WO2022213676A1 - 磷酸铁废料循环再生的方法及其应用 - Google Patents
磷酸铁废料循环再生的方法及其应用 Download PDFInfo
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- WO2022213676A1 WO2022213676A1 PCT/CN2021/142510 CN2021142510W WO2022213676A1 WO 2022213676 A1 WO2022213676 A1 WO 2022213676A1 CN 2021142510 W CN2021142510 W CN 2021142510W WO 2022213676 A1 WO2022213676 A1 WO 2022213676A1
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- iron phosphate
- iron
- phosphate
- recycling
- regenerating
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- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 title claims abstract description 133
- 229910000398 iron phosphate Inorganic materials 0.000 title claims abstract description 101
- 239000002699 waste material Substances 0.000 title claims abstract description 38
- 125000004122 cyclic group Chemical group 0.000 title claims abstract description 5
- 238000011069 regeneration method Methods 0.000 title abstract 2
- DPTATFGPDCLUTF-UHFFFAOYSA-N phosphanylidyneiron Chemical compound [Fe]#P DPTATFGPDCLUTF-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 40
- BMTOKWDUYJKSCN-UHFFFAOYSA-K iron(3+);phosphate;dihydrate Chemical compound O.O.[Fe+3].[O-]P([O-])([O-])=O BMTOKWDUYJKSCN-UHFFFAOYSA-K 0.000 claims abstract description 27
- 239000002244 precipitate Substances 0.000 claims abstract description 20
- 238000002360 preparation method Methods 0.000 claims abstract description 20
- 239000002253 acid Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 54
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 34
- 239000005955 Ferric phosphate Substances 0.000 claims description 32
- 229940032958 ferric phosphate Drugs 0.000 claims description 32
- 229910000399 iron(III) phosphate Inorganic materials 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 31
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 238000004064 recycling Methods 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 17
- 239000000706 filtrate Substances 0.000 claims description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 14
- -1 iron ions Chemical class 0.000 claims description 14
- 230000001172 regenerating effect Effects 0.000 claims description 13
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 13
- 238000001556 precipitation Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 5
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 5
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 235000017550 sodium carbonate Nutrition 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 2
- 239000011736 potassium bicarbonate Substances 0.000 claims description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 2
- 235000011118 potassium hydroxide Nutrition 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003513 alkali Substances 0.000 abstract description 4
- 239000000047 product Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 3
- 238000001000 micrograph Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000012065 filter cake Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229940085991 phosphate ion Drugs 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/37—Phosphates of heavy metals
- C01B25/375—Phosphates of heavy metals of iron
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/005—Preliminary treatment of scrap
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
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- C—CHEMISTRY; METALLURGY
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
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- 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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
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- 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
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Abstract
Description
Claims (10)
- 一种磷酸铁废料循环再生的方法,其特征在于,包括以下步骤:S1:将磷酸铁废料和酸液混合溶解,过滤,得到铁磷溶液;S2:取部分所述铁磷溶液,加入碱液调节pH,搅拌并加热保温反应,过滤,得到磷酸铁沉淀剂;S3:将所述磷酸铁沉淀剂洗涤后加入到余下的铁磷溶液中,搅拌并加热保温反应,得到二水磷酸铁沉淀,过滤,洗涤,留下部分二水磷酸铁沉淀作为以后批次反应的沉淀剂,其余二水磷酸铁沉淀经干燥、烧结,制得无水磷酸铁;S4:重复步骤S1和S3进行循环制备,其中,步骤S3中加入到铁磷溶液的磷酸铁沉淀剂是之前批次步骤S3中留下的二水磷酸铁沉淀。
- 根据权利要求1所述的磷酸铁废料循环再生的方法,其特征在于,所述磷酸铁废料包括磷酸铁边角料、磷酸铁锂提锂后的废料、磷酸铁锂极片回收提锂后铁磷渣或磷酸铁锂电池拆解提锂后的铁磷渣中的一种或多种。
- 根据权利要求1所述的磷酸铁废料循环再生的方法,其特征在于,步骤S1中,所述酸液包括盐酸、硫酸、硝酸或磷酸中的一种或多种;所述酸液中的酸根与铁离子的摩尔比为(1.1~1.5):1。
- 根据权利要求1所述的磷酸铁废料循环再生的方法,其特征在于,步骤S2中,所述过滤后的滤液加入到步骤S3余下的铁磷溶液中;步骤S3中,所述过滤后的滤液可用于步骤S1磷酸铁废料的溶解。
- 根据权利要求1所述的磷酸铁废料循环再生的方法,其特征在于,步骤S1中,所述混合溶解的过程为:边加酸液边搅拌,搅拌的速率为100~400r/min,搅拌的时间为3~5h。
- 根据权利要求1所述的磷酸铁废料循环再生的方法,其特征在于,步骤S2中,所述碱液包括氨水、氢氧化钠、氢氧化钾、碳酸钠、磷酸氢二铵、碳酸氢钠或碳酸氢钾中的一种或几种。
- 根据权利要求1所述的磷酸铁废料循环再生的方法,其特征在于,步骤S2中,所 述pH为0.5~2.5。
- 根据权利要求1所述的磷酸铁废料循环再生的方法,其特征在于,步骤S2和骤S3中,所述搅拌的速度为200~600rpm/min,所述加热的温度为80~100℃,所述保温反应的时间为2~8h。
- 根据权利要求1所述的磷酸铁废料循环再生的方法,其特征在于,步骤S3中,留下二水磷酸铁沉淀的质量占生成二水磷酸铁沉淀总质量的5~40%。
- 权利要求1~9任一项所述的磷酸铁废料循环再生的方法在制备磷酸铁锂电池中的应用。
Priority Applications (6)
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GB2315158.2A GB2620057A (en) | 2021-04-06 | 2021-12-29 | Iron phosphate waste cyclic regeneration method and application thereof |
ES202390110A ES2950678A2 (es) | 2021-04-06 | 2021-12-29 | Metodo para el reciclaje de desechos de fosfato de hierro y su uso |
MA61721A MA61721A1 (fr) | 2021-04-06 | 2021-12-29 | Procédé de régénération cyclique de déchets de phosphate de fer et application correspondante |
HU2200267A HUP2200267A2 (hu) | 2021-04-06 | 2021-12-29 | Eljárás vasfoszfát hulladékok újrahasznosítására és annak felhasználása |
DE112021006151.8T DE112021006151T5 (de) | 2021-04-06 | 2021-12-29 | Verfahren zum recycling von eisenphosphatabfall und anwendung davon |
US18/373,966 US20240021903A1 (en) | 2021-04-06 | 2023-09-28 | Method for recycling iron phosphate waste and use thereof |
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CN202110365978.8A CN113044824B (zh) | 2021-04-06 | 2021-04-06 | 磷酸铁废料循环再生的方法及其应用 |
CN202110365978.8 | 2021-04-06 |
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US18/373,966 Continuation US20240021903A1 (en) | 2021-04-06 | 2023-09-28 | Method for recycling iron phosphate waste and use thereof |
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CN (1) | CN113044824B (zh) |
DE (1) | DE112021006151T5 (zh) |
ES (1) | ES2950678A2 (zh) |
GB (1) | GB2620057A (zh) |
HU (1) | HUP2200267A2 (zh) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115650192A (zh) * | 2022-11-02 | 2023-01-31 | 四川顺应动力电池材料有限公司 | 一种红土镍矿高铁渣制备高纯磷酸铁的方法 |
CN115676790A (zh) * | 2022-10-28 | 2023-02-03 | 贵州川恒化工股份有限公司 | 一种高振实球形电池级磷酸铁的制备方法 |
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CN113044824B (zh) * | 2021-04-06 | 2023-04-11 | 广东邦普循环科技有限公司 | 磷酸铁废料循环再生的方法及其应用 |
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MA61721A1 (fr) | 2024-01-31 |
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DE112021006151T5 (de) | 2023-09-28 |
CN113044824B (zh) | 2023-04-11 |
CN113044824A (zh) | 2021-06-29 |
US20240021903A1 (en) | 2024-01-18 |
GB2620057A (en) | 2023-12-27 |
HUP2200267A2 (hu) | 2023-01-28 |
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