIALS & INTERFACES 2022; 14:11359-11374. [PMID: 35191662 DOI: 10.1021/acsami.1c23258] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A new environmentally friendly and economical recycling process for extracting metals from spent lithium-ion batteries (LIBs) using sulfuric acid and malonic acid as leaching agents is proposed. By applying Box-Behnken design (BBD) and response surface methodology (RSM) optimization techniques, the global optimal solution of the maximum leaching rate of metals in spent LIBs is realized. The results show that under the optimal conditions of 0.93 M H2SO4, 0.85 M malonic acid, and a liquid/solid ratio of 61 g·L-1, a temperature of 70 °C and 5 vol % of 30% H2O2, 99.79% Li, 99.46% Ni, 97.24% Co, and 96.88% Mn are recovered within 81 min. The error between the theoretical value and the actual value of the metal leaching rate predicted by the regression model is less than 1.0%. Additionally, the study of leaching kinetics reveals that the leaching process of Li, Ni, Co, and Mn in spent cathode materials was affected by the synergistic effect of interfacial mass transfer and solid product layer diffusion. Economic analysis reveals that evaluation index should be fully considered when formulating recovery processes for different metals. This process can reduce the environmental risks of heavy metal disposal and allow the reuse of metals recovered from spent LIBs.
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Affiliation(s)
- Pengwei Li
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao 066004, PR China
| | - Shao-Hua Luo
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, PR China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao 066004, PR China
- Qinhuangdao Laboratory of Resources Cleaner Conversion and Efficient Utilization, Qinhuangdao 066004, PR China
| | - Faxian Su
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao 066004, PR China
| | - Lin Zhang
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao 066004, PR China
| | - Shengxue Yan
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao 066004, PR China
| | - Xuefei Lei
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao 066004, PR China
- Qinhuangdao Laboratory of Resources Cleaner Conversion and Efficient Utilization, Qinhuangdao 066004, PR China
| | - Wenning Mu
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao 066004, PR China
- Qinhuangdao Laboratory of Resources Cleaner Conversion and Efficient Utilization, Qinhuangdao 066004, PR China
| | - Qing Wang
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao 066004, PR China
| | - Yahui Zhang
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao 066004, PR China
| | - Xin Liu
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinhuangdao 066004, PR China
| | - Pengqing Hou
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, PR China
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Zhang W, Li Q, Li R, Shen N, Li J, Shen J, Sun X, Han W. Enhanced sequestration of chelated Cr(III) from aqueous by Al-containing ferrihydrite: New expectation of overall removal of various heavy metal complexes. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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