GB433333A - Improvements in black oxide of iron - Google Patents
Improvements in black oxide of ironInfo
- Publication number
- GB433333A GB433333A GB1339734A GB1339734A GB433333A GB 433333 A GB433333 A GB 433333A GB 1339734 A GB1339734 A GB 1339734A GB 1339734 A GB1339734 A GB 1339734A GB 433333 A GB433333 A GB 433333A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lbs
- precipitation
- oxidation
- per
- iron
- 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
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 title abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- 238000001556 precipitation Methods 0.000 abstract 2
- 239000002002 slurry Substances 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 235000003891 ferrous sulphate Nutrition 0.000 abstract 1
- 239000011790 ferrous sulphate Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/08—Ferroso-ferric oxide [Fe3O4]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
Black oxide of iron is obtained from precipita<PICT:0433333/III/1> ted ferrous compounds by oxidation with air or other oxygen - containing gas at elevated temperatures, say from 220--300 DEG F., and at pressures above about 40 lbs. per sq. in. and up to say 100 lbs. per sq.in. The precipitate may be obtained by treating ferrous sulphate or chloride with an alkali carbonate or hydroxide, preferably in excess, and precipitation may be effected at temperatures of 125--200 DEG F. Precipitation and oxidation may take place in a steam - jacketed autoclave 10 provided with inlets 11--13 for the reactants and an outlet tube 22. Turbine wheels 17, 18 mounted on a rotating shaft 14 serve to draw slurry towards the axis of the autoclave and force it out from the periphery of the wheels, vanes 19, 21 being fitted to minimize swirling and cause vertical movement of the slurry. Air is supplied through a pipe 27 to a perforated annular conduit 28 situated above the wheel 18.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1339734A GB433333A (en) | 1934-05-03 | 1934-05-03 | Improvements in black oxide of iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1339734A GB433333A (en) | 1934-05-03 | 1934-05-03 | Improvements in black oxide of iron |
Publications (1)
Publication Number | Publication Date |
---|---|
GB433333A true GB433333A (en) | 1935-08-13 |
Family
ID=10022211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1339734A Expired GB433333A (en) | 1934-05-03 | 1934-05-03 | Improvements in black oxide of iron |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB433333A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2529874A (en) * | 1947-09-27 | 1950-11-14 | Mellon Inst Of Ind Res | Process for manufacturing ammonium salts and magnetic iron oxide from solutions of ferrous salts |
US2665193A (en) * | 1948-11-22 | 1954-01-05 | Minnesota Mining & Mfg | Red iron oxide of high color purity and process of making same |
US4024232A (en) * | 1974-02-25 | 1977-05-17 | Montedison S.P.A. | Method of preparing magnetite having a controlled particle size, starting from ferrous sulphate solutions |
US4025611A (en) * | 1974-02-25 | 1977-05-24 | Montedison Fibre S.P.A. | Process for obtaining hyperfine magnetite powder |
US4054639A (en) * | 1974-02-25 | 1977-10-18 | Montedison S.P.A. | Process for preparing magnetite starting from ferrous sulphate solutions |
CN111573740A (en) * | 2020-07-02 | 2020-08-25 | 正太新材料科技有限责任公司 | Preparation method of iron oxide black |
CN113772741A (en) * | 2021-09-06 | 2021-12-10 | 江苏宇星科技有限公司 | Method for producing iron oxide black by liquid phase synthesis |
-
1934
- 1934-05-03 GB GB1339734A patent/GB433333A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2529874A (en) * | 1947-09-27 | 1950-11-14 | Mellon Inst Of Ind Res | Process for manufacturing ammonium salts and magnetic iron oxide from solutions of ferrous salts |
US2665193A (en) * | 1948-11-22 | 1954-01-05 | Minnesota Mining & Mfg | Red iron oxide of high color purity and process of making same |
US4024232A (en) * | 1974-02-25 | 1977-05-17 | Montedison S.P.A. | Method of preparing magnetite having a controlled particle size, starting from ferrous sulphate solutions |
US4025611A (en) * | 1974-02-25 | 1977-05-24 | Montedison Fibre S.P.A. | Process for obtaining hyperfine magnetite powder |
US4054639A (en) * | 1974-02-25 | 1977-10-18 | Montedison S.P.A. | Process for preparing magnetite starting from ferrous sulphate solutions |
CN111573740A (en) * | 2020-07-02 | 2020-08-25 | 正太新材料科技有限责任公司 | Preparation method of iron oxide black |
CN111573740B (en) * | 2020-07-02 | 2022-08-23 | 正太新材料科技有限责任公司 | Preparation method of iron oxide black |
CN113772741A (en) * | 2021-09-06 | 2021-12-10 | 江苏宇星科技有限公司 | Method for producing iron oxide black by liquid phase synthesis |
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