Manganese dioxide recovery method by waste lithium ion battery powder selective lithium-extracting and electrolytic separation
A lithium-ion battery, manganese dioxide technology, applied in battery recycling, waste collector recycling, electrolysis process and other directions, can solve the problems of high production cost, low lithium recovery rate, difficult separation of lithium and sodium, etc., to achieve high-efficiency separation, quality excellent effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0026] Example 1
[0027] Such as figure 1 As shown, this embodiment provides a method for selectively extracting lithium from waste lithium-ion battery powder and electrolytic separation and recovery of manganese dioxide. The specific steps include the following:
[0028] (1) Curing and roasting: Using waste ternary lithium ion battery powder as raw material, its main composition is Li4.38%, Ni18.72%, Co7.87%, Mn11.23%, Cu0.63%, Fe0.25% , Al 0.92%. Weigh a certain amount of waste lithium ion battery powder and add it to it according to n H2SO4 :n Li =0.95 (molar ratio) slowly add concentrated sulfuric acid and stir evenly, then put it into an electric furnace and roast at 550°C for 2h, take out the calcine and cool it to room temperature and grind it evenly.
[0029] (2) Water leaching: Put the evenly ground calcine into the leaching reactor, add pure water and leaching for 3 hours under the conditions of liquid-solid ratio 4:1 and temperature 60℃, and then the slurry is filtere...
Example Embodiment
[0034] Example 2
[0035] Such as figure 1 As shown, this embodiment provides a method for selectively extracting lithium from waste lithium-ion battery powder and electrolytic separation and recovery of manganese dioxide. The specific steps include the following:
[0036] (1) Curing and roasting: use waste ternary and lithium cobalt oxide mixed battery powder as raw materials, control its main composition to be Li6.76%, Ni14.43%, Co42.56%, Mn10.86%, Cu0.42%, Fe0.15%, Al0.38%. Weigh a certain amount of waste lithium-ion battery mixed powder, and add it according to n H2SO4 :n Li =1.1 (molar ratio) slowly add concentrated sulfuric acid and stir evenly, then put it in an electric furnace for calcination at 650℃ for 2h, take out the calcine and cool it to room temperature and grind it evenly.
[0037] (2) Water leaching: Put the evenly ground calcine into the leaching reactor, add pure water and leaching for 5 hours under the conditions of liquid-to-solid ratio 3:1 and temperature 3...
Example Embodiment
[0042] Example 3
[0043] Such as figure 1 As shown, this embodiment provides a method for selectively extracting lithium from waste lithium-ion battery powder and electrolytic separation and recovery of manganese dioxide. The specific steps include the following:
[0044] (1) Curing and roasting: use waste ternary and lithium manganate mixed battery powder as raw materials, and control its main composition to be Li6.25%, Ni15.23%, Co12.56%, Mn49.79%, Cu0.53%, Fe0.12%, Al0.36%. Weigh a certain amount of waste lithium-ion battery mixed powder, and add it according to n H2SO4 :n Li =1.5 (molar ratio) Slowly add concentrated sulfuric acid and stir evenly, then put it into an electric furnace and roast it at 750°C for 4h, take out the calcine and cool it to room temperature and grind it evenly.
[0045] (2) Water leaching: Put the evenly ground calcine into the leaching reactor, add pure water and leaching for 2h under the conditions of liquid-to-solid ratio 8:1 and temperature 90℃, ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap