JPH0575807B2 - - Google Patents
Info
- Publication number
- JPH0575807B2 JPH0575807B2 JP61314169A JP31416986A JPH0575807B2 JP H0575807 B2 JPH0575807 B2 JP H0575807B2 JP 61314169 A JP61314169 A JP 61314169A JP 31416986 A JP31416986 A JP 31416986A JP H0575807 B2 JPH0575807 B2 JP H0575807B2
- Authority
- JP
- Japan
- Prior art keywords
- particles
- magnetic
- iron
- isotropic shape
- particle size
- 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
- 239000002245 particle Substances 0.000 claims description 83
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 52
- 239000006249 magnetic particle Substances 0.000 claims description 35
- 229910052742 iron Inorganic materials 0.000 claims description 23
- 229910052595 hematite Inorganic materials 0.000 claims description 21
- 239000011019 hematite Substances 0.000 claims description 21
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 21
- 230000002378 acidificating effect Effects 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910002588 FeOOH Inorganic materials 0.000 claims 1
- 230000005415 magnetization Effects 0.000 description 16
- 229910003153 β-FeOOH Inorganic materials 0.000 description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000007864 aqueous solution Substances 0.000 description 9
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 238000000635 electron micrograph Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000001747 exhibiting effect Effects 0.000 description 5
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000001493 electron microscopy Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000010335 hydrothermal treatment Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 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
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 229910021506 iron(II) hydroxide Inorganic materials 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Developing Agents For Electrophotography (AREA)
- Compounds Of Iron (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61314169A JPS63162802A (ja) | 1986-12-25 | 1986-12-25 | 等方的形状を呈した鉄を主成分とする金属磁性粒子粉末の製造法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61314169A JPS63162802A (ja) | 1986-12-25 | 1986-12-25 | 等方的形状を呈した鉄を主成分とする金属磁性粒子粉末の製造法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63162802A JPS63162802A (ja) | 1988-07-06 |
| JPH0575807B2 true JPH0575807B2 (enrdf_load_stackoverflow) | 1993-10-21 |
Family
ID=18050076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61314169A Granted JPS63162802A (ja) | 1986-12-25 | 1986-12-25 | 等方的形状を呈した鉄を主成分とする金属磁性粒子粉末の製造法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63162802A (enrdf_load_stackoverflow) |
-
1986
- 1986-12-25 JP JP61314169A patent/JPS63162802A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63162802A (ja) | 1988-07-06 |
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