GB830108A - Improvements in manufacture of ferric oxide - Google Patents
Improvements in manufacture of ferric oxideInfo
- Publication number
- GB830108A GB830108A GB13402/58A GB1340258A GB830108A GB 830108 A GB830108 A GB 830108A GB 13402/58 A GB13402/58 A GB 13402/58A GB 1340258 A GB1340258 A GB 1340258A GB 830108 A GB830108 A GB 830108A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ferrous salt
- fe2o3
- hydrochloric
- suspension
- sufficient
- 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 Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title abstract 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 2
- 239000000725 suspension Substances 0.000 abstract 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 230000029087 digestion Effects 0.000 abstract 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 229930014626 natural product Natural products 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C01G49/06—Ferric oxide [Fe2O3]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
Alpha ferric oxide of red colour suitable for use as a pigment is prepared by digesting pigmentary g -Fe2O3 in suspension in an aqueous solution containing 0.1-0.5 mol/l. of a ferrous salt of an inorganic acid at 70-100 DEG C. The g -Fe2O3 may be the natural product or produced by oxidation of natural or synthetic magnetite or dehydration of hydrated g -Fe2O3. In connection with the preparation of the starting material Specification 643,303 and U.S.A. Specifications 802,928, 857,044 re - issues, 1,392,925, 1,392,926, 1,420,985, 1,424,635 and 2,357,096 are mentioned. If the initial material contains a minor proportion of ferrous oxide, there may be added to a slurry thereof in water, an acid, e.g. sulphuric or hydrochloric sufficient to react therewith or hydrochloric sufficient to to react therewith and form Itogether with additional ferrous salt, if necessary) the solution of ferrous salt for the digestion; alternatively oxygen or air may be passed through the suspension. The ferrous salt solution preferably has a pH of 2.5-4.5 and contains no appreciable amount of free acid or ferric iron.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US830108XA | 1957-06-13 | 1957-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB830108A true GB830108A (en) | 1960-03-09 |
Family
ID=22175350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13402/58A Expired GB830108A (en) | 1957-06-13 | 1958-04-28 | Improvements in manufacture of ferric oxide |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB830108A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3262755A (en) * | 1961-11-30 | 1966-07-26 | Saint Gobain | Iron oxide pigments |
-
1958
- 1958-04-28 GB GB13402/58A patent/GB830108A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3262755A (en) * | 1961-11-30 | 1966-07-26 | Saint Gobain | Iron oxide pigments |
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