Abstract
Solvent extraction is used for the selective extraction of manganese from an industrial leaching solution based on active material from spent lithium-ion batteries. As solvent 100 g L−1 di-(2-ethylhexyl) phosphoric acid (D2EHPA) diluted in Isopar L and an addition of 5 vol% tributyl phosphate is used. D2EHPA is well studied for the separation of manganese from cobalt and nickel but no data can be found on the influence of saponification. The influence of the saponification degree on the extraction yield and selectivity is investigated for two extraction stages. An overall extraction yield of 98.7% is achieved. 40% saponified D2EHPA for the first and 20% for the second stage at a phase ratio of 2.33 shows the best performance in terms of extraction yield and selectivity. The saponification influences the pH shift during the extraction from initial 2.8 to 3.4.
| Original language | English |
|---|---|
| Article number | 108552 |
| Number of pages | 8 |
| Journal | Chemical Engineering and Processing - Process Intensification |
| Volume | 171 |
| DOIs | |
| Publication status | Published - Jan 2022 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Fields of science
- 202029 Microwave engineering
- 203024 Thermodynamics
- 203038 Ventilation technology
- 204 Chemical Process Engineering
- 204002 Chemical reaction engineering
- 207106 Renewable energy
- 207111 Environmental engineering
- 210006 Nanotechnology
- 211203 Food processing engineering
- 211908 Energy research
- 105109 Geothermics
- 502059 Circular economy
- 509026 Digitalisation research
- 202034 Control engineering
- 203016 Measurement engineering
- 204003 Chemical process engineering
- 204008 Membrane technology
- 209006 Industrial biotechnology
- 104027 Computational chemistry
- 502058 Digital transformation
JKU Focus areas
- Sustainable Development: Responsible Technologies and Management
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