JPS6349722B2 - - Google Patents
Info
- Publication number
- JPS6349722B2 JPS6349722B2 JP55137418A JP13741880A JPS6349722B2 JP S6349722 B2 JPS6349722 B2 JP S6349722B2 JP 55137418 A JP55137418 A JP 55137418A JP 13741880 A JP13741880 A JP 13741880A JP S6349722 B2 JPS6349722 B2 JP S6349722B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- sho
- tokuko
- iron oxyhydroxide
- feooh
- 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
- 239000002184 metal Substances 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 23
- CUPCBVUMRUSXIU-UHFFFAOYSA-N [Fe].OOO Chemical compound [Fe].OOO CUPCBVUMRUSXIU-UHFFFAOYSA-N 0.000 claims description 11
- 229910021519 iron(III) oxide-hydroxide Inorganic materials 0.000 claims description 11
- 239000006247 magnetic powder Substances 0.000 claims description 11
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000010304 firing Methods 0.000 claims description 4
- 229910006540 α-FeOOH Inorganic materials 0.000 claims description 3
- 229910006299 γ-FeOOH Inorganic materials 0.000 claims description 2
- 229910002588 FeOOH Inorganic materials 0.000 claims 1
- 230000005291 magnetic effect Effects 0.000 description 26
- 230000005294 ferromagnetic effect Effects 0.000 description 12
- 239000000843 powder Substances 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000000956 alloy Substances 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 229910001566 austenite Inorganic materials 0.000 description 6
- 229910000859 α-Fe Inorganic materials 0.000 description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 229910052753 mercury Inorganic materials 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000006722 reduction reaction Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 150000003377 silicon compounds Chemical class 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- -1 organic acid salts Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- 229910017061 Fe Co Inorganic materials 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 229910052598 goethite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 229910003153 β-FeOOH Inorganic materials 0.000 description 1
Landscapes
- Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
- Paints Or Removers (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55137418A JPS5763605A (en) | 1980-10-01 | 1980-10-01 | Manufacture of metallic magnetic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55137418A JPS5763605A (en) | 1980-10-01 | 1980-10-01 | Manufacture of metallic magnetic powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5763605A JPS5763605A (en) | 1982-04-17 |
| JPS6349722B2 true JPS6349722B2 (lt) | 1988-10-05 |
Family
ID=15198160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55137418A Granted JPS5763605A (en) | 1980-10-01 | 1980-10-01 | Manufacture of metallic magnetic powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5763605A (lt) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5980901A (ja) * | 1982-11-01 | 1984-05-10 | Fuji Photo Film Co Ltd | 強磁性金属粉末の製造法 |
| JPS60181210A (ja) * | 1984-02-27 | 1985-09-14 | Fuji Photo Film Co Ltd | 強磁性金属粉末の製造方法 |
| JPH02175806A (ja) * | 1988-12-27 | 1990-07-09 | Ishihara Sangyo Kaisha Ltd | 磁気記録用金属磁性粉末の製造方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4883100A (lt) * | 1972-01-21 | 1973-11-06 | ||
| JPS5177900A (lt) * | 1974-11-29 | 1976-07-06 | Montedison Spa | |
| JPS534895A (en) * | 1976-06-16 | 1978-01-17 | Fujitsu Ltd | Manufacture of needle-shaped magnetic iron particles |
| JPS5422958A (en) * | 1977-07-20 | 1979-02-21 | Matsushita Electric Ind Co Ltd | Dust remover for vacuum cleaner |
-
1980
- 1980-10-01 JP JP55137418A patent/JPS5763605A/ja active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4883100A (lt) * | 1972-01-21 | 1973-11-06 | ||
| JPS5177900A (lt) * | 1974-11-29 | 1976-07-06 | Montedison Spa | |
| JPS534895A (en) * | 1976-06-16 | 1978-01-17 | Fujitsu Ltd | Manufacture of needle-shaped magnetic iron particles |
| JPS5422958A (en) * | 1977-07-20 | 1979-02-21 | Matsushita Electric Ind Co Ltd | Dust remover for vacuum cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5763605A (en) | 1982-04-17 |
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