Synergetic metal recycling method for nickel and cobalt containing waste batteries and copper containing electronic waste

Abstract

The invention provides a synergetic metal recycling method for nickel and cobalt containing waste batteries and copper containing electronic waste. The preliminarily smashed and metal element enriched waste batteries and the copper containing electronic waste are mixed, and a slag former and a reducing agent in a certain ratio are blended for an oxidative reducing reaction; relatively active metal iron, aluminum and the like in the reaction process form oxide to enter an upper layer slag phase; metal cobalt and nickel enter copper liquid on the bottom layer, and therefore the metal phase and a slag phase are separated, and metal containing copper, cobalt and nickel is obtained; and copper, cobalt, nickel and other high-purity metal are recycled through electrorefining. The method is short in flow, high-temperature thermometallurgy is adopted for synergetically recycling the valuable metal in the batteries and the electronic waste, and the problems that traditional waste battery wet recycling efficiency is low, the environment is polluted, a large amount of lixivium needs to be used, and a large amount of acid and alkaline is consumed are avoided; and an efficient novel recycling way is provided for waste ternary battery and electronic waste resource recycling, and good industrial application prospects are achieved.

Description

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AI Technical Summary

Benefits of technology

This technology uses pyrotronucleation (pyrotechnology) techniques that produce pure or very few types of valuable materials from various sources such as spent battery residue, electronics scrapings containing these substances, etc., without requiring expensive methods like acid digestion or solvent extraction processes. Additionally, this technique allows for efficient production of highly purified metals by concentrating certain important components within specific areas inside the material before processing them outside. Overall, this new approach provides technical benefits over existing technologies including lower costs associated with traditional mineral separation procedures and improved environmental impact compared to current options.

Problems solved by technology

This patented technical problem addressed in this patents relates to finding ways to efficiently reuse used (waste) electric vehicle batteries without causing negative impacts upon their owners' health and wellness issues during disposal. Current solutions involve either incinerating them after use or utilizing different types of chemical agents like hydrogen peroxides/acids. However these approaches may result in harmful emissions due to combustible gases released when they break down intoxic gas. Additionally, existing cleanup procedures require expensive equipment and consume significant amounts of water resources.

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