JPS6242857B2 - - Google Patents
Info
- Publication number
- JPS6242857B2 JPS6242857B2 JP53129862A JP12986278A JPS6242857B2 JP S6242857 B2 JPS6242857 B2 JP S6242857B2 JP 53129862 A JP53129862 A JP 53129862A JP 12986278 A JP12986278 A JP 12986278A JP S6242857 B2 JPS6242857 B2 JP S6242857B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic powder
- cobalt
- iron oxide
- water
- oxide magnetic
- 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
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 78
- 239000006247 magnetic powder Substances 0.000 claims description 49
- 229910017052 cobalt Inorganic materials 0.000 claims description 30
- 239000010941 cobalt Substances 0.000 claims description 30
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 150000001868 cobalt Chemical class 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 21
- 238000010438 heat treatment Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000005291 magnetic effect Effects 0.000 description 6
- 239000012670 alkaline solution Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 2
- 229940044175 cobalt sulfate Drugs 0.000 description 2
- 229910000361 cobalt sulfate Inorganic materials 0.000 description 2
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 1
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 1
- 229910001981 cobalt nitrate Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12986278A JPS5556016A (en) | 1978-10-20 | 1978-10-20 | Production of ferromagnetic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12986278A JPS5556016A (en) | 1978-10-20 | 1978-10-20 | Production of ferromagnetic powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5556016A JPS5556016A (en) | 1980-04-24 |
| JPS6242857B2 true JPS6242857B2 (ko) | 1987-09-10 |
Family
ID=15020103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12986278A Granted JPS5556016A (en) | 1978-10-20 | 1978-10-20 | Production of ferromagnetic powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5556016A (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01194306A (ja) * | 1988-01-29 | 1989-08-04 | Sony Corp | コバルト含有酸化鉄磁性粉末の製造方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4974399A (ko) * | 1972-11-24 | 1974-07-18 | ||
| JPS5037668A (ko) * | 1973-08-07 | 1975-04-08 | ||
| JPS5037667A (ko) * | 1973-08-07 | 1975-04-08 | ||
| JPS5259894A (en) * | 1975-11-13 | 1977-05-17 | Tdk Corp | Magnetic material |
| JPS5376197A (en) * | 1976-12-17 | 1978-07-06 | Fuji Photo Film Co Ltd | Production of magnetic iron oxide |
| JPS5539659A (en) * | 1978-09-12 | 1980-03-19 | Hitachi Maxell Ltd | Treating method of magnetic powder |
-
1978
- 1978-10-20 JP JP12986278A patent/JPS5556016A/ja active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4974399A (ko) * | 1972-11-24 | 1974-07-18 | ||
| JPS5037668A (ko) * | 1973-08-07 | 1975-04-08 | ||
| JPS5037667A (ko) * | 1973-08-07 | 1975-04-08 | ||
| JPS5259894A (en) * | 1975-11-13 | 1977-05-17 | Tdk Corp | Magnetic material |
| JPS5376197A (en) * | 1976-12-17 | 1978-07-06 | Fuji Photo Film Co Ltd | Production of magnetic iron oxide |
| JPS5539659A (en) * | 1978-09-12 | 1980-03-19 | Hitachi Maxell Ltd | Treating method of magnetic powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5556016A (en) | 1980-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4267207A (en) | Process for producing cobalt-containing ferromagnetic iron oxide powder | |
| KR880001711B1 (ko) | 자성분말의 제조방법 | |
| JPS6149251B2 (ko) | ||
| JPS6242857B2 (ko) | ||
| JPS6242858B2 (ko) | ||
| JPS6135135B2 (ko) | ||
| JPS6217364B2 (ko) | ||
| KR870001378B1 (ko) | 코발트 함유 자기 산화철 분말의 제조방법 | |
| JPS5829604B2 (ja) | キヨウジセイフンマツノセイホウ | |
| JPH0126163B2 (ko) | ||
| JPS60141624A (ja) | コバルト含有針状磁性酸化鉄の製造方法 | |
| JPS6323139B2 (ko) | ||
| JPS6132259B2 (ko) | ||
| JP2660714B2 (ja) | コバルト含有強磁性酸化鉄粉末の製造方法 | |
| JPS6151401B2 (ko) | ||
| JPS58115030A (ja) | コバルト含有磁性酸化鉄粉末の製造方法 | |
| JPS5931961B2 (ja) | 強磁性粉末の製造方法 | |
| JPH0147522B2 (ko) | ||
| JPS6149252B2 (ko) | ||
| JPS6349722B2 (ko) | ||
| JPH0545529B2 (ko) | ||
| JPH0351660B2 (ko) | ||
| JPS6012763B2 (ja) | 強磁性粉末の製造方法 | |
| JPH038083B2 (ko) | ||
| JPS639734B2 (ko) |