JPH0329011B2 - - Google Patents
Info
- Publication number
- JPH0329011B2 JPH0329011B2 JP60201377A JP20137785A JPH0329011B2 JP H0329011 B2 JPH0329011 B2 JP H0329011B2 JP 60201377 A JP60201377 A JP 60201377A JP 20137785 A JP20137785 A JP 20137785A JP H0329011 B2 JPH0329011 B2 JP H0329011B2
- Authority
- JP
- Japan
- Prior art keywords
- aqueous solution
- reaction
- lepidocrocite
- value
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 29
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 claims description 22
- 239000007864 aqueous solution Substances 0.000 claims description 20
- 229960002089 ferrous chloride Drugs 0.000 claims description 11
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910006299 γ-FeOOH Inorganic materials 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 239000003518 caustics Substances 0.000 claims description 2
- 229910021506 iron(II) hydroxide Inorganic materials 0.000 claims description 2
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 12
- 238000003756 stirring Methods 0.000 description 10
- 239000007858 starting material Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- 229910052598 goethite Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 230000005070 ripening Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 229910006540 α-FeOOH Inorganic materials 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60201377A JPS62119116A (ja) | 1985-09-11 | 1985-09-11 | レピツドクロサイトの製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60201377A JPS62119116A (ja) | 1985-09-11 | 1985-09-11 | レピツドクロサイトの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62119116A JPS62119116A (ja) | 1987-05-30 |
| JPH0329011B2 true JPH0329011B2 (enrdf_load_stackoverflow) | 1991-04-22 |
Family
ID=16440062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60201377A Granted JPS62119116A (ja) | 1985-09-11 | 1985-09-11 | レピツドクロサイトの製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62119116A (enrdf_load_stackoverflow) |
-
1985
- 1985-09-11 JP JP60201377A patent/JPS62119116A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62119116A (ja) | 1987-05-30 |
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