JPS6323136B2 - - Google Patents
Info
- Publication number
- JPS6323136B2 JPS6323136B2 JP56211135A JP21113581A JPS6323136B2 JP S6323136 B2 JPS6323136 B2 JP S6323136B2 JP 56211135 A JP56211135 A JP 56211135A JP 21113581 A JP21113581 A JP 21113581A JP S6323136 B2 JPS6323136 B2 JP S6323136B2
- Authority
- JP
- Japan
- Prior art keywords
- cobalt
- iron oxide
- magnetic
- slurry
- coercive force
- 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 53
- 230000005291 magnetic effect Effects 0.000 claims description 44
- 229910017052 cobalt Inorganic materials 0.000 claims description 25
- 239000010941 cobalt Substances 0.000 claims description 25
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 22
- 239000002002 slurry Substances 0.000 claims description 16
- 150000001868 cobalt Chemical class 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 9
- 230000001590 oxidative effect Effects 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 150000002736 metal compounds Chemical class 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000003302 ferromagnetic material Substances 0.000 claims 1
- 235000013980 iron oxide Nutrition 0.000 description 24
- 238000000034 method Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 11
- 238000009826 distribution Methods 0.000 description 10
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 150000001869 cobalt compounds Chemical class 0.000 description 5
- 238000000151 deposition Methods 0.000 description 5
- 230000005294 ferromagnetic effect Effects 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 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
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- JLPULHDHAOZNQI-ZTIMHPMXSA-N 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCC\C=C/C\C=C/CCCCC JLPULHDHAOZNQI-ZTIMHPMXSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 229940011182 cobalt acetate Drugs 0.000 description 1
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 1
- -1 ferrous compound Chemical class 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229940083466 soybean lecithin Drugs 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56211135A JPS58115029A (ja) | 1981-12-26 | 1981-12-26 | コバルト含有強磁性酸化鉄の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56211135A JPS58115029A (ja) | 1981-12-26 | 1981-12-26 | コバルト含有強磁性酸化鉄の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58115029A JPS58115029A (ja) | 1983-07-08 |
| JPS6323136B2 true JPS6323136B2 (enrdf_load_stackoverflow) | 1988-05-14 |
Family
ID=16600962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56211135A Granted JPS58115029A (ja) | 1981-12-26 | 1981-12-26 | コバルト含有強磁性酸化鉄の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58115029A (enrdf_load_stackoverflow) |
-
1981
- 1981-12-26 JP JP56211135A patent/JPS58115029A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58115029A (ja) | 1983-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4857417A (en) | Cobalt-containing iron oxide magnetic particles and method for the preparation of the same | |
| JPS608606B2 (ja) | 強磁性粉末の製法 | |
| US4209412A (en) | Process for producing nonstoichiometric ferroso-ferric oxides | |
| US4303699A (en) | Method of manufacturing magnetic powder | |
| JPS6242337B2 (enrdf_load_stackoverflow) | ||
| JPS6323136B2 (enrdf_load_stackoverflow) | ||
| US4933014A (en) | Magnetic iron oxide pigments and a process for their preparation | |
| JPH0270003A (ja) | 強磁性鉄粉の処理方法 | |
| US5609789A (en) | Cobalt-containing magnetic iron oxide and process for producing the same | |
| JPS6323135B2 (enrdf_load_stackoverflow) | ||
| JPS5888122A (ja) | コバルト含有強磁性酸化鉄の製造方法 | |
| JP3482177B2 (ja) | コバルト含有磁性酸化鉄粉末およびそれを用いた磁気記録媒体 | |
| JPH0755832B2 (ja) | コバルト含有強磁性酸化鉄粉末の製造方法 | |
| JP2897794B2 (ja) | コバルト被着型磁性酸化鉄粒子粉末の製造法 | |
| EP0583621B1 (en) | Process for producing acicular gamma iron (III) oxyhydroxide particles | |
| JPS6018609B2 (ja) | 強磁性粉末およびその製造方法 | |
| JP3020374B2 (ja) | コバルト含有磁性酸化鉄粉末の製造方法 | |
| JP2885252B2 (ja) | 磁気記録用針状磁性酸化鉄粒子粉末の製造法 | |
| EP0310682B1 (en) | Fine ferromagnetic powder for magnetic recording | |
| JPS5853495B2 (ja) | 磁気記録媒体 | |
| JPH0114176B2 (enrdf_load_stackoverflow) | ||
| JPS5853494B2 (ja) | 磁気記録用強磁性粉末の製造方法 | |
| JPS6132258B2 (enrdf_load_stackoverflow) | ||
| JPS638224A (ja) | 磁気記録用強磁性粉末の製造方法 | |
| JPS63183616A (ja) | 磁気記録媒体用磁性粉末 |