JPH0257321B2 - - Google Patents
Info
- Publication number
- JPH0257321B2 JPH0257321B2 JP59232427A JP23242784A JPH0257321B2 JP H0257321 B2 JPH0257321 B2 JP H0257321B2 JP 59232427 A JP59232427 A JP 59232427A JP 23242784 A JP23242784 A JP 23242784A JP H0257321 B2 JPH0257321 B2 JP H0257321B2
- Authority
- JP
- Japan
- Prior art keywords
- cobalt
- iron oxide
- salt
- iron
- amount
- 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 - Lifetime
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 71
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 52
- 239000010941 cobalt Substances 0.000 claims description 45
- 229910017052 cobalt Inorganic materials 0.000 claims description 45
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 45
- 229910052742 iron Inorganic materials 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 25
- 239000006247 magnetic powder Substances 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 230000029052 metamorphosis Effects 0.000 claims description 7
- 150000001868 cobalt Chemical class 0.000 claims description 6
- 150000002505 iron Chemical class 0.000 claims description 6
- 159000000009 barium salts Chemical class 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 5
- 159000000007 calcium salts Chemical class 0.000 claims description 4
- 159000000008 strontium salts Chemical class 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052712 strontium Inorganic materials 0.000 claims description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 235000013980 iron oxide Nutrition 0.000 description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 16
- -1 alkaline earth metal salt Chemical class 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 230000004048 modification Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000843 powder Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000012153 distilled water Substances 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 150000001342 alkaline earth metals Chemical class 0.000 description 5
- 229960002089 ferrous chloride Drugs 0.000 description 5
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 5
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 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
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229940090961 chromium dioxide Drugs 0.000 description 2
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 description 2
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-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
- 230000008021 deposition Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- 101100496858 Mus musculus Colec12 gene Proteins 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 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
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical compound [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910001631 strontium chloride Inorganic materials 0.000 description 1
- AHBGXTDRMVNFER-UHFFFAOYSA-L strontium dichloride Chemical compound [Cl-].[Cl-].[Sr+2] AHBGXTDRMVNFER-UHFFFAOYSA-L 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59232427A JPS61111508A (ja) | 1984-11-06 | 1984-11-06 | 磁気記録用磁性粉末の製造法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59232427A JPS61111508A (ja) | 1984-11-06 | 1984-11-06 | 磁気記録用磁性粉末の製造法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61111508A JPS61111508A (ja) | 1986-05-29 |
JPH0257321B2 true JPH0257321B2 (fr) | 1990-12-04 |
Family
ID=16939095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59232427A Granted JPS61111508A (ja) | 1984-11-06 | 1984-11-06 | 磁気記録用磁性粉末の製造法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61111508A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS638223A (ja) * | 1986-06-27 | 1988-01-14 | Showa Denko Kk | 磁気記録用強磁性粉末の製造方法 |
US4851258A (en) * | 1987-01-21 | 1989-07-25 | Showa Denko Kabushiki Kaisha | Method for preparing magnetic particles for magnetic-recording media |
-
1984
- 1984-11-06 JP JP59232427A patent/JPS61111508A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61111508A (ja) | 1986-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4287233A (en) | Manufacture of acicular cobalt-containing magnetic iron oxide | |
US4296149A (en) | Manufacture of acicular cobalt-containing magnetic iron oxide | |
US4873010A (en) | Spindle-like magnetic iron oxide particles and process for producing the same | |
US3897354A (en) | Cobalt-containing acicular ferrimagnetic iron oxide of improved remanence stability | |
US3977985A (en) | Magnetic recording medium comprising cobalt or cobalt alloy coated particles of spicular magnetite | |
WO1995002242A1 (fr) | Particules d'oxyde de fer magnetiques et dopees et procede de preparation | |
US4594267A (en) | Process for producing cobalt-containing magnetic iron oxide powder | |
US4010310A (en) | Magnetic powder | |
JPS6242337B2 (fr) | ||
US4457955A (en) | Process for producing magnetizable particles | |
JPS6149251B2 (fr) | ||
JPH0257321B2 (fr) | ||
JPH059922B2 (fr) | ||
US4851258A (en) | Method for preparing magnetic particles for magnetic-recording media | |
US4650597A (en) | Preparation of finely divided isotropic cobalt-containing ferrite powder | |
JP2001081506A (ja) | 磁性粉製造用先駆物質およびこれから得た強磁性金属粉末 | |
US4495164A (en) | Process for producing acicular magnetite or acicular maghemite | |
JP3337046B2 (ja) | コバルトと鉄とを主成分とする紡錘状金属磁性粒子粉末及びその製造法 | |
JPS6334609B2 (fr) | ||
JPS6242858B2 (fr) | ||
JPH11251122A (ja) | 磁性粉製造用先駆物質およびこれから得た強磁性金属粉末 | |
JPS59169937A (ja) | 磁性粉末の製造方法 | |
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 | |
JP2897794B2 (ja) | コバルト被着型磁性酸化鉄粒子粉末の製造法 | |
JPS6149252B2 (fr) |