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Battery reclaimed material metal recovery treatment method

A technology for battery recycling and recycling, which is applied in battery recycling, recycling technology, recycling by waste collectors, etc. It can solve the problems of difficult operation and complicated process, and achieve the effect of easy operation, low cost and simple process

Active Publication Date: 2022-02-08
GUANGDONG JIANA ENERGY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a metal recovery treatment method for battery recycled materials, aiming to solve the technical problems in the prior art that the process of removing copper, iron, aluminum and other metal elements in recycled materials is complicated and difficult to operate.

Method used

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  • Battery reclaimed material metal recovery treatment method

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Effect test

Embodiment 1

[0049] Embodiment 1 of the present invention provides a metal recovery treatment method for battery reclaimed materials, comprising the following steps:

[0050] S01. Take 100g of experimental raw materials, add 400ml of pure water to adjust the slurry according to the liquid-solid ratio of 4:1, add 98% concentrated sulfuric acid to adjust the pH of the solution to 4.8, heat up to 85°C to 90°C after the mixture remains unchanged, keep it warm for 4 hours, and filter Finally, the first leaching solution and the first leaching residue are obtained, and the first leaching solution is used to remove copper ions by adding manganese powder with LIX984N to obtain the first mixed solution. The content of each element in the first mixed solution is shown in Table 2 below.

[0051] Table 2 Element content analysis results of the first mixed solution Unit: g / L

[0052] element Cu Fe Ca Mg Zn Cd Cr Pb Al Li first mixture 0.0005 0.0005 0.039 0.016 0.0...

Embodiment 2

[0061] Embodiment 2 of the present invention provides a method for metal recovery and treatment of battery recycled materials, comprising the following steps:

[0062] S01. Take 100g of experimental raw materials, add 400ml of pure water to adjust the slurry according to the liquid-solid ratio of 3:1, add 98% concentrated sulfuric acid to adjust the pH of the solution to 4.5, heat up to 85°C to 90°C after the mixture remains unchanged, keep warm for 3 hours, and filter Finally, the first leaching solution and the first leaching residue are obtained, and the first leaching solution is used to remove copper ions by adding manganese powder with LIX984N to obtain the first mixed solution. The content of each element in the first mixed solution is shown in Table 5 below.

[0063] Table 5 Element content analysis results of the first mixed solution Unit: g / L

[0064] element Cu Fe Ca Mg Zn Cd Cr Pb Al Li first mixture 0.001 0.0005 0.041 0.022 0...

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Abstract

The invention provides a battery reclaimed material metal recovery treatment method. The method comprises the following steps: S01, performing low-acid dissolution: dissolving a pretreated battery by adopting a low-concentration acid solution to obtain a first leachate and first leaching residues, and removing copper from the first leachate to obtain a first mixed solution; S02, performing high-acid dissolution: dissolving the first leaching residues with a high-concentration acid solution, adding a reducing agent for reduction to obtain a second leachate, and sequentially removing copper ions, iron ions and aluminum ions from the second leachate to obtain a second mixed solution; S03, performing mixed extraction: adjusting the pH value of a third mixed solution formed by mixing the two mixed solutions, removing zinc ions by extraction, and mixing a cobalt washing solution and a manganese washing solution to obtain a fourth mixed solution; and S04, performing precipitation and impurity removal: removing calcium and magnesium ions in the fourth mixed solution by adopting a precipitator to obtain qualified feed liquid. Compared with an extraction method, the method is simple in process, convenient to operate, low in cost and high in impurity removal rate.

Description

technical field [0001] The invention belongs to the technical field of battery recycling, and in particular relates to a metal recycling and processing method for battery recycling materials. Background technique [0002] After 2030, there will be a substantial increase in the scale of decommissioned batteries every year. Decommissioned batteries will initially come from electric buses, but after 2024 they will mainly come from electric passenger cars. But the advent of battery refurbishment technology has delayed the decommissioning of some recyclable batteries by about five years. The battery recycling market has great prospects, but in the current battery recycling treatment methods, many metal elements such as copper, iron, and aluminum in the recycled materials are removed by extraction. However, the extraction process is complicated, difficult to operate, and the removal rate of impurities is low. Contents of the invention [0003] The purpose of the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B3/38C22B47/00C22B23/00H01M10/54
CPCC22B7/007C22B23/043C22B47/00H01M10/54Y02W30/84
Inventor 张颖秦汝勇黄亚祥郑江峰崔俊
Owner GUANGDONG JIANA ENERGY TECH CO LTD