Method for reclaiming valuable metals from waste lithium batteries
A technology for waste lithium batteries and valuable metals, which is applied in the field of recycling valuable metals from waste lithium batteries, can solve problems such as waste of resources, potential safety hazards, and environmental pollution, and achieve high recycling efficiency, simple methods, and low recycling costs Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0018] The discharged waste lithium battery is mechanically pulverized, and calcined at a high temperature of 350°C-400°C to obtain a material containing cobalt, copper and aluminum, adding a 10% sodium hydroxide solution, reacting for 2 hours, filtering the lye, washing, Dried to obtain the material containing cobalt, copper, adding concentration to the material containing cobalt, copper is the sulfuric acid of 3.5 mol / L and 0.4 mol / L Na 2 the s 2 o 3, Stir to dissolve, adjust the pH value to 1.0, extract copper with an extractant containing 10% Acorga M5640, adjust the pH value of the solution after extracting copper to 5.0-5.5, and extract cobalt with an organic extractant containing 15% Cyanex272. Among them, dilute sulfuric acid is added to the filtered lye to adjust the pH to 8.5-9.0, aged and precipitated at 90-100° C. for 30-40 minutes, and filtered to obtain aluminum hydroxide crystals.
Embodiment 2
[0020] The discharged waste lithium battery is mechanically pulverized, and calcined at a high temperature of 350°C-400°C to obtain a material containing cobalt, copper and aluminum, adding a 10% sodium hydroxide solution, reacting for 2 hours, filtering the lye, washing, Dried to obtain the material containing cobalt and copper, adding concentration to the material containing cobalt and copper is 4.0mol / L sulfuric acid and 0.35mol / L Na 2 the s 2 o 3, Stir to dissolve, adjust the pH value to 1.0, extract copper with an extractant containing 15% Acorga M5640, adjust the pH value of the solution after extracting copper to 5.0-5.5, and extract cobalt with an organic extractant containing 120% Cyanex272. Among them, dilute sulfuric acid is added to the filtered lye to adjust the pH to 8.5-9.0, aged and precipitated at 90-100° C. for 30-40 minutes, and filtered to obtain aluminum hydroxide crystals.
Embodiment 3
[0022] The discharged waste lithium battery is mechanically crushed, and calcined at a high temperature of 350°C-400°C to obtain a material containing cobalt, copper and aluminum, adding a 15% sodium hydroxide solution, reacting for 2 hours, filtering the lye, washing, Dry to obtain the material containing cobalt and copper, and add the sulfuric acid and 0.4mol / L Na with a concentration of 4.0mol / L to the material containing cobalt and copper 2 the s 2 o 3, Stir to dissolve, adjust the pH value to 1.0, extract copper with an extractant containing 12% Acorga M5640, adjust the pH value of the solution after extracting copper to 5.0-5.5, and extract cobalt with an organic extractant containing 16% Cyanex272. Among them, dilute sulfuric acid is added to the filtered lye to adjust the pH to 8.5-9.0, aged and precipitated at 90-100° C. for 30-40 minutes, and filtered to obtain aluminum hydroxide crystals.
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com