JP5222438B1 - タングステン細粉の製造方法 - Google Patents
タングステン細粉の製造方法 Download PDFInfo
- Publication number
- JP5222438B1 JP5222438B1 JP2012548167A JP2012548167A JP5222438B1 JP 5222438 B1 JP5222438 B1 JP 5222438B1 JP 2012548167 A JP2012548167 A JP 2012548167A JP 2012548167 A JP2012548167 A JP 2012548167A JP 5222438 B1 JP5222438 B1 JP 5222438B1
- Authority
- JP
- Japan
- Prior art keywords
- tungsten powder
- tungsten
- powder
- acid
- aqueous solution
- 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 - Fee Related
Links
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 125
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 title claims description 28
- 229910052721 tungsten Inorganic materials 0.000 title claims description 23
- 239000010937 tungsten Substances 0.000 title claims description 23
- 239000002245 particle Substances 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 55
- 239000007864 aqueous solution Substances 0.000 claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims abstract description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 12
- 239000011707 mineral Substances 0.000 claims abstract description 12
- 238000010298 pulverizing process Methods 0.000 claims abstract description 10
- 238000007254 oxidation reaction Methods 0.000 claims description 34
- 230000003647 oxidation Effects 0.000 claims description 32
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 16
- 239000008151 electrolyte solution Substances 0.000 claims description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 8
- 239000007800 oxidant agent Substances 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000002994 raw material Substances 0.000 description 16
- 238000010908 decantation Methods 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000007788 liquid Substances 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000012153 distilled water Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- 238000002048 anodisation reaction Methods 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- -1 tungsten halide Chemical class 0.000 description 2
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 2
- OFEAOSSMQHGXMM-UHFFFAOYSA-N 12007-10-2 Chemical compound [W].[W]=[B] OFEAOSSMQHGXMM-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- POPCQNRKDVTFGA-UHFFFAOYSA-N boric acid methanol Chemical compound OC.OB(O)O POPCQNRKDVTFGA-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 229940077239 chlorous acid Drugs 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 229940117975 chromium trioxide Drugs 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N chromium trioxide Inorganic materials O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical class [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- RHMZKSWPMYAOAZ-UHFFFAOYSA-N diethyl peroxide Chemical compound CCOOCC RHMZKSWPMYAOAZ-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- HPGPEWYJWRWDTP-UHFFFAOYSA-N lithium peroxide Chemical compound [Li+].[Li+].[O-][O-] HPGPEWYJWRWDTP-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000009700 powder processing Methods 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical group [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 229910021342 tungsten silicide Inorganic materials 0.000 description 1
- CMPGARWFYBADJI-UHFFFAOYSA-L tungstic acid Chemical compound O[W](O)(=O)=O CMPGARWFYBADJI-UHFFFAOYSA-L 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/052—Sintered electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/052—Sintered electrodes
- H01G9/0525—Powder therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012548167A JP5222438B1 (ja) | 2011-11-29 | 2012-08-29 | タングステン細粉の製造方法 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011259926 | 2011-11-29 | ||
| JP2011259926 | 2011-11-29 | ||
| JP2012548167A JP5222438B1 (ja) | 2011-11-29 | 2012-08-29 | タングステン細粉の製造方法 |
| PCT/JP2012/071761 WO2013080617A1 (ja) | 2011-11-29 | 2012-08-29 | タングステン細粉の製造方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013046892A Division JP5731559B2 (ja) | 2011-11-29 | 2013-03-08 | 電解コンデンサ用タングステン細粉 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP5222438B1 true JP5222438B1 (ja) | 2013-06-26 |
| JPWO2013080617A1 JPWO2013080617A1 (ja) | 2015-04-27 |
Family
ID=48535094
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012548167A Expired - Fee Related JP5222438B1 (ja) | 2011-11-29 | 2012-08-29 | タングステン細粉の製造方法 |
| JP2013046892A Expired - Fee Related JP5731559B2 (ja) | 2011-11-29 | 2013-03-08 | 電解コンデンサ用タングステン細粉 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013046892A Expired - Fee Related JP5731559B2 (ja) | 2011-11-29 | 2013-03-08 | 電解コンデンサ用タングステン細粉 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20140294663A1 (enExample) |
| EP (1) | EP2786819A4 (enExample) |
| JP (2) | JP5222438B1 (enExample) |
| CN (1) | CN103945965B (enExample) |
| WO (1) | WO2013080617A1 (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013136844A (ja) * | 2011-11-29 | 2013-07-11 | Showa Denko Kk | 電解コンデンサ用タングステン細粉 |
| WO2013172453A1 (ja) * | 2012-05-18 | 2013-11-21 | 昭和電工株式会社 | コンデンサ素子の製造方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2933040A4 (en) | 2012-12-17 | 2016-08-17 | Showa Denko Kk | METHOD FOR PRODUCING A FINE TREATMENT OF TUNGSTEN |
| US9959980B2 (en) * | 2014-12-09 | 2018-05-01 | Showa Denko K.K. | Solid electrolytic capacitor element and method for manufacturing solid electrolytic capacitor element |
| RU2759551C1 (ru) * | 2021-04-05 | 2021-11-15 | Общество с ограниченной ответственностью "Вириал" (ООО "Вириал") | Способ получения гидрированного порошка пластичного металла или сплава |
| CN119328151A (zh) * | 2024-11-18 | 2025-01-21 | 西安建筑科技大学 | 一种用于制备球形钼粉的高能球磨微氧化-氨剥离方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5211752A (en) * | 1975-07-17 | 1977-01-28 | Toshiba Corp | Method of manufacturing cathodes for electron tubes |
| JP2003272959A (ja) * | 2002-03-15 | 2003-09-26 | Sanyo Electric Co Ltd | コンデンサ |
| JP2005325448A (ja) * | 2004-04-15 | 2005-11-24 | Jfe Mineral Co Ltd | タンタル粉末およびこれを用いた固体電解コンデンサ |
| JP2006299385A (ja) * | 2005-04-25 | 2006-11-02 | Noritake Co Ltd | 白金粉末、その製造方法、および圧電セラミック材用白金ペースト |
| WO2012086272A1 (ja) * | 2010-12-24 | 2012-06-28 | 昭和電工株式会社 | タングステン粉、コンデンサの陽極体及び電解コンデンサ |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63293104A (ja) * | 1987-05-25 | 1988-11-30 | Nippon Steel Corp | 銅微粉末の製造方法 |
| US5993513A (en) * | 1996-04-05 | 1999-11-30 | Cabot Corporation | Method for controlling the oxygen content in valve metal materials |
| US5954856A (en) * | 1996-04-25 | 1999-09-21 | Cabot Corporation | Method of making tantalum metal powder with controlled size distribution and products made therefrom |
| JP4274857B2 (ja) | 2002-07-26 | 2009-06-10 | 三洋電機株式会社 | 電解コンデンサの製造方法 |
| TWI225656B (en) | 2002-07-26 | 2004-12-21 | Sanyo Electric Co | Electrolytic capacitor and a fabrication method therefor |
| JP2004091852A (ja) * | 2002-08-30 | 2004-03-25 | Fujitsu Ltd | マグネシウム材に対する高耐食性陽極酸化膜の形成方法およびこれにより形成されたマグネシウム材製筐体 |
| US7154743B2 (en) | 2002-12-13 | 2006-12-26 | Sanyo Electric Co., Ltd. | Solid electrolytic capacitor and method for manufacturing same |
| US7875347B2 (en) * | 2003-12-29 | 2011-01-25 | General Electric Company | Composite coatings for groundwall insulation, method of manufacture thereof and articles derived therefrom |
| WO2005099936A1 (ja) * | 2004-04-15 | 2005-10-27 | Jfe Mineral Company, Ltd. | タンタル粉末およびこれを用いた固体電解コンデンサ |
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| CN101983804B (zh) * | 2010-12-03 | 2012-07-04 | 中南大学 | 近球形钨粉的制备方法 |
| US9669460B2 (en) * | 2011-11-15 | 2017-06-06 | Showa Denko K.K. | Method for producing fine tungsten powder |
| US20140294663A1 (en) * | 2011-11-29 | 2014-10-02 | Showa Denko K.K. | Method for manufacturing fine tungsten powder |
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- 2012-08-29 US US14/361,041 patent/US20140294663A1/en not_active Abandoned
- 2012-08-29 WO PCT/JP2012/071761 patent/WO2013080617A1/ja not_active Ceased
- 2012-08-29 JP JP2012548167A patent/JP5222438B1/ja not_active Expired - Fee Related
- 2012-08-29 EP EP12852802.3A patent/EP2786819A4/en not_active Withdrawn
- 2012-08-29 CN CN201280057134.6A patent/CN103945965B/zh not_active Expired - Fee Related
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2013
- 2013-03-08 JP JP2013046892A patent/JP5731559B2/ja not_active Expired - Fee Related
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013136844A (ja) * | 2011-11-29 | 2013-07-11 | Showa Denko Kk | 電解コンデンサ用タングステン細粉 |
| WO2013172453A1 (ja) * | 2012-05-18 | 2013-11-21 | 昭和電工株式会社 | コンデンサ素子の製造方法 |
| JP5412606B1 (ja) * | 2012-05-18 | 2014-02-12 | 昭和電工株式会社 | コンデンサ素子の製造方法 |
| US9601277B2 (en) | 2012-05-18 | 2017-03-21 | Showa Denko K.K. | Method for manufacturing capacitor element |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5731559B2 (ja) | 2015-06-10 |
| JPWO2013080617A1 (ja) | 2015-04-27 |
| CN103945965B (zh) | 2016-05-18 |
| EP2786819A4 (en) | 2015-09-16 |
| US20140294663A1 (en) | 2014-10-02 |
| CN103945965A (zh) | 2014-07-23 |
| WO2013080617A1 (ja) | 2013-06-06 |
| JP2013136844A (ja) | 2013-07-11 |
| EP2786819A1 (en) | 2014-10-08 |
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