CN117658234A - Method for recycling valuable metal from waste ternary lithium battery anode material - Google Patents
Method for recycling valuable metal from waste ternary lithium battery anode material Download PDFInfo
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- CN117658234A CN117658234A CN202311536518.2A CN202311536518A CN117658234A CN 117658234 A CN117658234 A CN 117658234A CN 202311536518 A CN202311536518 A CN 202311536518A CN 117658234 A CN117658234 A CN 117658234A
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- slag
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- lithium battery
- ternary lithium
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000002699 waste material Substances 0.000 title claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 26
- 239000002184 metal Substances 0.000 title claims abstract description 26
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 24
- 238000004064 recycling Methods 0.000 title claims abstract description 24
- 239000010405 anode material Substances 0.000 title claims abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 67
- 238000002386 leaching Methods 0.000 claims abstract description 63
- 238000001354 calcination Methods 0.000 claims abstract description 55
- 150000002739 metals Chemical class 0.000 claims abstract description 20
- 239000002243 precursor Substances 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 150000003839 salts Chemical class 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims abstract description 12
- 229910000389 calcium phosphate Inorganic materials 0.000 claims abstract description 12
- 235000019691 monocalcium phosphate Nutrition 0.000 claims abstract description 12
- 239000010926 waste battery Substances 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000007774 positive electrode material Substances 0.000 claims abstract description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 8
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 5
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- 239000001110 calcium chloride Substances 0.000 claims description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 18
- 238000000227 grinding Methods 0.000 abstract description 18
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 12
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 10
- 229910017052 cobalt Inorganic materials 0.000 abstract description 9
- 239000010941 cobalt Substances 0.000 abstract description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052759 nickel Inorganic materials 0.000 abstract description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052748 manganese Inorganic materials 0.000 abstract description 8
- 239000011572 manganese Substances 0.000 abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 239000011888 foil Substances 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 abstract description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Landscapes
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Secondary Cells (AREA)
Abstract
A method for recycling valuable metals from waste ternary lithium battery anode materials comprises the following steps: disassembling the waste batteries to separate out positive electrodes; adding the positive electrode into calcium superphosphate for acid leaching, and filtering to obtain leaching residues and leaching liquid; grinding and crushing the leaching slag, and mixing the leaching slag with molten salt for primary calcination to obtain primary calcined slag; grinding, crushing, washing and drying the primary calcined slag, and carrying out secondary calcination in an oxygen-containing atmosphere to obtain the anode precursor material. According to the invention, through combining a wet method and a fire method, firstly, lithium of a positive electrode material is leached and separated, and leaching slag containing nickel, cobalt, manganese and aluminum is obtained after filtration; and then mixing and calcining leaching residues and molten salt to reform a crystal structure, and finally removing conductive carbon and a recycling aluminum foil in an oxygen-containing atmosphere, so that the recycling utilization of the waste ternary lithium ion battery is realized, a new precursor is synthesized by nickel, cobalt and manganese, the precursor is formed into a porous shape by the conductive carbon, and the aluminum foil is coated on the precursor to play a role in protection.
Description
Technical Field
The invention relates to the field of lithium ion battery recovery, in particular to a method for recovering nickel, cobalt and manganese from a ternary lithium ion battery.
Background
The lithium ion power battery is a core component of the new energy vehicle, and the holding capacity of the lithium ion power battery is rapidly improved along with the rapid development of the new energy vehicle. Meanwhile, the recycling of the waste lithium ion batteries is also widely focused, particularly the recycling of the waste ternary lithium ion batteries is focused, so that the waste ternary lithium ion batteries are recycled into a development expressway.
At present, valuable metals of the waste lithium ion batteries are mainly recovered by a wet method and a fire method, the waste lithium ion batteries are subjected to acid leaching or alkaline leaching by the wet method, and then the single metal product is obtained through the processes of multistage extraction, precipitation, filtration and the like, but the waste water produced by the wet method recovery process is large in quantity and high in treatment cost, so that the application of the wet method process is limited; the pyrogenic process has low requirements on raw materials, can treat waste battery raw materials in a large scale to obtain a metal mixture or a metal alloy, but has high energy consumption and large waste gas production. The traditional fire method and the wet method are combined, namely the metal is reduced by fire method calcination, and then separated by the wet method, so that the production cost is high.
Disclosure of Invention
Based on the method, the invention aims to provide a method for efficiently recycling valuable metals in the waste ternary lithium battery positive plate, which realizes the efficient recycling of nickel, cobalt and manganese by combining a wet method and a fire method and fully utilizes the carbon conductive agent of the positive electrode material and the aluminum foil of the current collector.
A method for recycling valuable metals from waste ternary lithium battery anode materials comprises the following steps:
disassembling the waste batteries to separate out positive electrodes;
adding the positive electrode into calcium superphosphate for acid leaching, and filtering to obtain leaching residues and leaching liquid;
mixing the leaching slag with molten salt for primary calcination to obtain primary calcination slag;
and washing and drying the primary calcination slag, and performing secondary calcination to obtain the anode precursor material.
According to the invention, the waste batteries are disassembled to separate out the positive electrode, then, the positive electrode is leached by adopting a calcium superphosphate solution, and the calcium superphosphate is weakly acidic after being dissolved, so that lithium of a positive electrode material can be dissolved out, and other metals are not dissolved, thereby separating lithium and obtaining leaching slag containing nickel, cobalt and manganese; mixing and calcining leaching slag and molten salt to reform the leaching slag containing nickel, cobalt and manganese into a crystal structure; and then washing the primary calcination slag with water to remove redundant molten salt, and finally carrying out secondary calcination to remove impurities.
As a preferred embodiment, the molten salt comprises one or more of lithium chloride, lithium hydroxide, lithium carbonate, sodium chloride, calcium chloride or sodium carbonate, and at high temperature the molten salt dissolves the leaching residue to form an ionic melt, in which process a new crystal structure is formed.
As a preferable scheme, the mass ratio of the leaching residue to the molten salt is 1:1-3, if the consumption of molten salt is too low, the calcination time is longer, the consumption is too high, and the subsequent separation is difficult.
As a preferable scheme, the primary calcination temperature is 1000-1600 ℃ and the time is 2-10 hours, the calcination temperature is too low and the time is too short, the calcination effect cannot be achieved, and the nickel-cobalt-manganese metal cannot completely form crystals; the calcination temperature is too high, the calcination time is too long, and the calcination effect is not obviously improved.
As a preferable scheme, the secondary calcination temperature is 600-800 ℃ and the time is 2-4 hours, the calcination temperature is too low and the time is too short, the calcination effect cannot be achieved, the impurity removal is incomplete, the calcination temperature is too high and the time is too long, and the calcination effect is not obviously improved.
As a preferable scheme, the leaching slag and the primary calcined slag also need to be crushed and ground, and the calcination time can be reduced after grinding and crushing.
As a preferable scheme, the leaching slag and the primary calcined slag are crushed and ground to 30-60 meshes, the calcination time is required to be increased when the particle size is too large, and the grinding time is longer when the particle size is too small, so that the production is not facilitated.
As a preferable scheme, the primary calcination slag is subjected to secondary calcination in an oxygen-containing atmosphere, and residual carbon in the primary calcination slag is oxidized to generate carbon dioxide and release in the oxygen-containing atmosphere, so that the generated precursor material is fluffy and porous, and the specific surface area is increased; meanwhile, aluminum is oxidized into aluminum oxide to be coated on the surface of the precursor, so that direct contact with electrolyte is avoided, and the cycle performance of the material can be improved.
According to the invention, through combining a wet method and a fire method, firstly, lithium of a positive electrode material is leached and separated, and leaching slag containing nickel, cobalt, manganese and aluminum is obtained after filtration; the crystal structure of the lithium ion battery is gradually disordered in the circulation process, so that the circulation performance is reduced and finally scrapped, the leached slag is ground and crushed and mixed with molten salt to be calcined for the first time, and at the moment, the nickel, cobalt and manganese are calcined at a high temperature to form the crystal structure again in an ionic state, so that the primary calcined slag is obtained; finally, the primary calcined slag is crushed, ground, washed with water and filtered to remove redundant molten salt, secondary calcination is carried out, impurities are mainly removed in secondary calcination, conductive carbon in a positive electrode material, a current collector aluminum foil and the aluminum foil are also contained in leached slag, the conductive carbon is released in a carbon dioxide form in an oxygen-containing atmosphere, and the aluminum foil is coated on the surface of a precursor in an aluminum oxide form, so that the precursor material is loose and porous, and the surface coating of the aluminum oxide also has a protective effect. According to the invention, the resource utilization of the waste ternary lithium ion battery is realized through the combination of the wet method and the fire method, the nickel, cobalt and manganese are synthesized into a new precursor, the precursor is made into a porous shape by conductive carbon, and the aluminum foil is coated on the precursor to play a role in protection.
Detailed Description
The invention discloses a method for recycling valuable metals from a waste ternary lithium battery anode material, which comprises the following steps:
disassembling the waste batteries to separate out positive electrodes;
adding the positive electrode into calcium superphosphate for acid leaching, and filtering to obtain leaching residues and leaching liquid;
grinding and crushing the leaching slag to 30-60 meshes, and mixing the leaching slag with molten salt according to the mass ratio of 1:1-3, and performing primary calcination to obtain primary calcination slag, wherein the primary calcination temperature is 1000-1600 ℃ and the time is 2-10 hours, and the molten salt comprises one or more of lithium chloride, lithium hydroxide, lithium carbonate, sodium chloride, calcium chloride or sodium carbonate;
grinding and crushing the primary calcined slag to 30-60 meshes, washing and drying the primary calcined slag, and performing secondary calcination under an oxygen-containing atmosphere to obtain the anode precursor material, wherein the secondary calcination temperature is 600-800 ℃ and the time is 2-4 hours.
Example 1
The invention discloses a method for recycling valuable metals from a waste ternary lithium battery anode material, which comprises the following steps:
disassembling the waste batteries to separate out positive electrodes;
adding the positive electrode into calcium superphosphate for acid leaching, and filtering to obtain leaching residues and leaching liquid;
grinding and crushing the leaching slag to 40 meshes, and mixing the leaching slag with lithium chloride according to the mass ratio of 1:1, mixing, and calcining for 6 hours at 1400 ℃ to obtain primary calcined slag;
grinding and crushing the primary calcined slag to 40 meshes, washing with water, drying the primary calcined slag, and calcining for 4 hours at 600 ℃ in an oxygen-containing atmosphere to obtain the anode precursor material.
Example 2
The invention discloses a method for recycling valuable metals from a waste ternary lithium battery anode material, which comprises the following steps:
disassembling the waste batteries to separate out positive electrodes;
adding the positive electrode into calcium superphosphate for acid leaching, and filtering to obtain leaching residues and leaching liquid;
grinding and crushing the leaching slag to 60 meshes, and mixing the leaching slag with lithium hydroxide according to the mass ratio of 1:1.5, mixing, and calcining for 3 hours at 1400 ℃ to obtain primary calcined slag;
grinding and crushing the primary calcined slag to 60 meshes, washing with water, drying the primary calcined slag, and calcining for 4 hours at 800 ℃ in an oxygen-containing atmosphere to obtain the anode precursor material.
Example 3
The invention discloses a method for recycling valuable metals from a waste ternary lithium battery anode material, which comprises the following steps:
disassembling the waste batteries to separate out positive electrodes;
adding the positive electrode into calcium superphosphate for acid leaching, and filtering to obtain leaching residues and leaching liquid;
grinding and crushing the leaching slag to 50 meshes, and mixing the leaching slag with lithium carbonate according to the mass ratio of 1:3, mixing, and calcining for 2 hours at 1200 ℃ to obtain primary calcined slag;
grinding and crushing the primary calcined slag to 30 meshes, washing with water, drying the primary calcined slag, and calcining for 2 hours at 700 ℃ in an oxygen-containing atmosphere to obtain the anode precursor material.
Example 4
The invention discloses a method for recycling valuable metals from a waste ternary lithium battery anode material, which comprises the following steps:
disassembling the waste batteries to separate out positive electrodes;
adding the positive electrode into calcium superphosphate for acid leaching, and filtering to obtain leaching residues and leaching liquid;
grinding and crushing the leaching slag to 30 meshes, and mixing the leaching slag with molten salt according to the mass ratio of 1:2, mixing, and calcining for 10 hours at 1600 ℃ to obtain primary calcined slag, wherein the molten salt is sodium chloride and sodium carbonate according to the mass ratio of 1:1, a mixture of two or more of the above-mentioned materials;
grinding and crushing the primary calcined slag to 30 meshes, washing with water, drying the primary calcined slag, and calcining for 2 hours at 600 ℃ in an oxygen-containing atmosphere to obtain the anode precursor material.
Example 5
The invention discloses a method for recycling valuable metals from a waste ternary lithium battery anode material, which comprises the following steps:
disassembling the waste batteries to separate out positive electrodes;
adding the positive electrode into calcium superphosphate for acid leaching, and filtering to obtain leaching residues and leaching liquid;
grinding and crushing the leaching slag to 45 meshes, and mixing the leaching slag with calcium chloride according to the mass ratio of 1:1, mixing, and calcining for 6 hours at 1400 ℃ to obtain primary calcined slag;
grinding and crushing the primary calcined slag to 45 meshes, washing with water, drying the primary calcined slag, and calcining at 600 ℃ for 4 hours in an oxygen-containing atmosphere to obtain the anode precursor material.
Example 6
The invention discloses a method for recycling valuable metals from a waste ternary lithium battery anode material, which comprises the following steps:
disassembling the waste batteries to separate out positive electrodes;
adding the positive electrode into calcium superphosphate for acid leaching, and filtering to obtain leaching residues and leaching liquid;
grinding and crushing the leaching slag to 40 meshes, and mixing the leaching slag with lithium carbonate according to the mass ratio of 1:1, mixing, and calcining for 8 hours at 1000 ℃ to obtain primary calcined slag;
grinding and crushing the primary calcined slag to 50 meshes, washing with water, drying the primary calcined slag, and calcining for 4 hours at 750 ℃ in an oxygen-containing atmosphere to obtain the anode precursor material.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (8)
1. The method for recycling valuable metals from the waste ternary lithium battery anode material is characterized by comprising the following steps of:
disassembling the waste batteries to separate out positive electrodes;
adding the positive electrode into calcium superphosphate for acid leaching, and filtering to obtain leaching residues and leaching liquid;
mixing the leaching slag with molten salt for primary calcination to obtain primary calcination slag;
and washing and drying the primary calcination slag, and performing secondary calcination to obtain the anode precursor material.
2. The method for recovering valuable metals from waste ternary lithium battery positive electrode materials according to claim 1, wherein the molten salt comprises one or more of lithium chloride, lithium hydroxide, lithium carbonate, sodium chloride, calcium chloride or sodium carbonate.
3. The method for recycling valuable metals of the waste ternary lithium battery anode material according to claim 2, wherein the mass ratio of the leaching slag to the molten salt is 1:1-3.
4. The method for recycling valuable metals of the waste ternary lithium battery anode material according to claim 1, wherein the primary calcination temperature is 1000-1600 ℃ and the time is 2-10h.
5. The method for recycling valuable metals of the waste ternary lithium battery anode material according to claim 1, wherein the secondary calcination temperature is 600-800 ℃ and the time is 2-4h.
6. The method for recycling valuable metals of the waste ternary lithium battery anode material according to claim 1, wherein the leaching slag and the primary calcined slag are further crushed and ground.
7. The method for recycling valuable metals of the waste ternary lithium battery anode material, which is characterized in that leaching slag and primary calcined slag are crushed and ground to 30-60 meshes.
8. The method for recycling valuable metals of the waste ternary lithium battery anode material according to claim 1, wherein the primary calcination slag is subjected to secondary calcination in an oxygen-containing atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311536518.2A CN117658234A (en) | 2023-11-17 | 2023-11-17 | Method for recycling valuable metal from waste ternary lithium battery anode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311536518.2A CN117658234A (en) | 2023-11-17 | 2023-11-17 | Method for recycling valuable metal from waste ternary lithium battery anode material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117658234A true CN117658234A (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311536518.2A Pending CN117658234A (en) | 2023-11-17 | 2023-11-17 | Method for recycling valuable metal from waste ternary lithium battery anode material |
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| Country | Link |
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| CN (1) | CN117658234A (en) |
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2023
- 2023-11-17 CN CN202311536518.2A patent/CN117658234A/en active Pending
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