Method for leaching positive pole material of waste nickel-metal hydride battery
A technology of waste nickel-hydrogen batteries and positive electrode materials, which is applied in the direction of improving process efficiency, etc., can solve the problems of uneconomical industrial pure oxygen for personal use, troublesome storage, transportation and use of industrial pure oxygen, and small amount of industrial pure oxygen. Obvious economic and environmental benefits, lower pollution control costs, and improved metal leaching rates
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0012] Embodiment 1: 100g nickel-hydrogen waste battery positive electrode material (containing nickel 56.4%, cobalt 5.9%) is added in the stainless steel pressure reaction kettle that volume is 2L, adds the sulfuric acid 850ml of 1.5mol / L, adds (NH 4 ) 2 SO 3 65g (350ml solution), leached at 40℃~50℃ under closed stirring (stirring speed 80r / min) for 2.5h, after leaching, liquid-solid separation was carried out to obtain 1150ml leaching solution (excluding leaching slag washing water). The leaching rates of nickel and cobalt are 98.5% and 98.1% respectively (calculated based on nickel and cobalt entering the leaching solution and leaching slag washing solution).
Embodiment 2
[0013] Embodiment 2: 500g nickel metal hydride waste battery cathode material (containing nickel 56.4%, cobalt 5.9%) is added in the stainless steel pressure reaction kettle that volume is 5L, adds the sulfuric acid 2500ml of 3.0mol / L, adds (NH 4 ) 2 SO 3 360g (1700ml solution), leaching at 70℃~80℃ under closed stirring (stirring speed 70r / min) for 1.0h, after leaching, liquid-solid separation was carried out to obtain 4000ml leaching solution (excluding leaching slag washing water). The leaching rates of nickel and cobalt are 99.5% and 99.4% respectively (calculated based on nickel and cobalt entering the leaching solution and leaching slag washing solution).
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