WO2023010973A1 - 一种从废旧磷酸铁锂材料回收锂的方法 - Google Patents
一种从废旧磷酸铁锂材料回收锂的方法 Download PDFInfo
- Publication number
- WO2023010973A1 WO2023010973A1 PCT/CN2022/095684 CN2022095684W WO2023010973A1 WO 2023010973 A1 WO2023010973 A1 WO 2023010973A1 CN 2022095684 W CN2022095684 W CN 2022095684W WO 2023010973 A1 WO2023010973 A1 WO 2023010973A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lithium
- iron phosphate
- sulfuric acid
- slurry
- waste
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 112
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 41
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 28
- 239000002699 waste material Substances 0.000 title claims abstract description 27
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 52
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims abstract description 15
- 229910052808 lithium carbonate Inorganic materials 0.000 claims abstract description 15
- 239000000706 filtrate Substances 0.000 claims abstract description 14
- 230000033116 oxidation-reduction process Effects 0.000 claims abstract description 12
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 12
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 8
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 14
- -1 hydrogen ions Chemical class 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 8
- 238000001914 filtration Methods 0.000 abstract description 7
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Inorganic materials [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 description 9
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 5
- 229910000398 iron phosphate Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000005955 Ferric phosphate Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229940032958 ferric phosphate Drugs 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/10—Obtaining alkali metals
- C22B26/12—Obtaining lithium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/08—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
-
- 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
Definitions
- the invention relates to the recovery of lithium battery materials, in particular to a method for recovering lithium from waste lithium iron phosphate materials.
- lithium iron phosphate is currently the most widely used lithium ion battery material. After the second cycle, its battery capacity gradually decreases and is eventually scrapped, resulting in waste lithium iron phosphate battery materials. If a large number of waste lithium iron phosphate battery materials are not effectively recycled, it will cause a large amount of accumulation, pollute the environment and waste precious lithium resources. Therefore, the recovery of metal elements in waste lithium iron phosphate batteries, especially the recovery of lithium elements, has certain environmental significance and high economic value.
- the purpose of the present invention is to overcome the shortcomings of the prior art and provide a method for recovering lithium from waste lithium iron phosphate materials.
- the technical solution adopted by the present invention is: a method for reclaiming lithium from waste lithium iron phosphate materials, comprising the following steps:
- step S1 water is added to the waste lithium iron phosphate material to make a slurry, the pH of the slurry is controlled to be 0.5-2.0, and the oxidation-reduction potential of the slurry is controlled to be 0.05-1.2V, so that an aluminum-containing solution and aluminium-removed solution can be obtained.
- the oxidation-reduction potential is 0.2-0.5V.
- the aluminum removal effect under this potential is better.
- the oxidation-reduction potential is controlled by adding sodium chlorate and/or hydrogen peroxide.
- the sodium chlorate and/or hydrogen peroxide can be added by continuous feeding.
- the pH is controlled by adding sulfuric acid solution and/or hydrochloric acid solution.
- the sulfuric acid solution and/or the hydrochloric acid solution can be added by means of continuous feeding.
- the mass concentration of the sulfuric acid is 10%-98%. More preferably, in S2, the mass concentration of the sulfuric acid is 50%-98%. At this concentration, sulfuric acid can react faster and save energy.
- the sulfuric acid is added in an amount such that the molar amount of hydrogen ions is 1.0 to 1.5 times that of lithium.
- the heating time is 1-5 hours.
- the heating temperature is 150-250°C. Reaction at this temperature can be more energy efficient while maintaining better reaction efficiency.
- the pH is adjusted by adding lithium carbonate and/or sodium carbonate.
- the beneficial effect of the present invention is that: the present invention provides a method of the present invention that is easy to industrialize, simple to operate, and low in cost, and the recovery efficiency of lithium can be high through the method of the present invention, and the recovery rate can reach more than 99%, and The lithium carbonate obtained was battery grade.
- a kind of embodiment of the method for reclaiming lithium from waste lithium iron phosphate material described in the present invention comprises the following steps:
- the amount of sulfuric acid added is to make the molar weight of hydrogen ions be 1.3 times the molar weight of lithium, and heat in the air atmosphere, and the heating temperature is 250 ° C. , the heating time is 2h, and the material B is obtained;
- the method described in this example can obtain a lithium yield of 99.9%, and the calculation formula of the lithium yield is: the amount of lithium substances in the material C/the amount of lithium substances in the waste lithium iron phosphate material ⁇ 100 %.
- a kind of embodiment of the method for reclaiming lithium from waste lithium iron phosphate material described in the present invention comprises the following steps:
- the sulfuric acid is added in an amount such that the molar weight of hydrogen ions is 1.0 times the molar weight of lithium, and heated in an air atmosphere, and the heating temperature is 100 ° C. , heating time is 5h, obtains material B;
- the method described in this embodiment can obtain a lithium yield of 99.0%, and the calculation formula of the lithium yield is: the amount of lithium substances in the material C/the amount of lithium substances in the waste lithium iron phosphate material ⁇ 100 %.
- a kind of embodiment of the method for reclaiming lithium from waste lithium iron phosphate material described in the present invention comprises the following steps:
- the sulfuric acid is added in an amount such that the molar weight of hydrogen ions is 1.5 times the molar weight of lithium, and heated in an air atmosphere, and the heating temperature is 400 ° C. , heating time is 3h, obtains material B;
- the method described in this example can obtain a lithium yield of 99.3%, and the calculation formula of the lithium yield is: the amount of lithium substances in the material C/the amount of lithium substances in the waste lithium iron phosphate material ⁇ 100 %.
- a kind of embodiment of the method for reclaiming lithium from waste lithium iron phosphate material described in the present invention comprises the following steps:
- the amount of sulfuric acid added is to make the molar weight of hydrogen ions be 1.5 times the molar weight of lithium, and heat in an air atmosphere, and the heating temperature is 150°C , the heating time is 1h, and the material B is obtained;
- the method described in this example can obtain a lithium yield of 99.8%, and the calculation formula of the lithium yield is: the amount of lithium substances in the material C/the amount of lithium substances in the waste lithium iron phosphate material ⁇ 100 %.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (10)
- 一种从废旧磷酸铁锂材料回收锂的方法,其特征在于,包括以下步骤:S1.将废旧磷酸铁锂材料中加水制成浆料,控制浆料的pH=0.5~2.0,控制浆料的氧化还原电位为0.05~1.2V,过滤取滤渣,得物料A;S2.在所述物料A中加入硫酸,在空气或者氧气的氛围中加热,所述加热的温度为100~400℃,得物料B;S3.在所述物料B中加入水,搅拌,过滤取滤液,得物料C;S4.控制所述物料C的pH=9~11,过滤取滤液,得物料D;S5.使所述物料D通过离子交换树脂,得物料E;S6.在所述物料E中加到碳酸钠溶液中,取反应后固体,得碳酸锂。
- 如权利要求1所述方法,其特征在于,S1中,所述氧化还原电位为0.2~0.5V。
- 如权利要求1所述方法,其特征在于,S1中,所述氧化还原电位通过加入氯酸钠和/或双氧水控制。
- 如权利要求1所述方法,其特征在于,S1中,所述pH通过加入硫酸溶液或盐酸溶液控制。
- 如权利要求1所述方法,其特征在于,S2中,所述硫酸的质量浓度为10%~98%。
- 如权利要求1所述方法,其特征在于,S2中,所述硫酸的质量浓度为50%~98%。
- 如权利要求1所述方法,其特征在于,S2中,所述硫酸的加入量为:使氢离子摩尔量是锂的摩尔量的1.0~1.5倍。
- 如权利要求1所述方法,其特征在于,S2中,所述加热的时间为1~5h。
- 如权利要求1所述方法,其特征在于,S2中,所述加热的温度为150~250℃。
- 如权利要求1所述方法,其特征在于,S4中,所述pH通过加入碳酸锂和/或碳酸钠调节。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MA61236A MA61236A1 (fr) | 2021-08-03 | 2022-05-27 | Procédé pour la récupération de lithium à partir de déchets de lithium fer phosphate |
DE112022000216.6T DE112022000216T5 (de) | 2021-08-03 | 2022-05-27 | Verfahren zur Rückgewinnung von Lithium aus Lithiumeisenphosphat(LFP)-Abfallmaterial |
HU2300208A HUP2300208A2 (hu) | 2021-08-03 | 2022-05-27 | Eljárás lítium visszanyerésére lítium-vasfoszfát anyagot tartalmazó hulladékból |
ES202390059A ES2971817A2 (es) | 2021-08-03 | 2022-05-27 | Método para recuperar litio a partir de material de fosfato de hierro y litio (LFP) de desecho |
MX2023014488A MX2023014488A (es) | 2021-08-03 | 2022-05-27 | Metodo para recuperar litio a partir de material de fosfato de hierro y litio (lfp) de desecho. |
GB2318427.8A GB2621100A (en) | 2021-08-03 | 2022-05-27 | Method for recovering lithium from waste lithium iron phosphate material |
US18/212,713 US20230332273A1 (en) | 2021-08-03 | 2023-06-21 | Method for recovering lithium from waste lithium iron phosphate (lfp) material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110885754.X | 2021-08-03 | ||
CN202110885754.XA CN113603119B (zh) | 2021-08-03 | 2021-08-03 | 一种从废旧磷酸铁锂材料回收锂的方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/212,713 Continuation US20230332273A1 (en) | 2021-08-03 | 2023-06-21 | Method for recovering lithium from waste lithium iron phosphate (lfp) material |
Publications (1)
Publication Number | Publication Date |
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WO2023010973A1 true WO2023010973A1 (zh) | 2023-02-09 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2022/095684 WO2023010973A1 (zh) | 2021-08-03 | 2022-05-27 | 一种从废旧磷酸铁锂材料回收锂的方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US20230332273A1 (zh) |
CN (1) | CN113603119B (zh) |
DE (1) | DE112022000216T5 (zh) |
ES (1) | ES2971817A2 (zh) |
GB (1) | GB2621100A (zh) |
HU (1) | HUP2300208A2 (zh) |
MA (1) | MA61236A1 (zh) |
MX (1) | MX2023014488A (zh) |
WO (1) | WO2023010973A1 (zh) |
Families Citing this family (2)
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CN113603119B (zh) * | 2021-08-03 | 2022-11-15 | 广东邦普循环科技有限公司 | 一种从废旧磷酸铁锂材料回收锂的方法 |
CN116514146A (zh) * | 2022-09-02 | 2023-08-01 | 厦门稀土材料研究所 | 一种从废弃磷酸铁锂直接回收电池级碳酸锂的方法 |
Citations (7)
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CN108456788A (zh) * | 2017-12-11 | 2018-08-28 | 中国科学院过程工程研究所 | 一种高温固相法选择性回收废旧磷酸铁锂正极材料中锂的方法 |
CN109554545A (zh) * | 2018-09-29 | 2019-04-02 | 广东邦普循环科技有限公司 | 一种从磷酸铁锂废料选择性提锂的方法 |
CN110331288A (zh) * | 2019-06-28 | 2019-10-15 | 湖南邦普循环科技有限公司 | 一种废旧磷酸铁锂材料选择性提锂的方法 |
CN112331949A (zh) * | 2020-11-12 | 2021-02-05 | 郑州中科新兴产业技术研究院 | 从废旧磷酸铁锂电池中回收磷、铁和锂的方法 |
CN112441572A (zh) * | 2019-08-27 | 2021-03-05 | 比亚迪股份有限公司 | 一种废旧磷酸铁锂正极材料的回收方法 |
CN112811404A (zh) * | 2020-12-31 | 2021-05-18 | 九江天赐高新材料有限公司 | 废旧磷酸铁锂正极粉料的回收利用方法 |
CN113603119A (zh) * | 2021-08-03 | 2021-11-05 | 广东邦普循环科技有限公司 | 一种从废旧磷酸铁锂材料回收锂的方法 |
Family Cites Families (6)
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WO2012072619A1 (en) * | 2010-11-29 | 2012-06-07 | Umicore | Process for the recovery of lithium and iron from lfp batteries |
CN106129511B (zh) * | 2016-06-27 | 2018-12-07 | 北京科技大学 | 一种从废旧锂离子电池材料中综合回收有价金属的方法 |
CN106910959B (zh) * | 2017-05-04 | 2020-02-21 | 北京科技大学 | 一种从磷酸铁锂废料中选择性回收锂的方法 |
CN109179359A (zh) * | 2018-11-27 | 2019-01-11 | 成都绿锂环保科技有限公司 | 一种从磷酸铁锂废料中提取锂和磷酸铁的方法 |
CN110983050B (zh) * | 2019-12-16 | 2021-08-10 | 山东理工大学 | 从废旧锂离子电池正极片中回收高纯锂的方法 |
CN112093785B (zh) * | 2020-09-08 | 2022-02-22 | 北京科技大学 | 磷酸铁锂正极废料锂的高效回收和电池用磷酸铁制备方法 |
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2021
- 2021-08-03 CN CN202110885754.XA patent/CN113603119B/zh active Active
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2022
- 2022-05-27 ES ES202390059A patent/ES2971817A2/es active Pending
- 2022-05-27 WO PCT/CN2022/095684 patent/WO2023010973A1/zh active Application Filing
- 2022-05-27 MX MX2023014488A patent/MX2023014488A/es unknown
- 2022-05-27 MA MA61236A patent/MA61236A1/fr unknown
- 2022-05-27 HU HU2300208A patent/HUP2300208A2/hu unknown
- 2022-05-27 DE DE112022000216.6T patent/DE112022000216T5/de active Pending
- 2022-05-27 GB GB2318427.8A patent/GB2621100A/en active Pending
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DE112022000216T5 (de) | 2023-08-24 |
GB202318427D0 (en) | 2024-01-17 |
HUP2300208A2 (hu) | 2023-10-28 |
MX2023014488A (es) | 2024-03-14 |
ES2971817A2 (es) | 2024-06-07 |
CN113603119B (zh) | 2022-11-15 |
GB2621100A (en) | 2024-01-31 |
MA61236A1 (fr) | 2023-08-31 |
CN113603119A (zh) | 2021-11-05 |
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