JPS6137341B2 - - Google Patents
Info
- Publication number
- JPS6137341B2 JPS6137341B2 JP60146450A JP14645085A JPS6137341B2 JP S6137341 B2 JPS6137341 B2 JP S6137341B2 JP 60146450 A JP60146450 A JP 60146450A JP 14645085 A JP14645085 A JP 14645085A JP S6137341 B2 JPS6137341 B2 JP S6137341B2
- Authority
- JP
- Japan
- Prior art keywords
- rare earth
- metal
- molten salt
- salt bath
- oxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 96
- 239000002184 metal Substances 0.000 claims abstract description 95
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 89
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 80
- 238000000034 method Methods 0.000 claims abstract description 56
- 239000011575 calcium Substances 0.000 claims abstract description 40
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 32
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 26
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 25
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000001110 calcium chloride Substances 0.000 claims abstract description 14
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 14
- 150000003839 salts Chemical class 0.000 claims description 52
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 31
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 23
- 230000009467 reduction Effects 0.000 claims description 21
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 239000011780 sodium chloride Substances 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 14
- 229910052779 Neodymium Inorganic materials 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 13
- 239000011701 zinc Substances 0.000 claims description 13
- 229910017493 Nd 2 O 3 Inorganic materials 0.000 claims description 12
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 11
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- -1 rare earth metal ions Chemical class 0.000 claims description 4
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims 4
- 229910000420 cerium oxide Inorganic materials 0.000 claims 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims 2
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 claims 2
- 229910003447 praseodymium oxide Inorganic materials 0.000 claims 2
- 239000010953 base metal Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 22
- 150000002739 metals Chemical class 0.000 abstract description 7
- 238000006722 reduction reaction Methods 0.000 description 14
- 239000006023 eutectic alloy Substances 0.000 description 9
- 235000011148 calcium chloride Nutrition 0.000 description 7
- 239000011734 sodium Substances 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- RCJVRSBWZCNNQT-UHFFFAOYSA-N dichloridooxygen Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000011946 reduction process Methods 0.000 description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 4
- 229910000640 Fe alloy Inorganic materials 0.000 description 3
- 229910000583 Nd alloy Inorganic materials 0.000 description 3
- 229910052777 Praseodymium Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 150000004673 fluoride salts Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- CSDQQAQKBAQLLE-UHFFFAOYSA-N 4-(4-chlorophenyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine Chemical compound C1=CC(Cl)=CC=C1C1C(C=CS2)=C2CCN1 CSDQQAQKBAQLLE-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910000521 B alloy Inorganic materials 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000528 Na alloy Inorganic materials 0.000 description 1
- 229910052773 Promethium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910000612 Sm alloy Inorganic materials 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- IKNAJTLCCWPIQD-UHFFFAOYSA-K cerium(3+);lanthanum(3+);neodymium(3+);oxygen(2-);phosphate Chemical compound [O-2].[La+3].[Ce+3].[Nd+3].[O-]P([O-])([O-])=O IKNAJTLCCWPIQD-UHFFFAOYSA-K 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000000622 liquid--liquid extraction Methods 0.000 description 1
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052590 monazite Inorganic materials 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- VQMWBBYLQSCNPO-UHFFFAOYSA-N promethium atom Chemical compound [Pm] VQMWBBYLQSCNPO-UHFFFAOYSA-N 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 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
- C22B5/00—General methods of reducing to metals
-
- 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
- C22B59/00—Obtaining rare earth metals
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62773684A | 1984-07-03 | 1984-07-03 | |
| US627736 | 1984-07-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6130639A JPS6130639A (ja) | 1986-02-12 |
| JPS6137341B2 true JPS6137341B2 (de) | 1986-08-23 |
Family
ID=24515917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14645085A Granted JPS6130639A (ja) | 1984-07-03 | 1985-07-03 | カルシウム金属による希土類元素酸化物の金属熱還元法 |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0170372B1 (de) |
| JP (1) | JPS6130639A (de) |
| KR (1) | KR910001581B1 (de) |
| AT (1) | ATE36560T1 (de) |
| AU (1) | AU575965B2 (de) |
| BR (1) | BR8503140A (de) |
| DE (1) | DE3564451D1 (de) |
| ES (1) | ES8702508A1 (de) |
| MX (1) | MX173880B (de) |
| ZA (1) | ZA854474B (de) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4578242A (en) * | 1984-07-03 | 1986-03-25 | General Motors Corporation | Metallothermic reduction of rare earth oxides |
| US4680055A (en) * | 1986-03-18 | 1987-07-14 | General Motors Corporation | Metallothermic reduction of rare earth chlorides |
| US4837109A (en) * | 1986-07-21 | 1989-06-06 | Hitachi Metals, Ltd. | Method of producing neodymium-iron-boron permanent magnet |
| AT389899B (de) * | 1986-08-19 | 1990-02-12 | Treibacher Chemische Werke Ag | Verfahren zur herstellung von se-metallen und se-haltigen legierungen |
| JPH01138119A (ja) * | 1987-11-24 | 1989-05-31 | Mitsubishi Metal Corp | 希土類電解スラグからサマリウムとユーロピウムを回収する方法 |
| DE3817553A1 (de) * | 1988-05-24 | 1989-11-30 | Leybold Ag | Verfahren zum herstellen von titan und zirkonium |
| US4917724A (en) * | 1988-10-11 | 1990-04-17 | General Motors Corporation | Method of decalcifying rare earth metals formed by the reduction-diffusion process |
| KR100373109B1 (ko) * | 1999-09-30 | 2003-02-25 | 해 남 현 | 토양의 치환성 칼리 침출방법 및 이를 이용하여 침출된 토양 치환성 칼리의 정량방법 |
| JP2004052003A (ja) * | 2002-07-16 | 2004-02-19 | Cabot Supermetal Kk | ニオブ粉末またはタンタル粉末の製造方法および製造装置 |
| RU2405045C2 (ru) * | 2008-05-12 | 2010-11-27 | Анатолий Евгеньевич Волков | Способ и устройство автоклавного производства химически активных металлов |
| MX339872B (es) * | 2010-01-12 | 2016-06-15 | Sylvan Source Inc | Interfaz de transferencia termica. |
| CN103436718B (zh) * | 2013-08-16 | 2015-06-17 | 宁夏东方钽业股份有限公司 | 一种高纯金属镧的制取方法 |
| KR20210012013A (ko) | 2018-05-30 | 2021-02-02 | 헬라 노벨 메탈스 엘엘씨 | 금속 화합물로부터의 미세 금속 분말의 제조 방법 |
| KR102153737B1 (ko) * | 2019-12-12 | 2020-09-09 | 한국지질자원연구원 | 철-희토류계 영구자석으로부터 선택염화법에 의한 희토류 원소의 회수 방법 |
| CN111139366B (zh) * | 2020-01-17 | 2024-05-31 | 鹰潭市宇钠科技中心(有限合伙) | 一种钠冷快堆中核纯级冷却材料制备提纯方法及其设备 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59177346A (ja) * | 1983-03-25 | 1984-10-08 | Sumitomo Special Metals Co Ltd | 希土類磁石素材用配合合金 |
| JPS6077943A (ja) * | 1983-10-03 | 1985-05-02 | Sumitomo Special Metals Co Ltd | 希土類磁石用原料合金の製造方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190923215A (en) * | 1909-10-11 | 1910-09-29 | Hans Kuzel | Process for the Production of Zirconium and other Rare Metals. |
| US2950962A (en) * | 1957-03-28 | 1960-08-30 | Carlson Oscar Norman | Reduction of fluoride to metal |
| GB1040468A (en) * | 1964-10-26 | 1966-08-24 | Dow Chemical Co | Preparation of rare earth metal, yttrium, or scandium |
| GB1579978A (en) * | 1977-07-05 | 1980-11-26 | Johnson Matthey Co Ltd | Production of yttrium |
| SU1027232A1 (ru) * | 1982-01-15 | 1983-07-07 | Научно-исследовательский институт металлургии | Способ получени лигатуры |
| DE3379131D1 (en) * | 1982-09-03 | 1989-03-09 | Gen Motors Corp | Re-tm-b alloys, method for their production and permanent magnets containing such alloys |
| US4578242A (en) * | 1984-07-03 | 1986-03-25 | General Motors Corporation | Metallothermic reduction of rare earth oxides |
-
1985
- 1985-06-07 DE DE8585304046T patent/DE3564451D1/de not_active Expired
- 1985-06-07 EP EP85304046A patent/EP0170372B1/de not_active Expired
- 1985-06-07 AT AT85304046T patent/ATE36560T1/de not_active IP Right Cessation
- 1985-06-13 ZA ZA854474A patent/ZA854474B/xx unknown
- 1985-06-28 BR BR8503140A patent/BR8503140A/pt not_active IP Right Cessation
- 1985-06-28 MX MX026616A patent/MX173880B/es unknown
- 1985-07-01 KR KR1019850004710A patent/KR910001581B1/ko not_active IP Right Cessation
- 1985-07-02 AU AU44488/85A patent/AU575965B2/en not_active Ceased
- 1985-07-02 ES ES544799A patent/ES8702508A1/es not_active Expired
- 1985-07-03 JP JP14645085A patent/JPS6130639A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59177346A (ja) * | 1983-03-25 | 1984-10-08 | Sumitomo Special Metals Co Ltd | 希土類磁石素材用配合合金 |
| JPS6077943A (ja) * | 1983-10-03 | 1985-05-02 | Sumitomo Special Metals Co Ltd | 希土類磁石用原料合金の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3564451D1 (en) | 1988-09-22 |
| ATE36560T1 (de) | 1988-09-15 |
| EP0170372B1 (de) | 1988-08-17 |
| JPS6130639A (ja) | 1986-02-12 |
| ES544799A0 (es) | 1987-01-01 |
| AU575965B2 (en) | 1988-08-11 |
| BR8503140A (pt) | 1986-03-18 |
| MX173880B (es) | 1994-04-07 |
| ES8702508A1 (es) | 1987-01-01 |
| AU4448885A (en) | 1986-01-09 |
| KR860001203A (ko) | 1986-02-24 |
| ZA854474B (en) | 1986-03-26 |
| KR910001581B1 (ko) | 1991-03-16 |
| EP0170372A1 (de) | 1986-02-05 |
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