CN111370219B - 一种钕铁硼废旧磁钢全循环回收利用生产新永磁体的制备工艺 - Google Patents
一种钕铁硼废旧磁钢全循环回收利用生产新永磁体的制备工艺 Download PDFInfo
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- CN111370219B CN111370219B CN202010319767.6A CN202010319767A CN111370219B CN 111370219 B CN111370219 B CN 111370219B CN 202010319767 A CN202010319767 A CN 202010319767A CN 111370219 B CN111370219 B CN 111370219B
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- 239000002699 waste material Substances 0.000 title claims abstract description 56
- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 28
- 239000010959 steel Substances 0.000 title claims abstract description 28
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000004064 recycling Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000001257 hydrogen Substances 0.000 claims abstract description 51
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 51
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 45
- 238000002156 mixing Methods 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000005245 sintering Methods 0.000 claims abstract description 22
- 238000006356 dehydrogenation reaction Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000009694 cold isostatic pressing Methods 0.000 claims abstract description 9
- 238000010902 jet-milling Methods 0.000 claims abstract description 6
- 238000009768 microwave sintering Methods 0.000 claims abstract description 4
- 239000011812 mixed powder Substances 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 66
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 40
- 238000001816 cooling Methods 0.000 claims description 35
- 229910052786 argon Inorganic materials 0.000 claims description 33
- 239000000843 powder Substances 0.000 claims description 30
- 238000004321 preservation Methods 0.000 claims description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims description 20
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 238000003801 milling Methods 0.000 claims description 17
- 230000005347 demagnetization Effects 0.000 claims description 16
- 239000000314 lubricant Substances 0.000 claims description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- 238000011049 filling Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- 238000007873 sieving Methods 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 239000002216 antistatic agent Substances 0.000 claims description 6
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 6
- 239000008116 calcium stearate Substances 0.000 claims description 6
- 235000013539 calcium stearate Nutrition 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 6
- 239000003208 petroleum Substances 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- LGQXXHMEBUOXRP-UHFFFAOYSA-N tributyl borate Chemical compound CCCCOB(OCCCC)OCCCC LGQXXHMEBUOXRP-UHFFFAOYSA-N 0.000 claims description 6
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
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- 238000004140 cleaning Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 20
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 15
- 150000002910 rare earth metals Chemical class 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000007670 refining Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 239000008204 material by function Substances 0.000 abstract description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 1
- 239000008476 aike Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
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- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0576—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together pressed, e.g. hot working
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Hard Magnetic Materials (AREA)
Abstract
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Claims (6)
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CN202010319767.6A CN111370219B (zh) | 2020-04-22 | 2020-04-22 | 一种钕铁硼废旧磁钢全循环回收利用生产新永磁体的制备工艺 |
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CN202010319767.6A CN111370219B (zh) | 2020-04-22 | 2020-04-22 | 一种钕铁硼废旧磁钢全循环回收利用生产新永磁体的制备工艺 |
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CN111370219A CN111370219A (zh) | 2020-07-03 |
CN111370219B true CN111370219B (zh) | 2021-07-20 |
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CN111653406A (zh) * | 2020-06-29 | 2020-09-11 | 福建省长汀金龙稀土有限公司 | 永磁材料超细粉和成型废料的回收利用方法及其产品 |
CN114686746A (zh) * | 2022-04-27 | 2022-07-01 | 江苏晨朗电子集团有限公司 | 一种镀镍烧结钕铁硼废料的回收利用方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102211192A (zh) * | 2011-06-09 | 2011-10-12 | 天津一阳磁性材料有限责任公司 | 二次回收料制备高性能钕铁硼的方法 |
CN103805826A (zh) * | 2014-01-16 | 2014-05-21 | 宁波金科磁业有限公司 | NdFeB铁基复相材料烧结工艺 |
CN104439256A (zh) * | 2014-11-24 | 2015-03-25 | 湖南航天磁电有限责任公司 | 一种烧结钕铁硼氧化毛坯的回收再利用方法 |
CN105921736A (zh) * | 2016-04-27 | 2016-09-07 | 中铝广西有色金源稀土有限公司 | 一种钕铁硼超细粉的回收方法 |
CN106910615A (zh) * | 2017-02-28 | 2017-06-30 | 京磁材料科技股份有限公司 | 耐腐蚀钕铁硼磁体的制备方法 |
CN107077935A (zh) * | 2014-12-08 | 2017-08-18 | Lg电子株式会社 | 包含非磁性合金的热压变形的磁体及其制造方法 |
CN110504077A (zh) * | 2019-07-19 | 2019-11-26 | 宁波可可磁业股份有限公司 | 一种钕铁硼永磁材料及其制备方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20150033423A (ko) * | 2013-09-24 | 2015-04-01 | 엘지전자 주식회사 | 열간가압성형 공정을 이용한 이방성 열간가압성형 자석의 제조방법 및 이 방법으로 제조된 열간가압성형 자석 |
CN108470616B (zh) * | 2018-03-14 | 2020-07-28 | 华南理工大学 | 一种利用钕铁硼固体废料制备Nd2Fe14B/α-Fe纳米复合磁粉的方法 |
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2020
- 2020-04-22 CN CN202010319767.6A patent/CN111370219B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102211192A (zh) * | 2011-06-09 | 2011-10-12 | 天津一阳磁性材料有限责任公司 | 二次回收料制备高性能钕铁硼的方法 |
CN103805826A (zh) * | 2014-01-16 | 2014-05-21 | 宁波金科磁业有限公司 | NdFeB铁基复相材料烧结工艺 |
CN104439256A (zh) * | 2014-11-24 | 2015-03-25 | 湖南航天磁电有限责任公司 | 一种烧结钕铁硼氧化毛坯的回收再利用方法 |
CN107077935A (zh) * | 2014-12-08 | 2017-08-18 | Lg电子株式会社 | 包含非磁性合金的热压变形的磁体及其制造方法 |
CN105921736A (zh) * | 2016-04-27 | 2016-09-07 | 中铝广西有色金源稀土有限公司 | 一种钕铁硼超细粉的回收方法 |
CN106910615A (zh) * | 2017-02-28 | 2017-06-30 | 京磁材料科技股份有限公司 | 耐腐蚀钕铁硼磁体的制备方法 |
CN110504077A (zh) * | 2019-07-19 | 2019-11-26 | 宁波可可磁业股份有限公司 | 一种钕铁硼永磁材料及其制备方法 |
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Denomination of invention: A preparation process for producing new permanent magnets by recycling Nd-Fe-B waste magnetic steel Effective date of registration: 20230116 Granted publication date: 20210720 Pledgee: Qianshan Wanyuan Financing Guarantee Co.,Ltd. Pledgor: Anhui Jihua New Material Co.,Ltd. Registration number: Y2023980030897 |
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