GB762102A - Preparation of red oxide of iron - Google Patents
Preparation of red oxide of ironInfo
- Publication number
- GB762102A GB762102A GB2521153A GB2521153A GB762102A GB 762102 A GB762102 A GB 762102A GB 2521153 A GB2521153 A GB 2521153A GB 2521153 A GB2521153 A GB 2521153A GB 762102 A GB762102 A GB 762102A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali
- iron salt
- iron
- slurry
- ferric oxide
- 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 1
- 239000003513 alkali Substances 0.000 abstract 4
- 150000002505 iron Chemical class 0.000 abstract 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 3
- 239000002002 slurry Substances 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000007792 addition Methods 0.000 abstract 1
- 238000007664 blowing Methods 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/22—Compounds of iron
- C09C1/24—Oxides of iron
-
- 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]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- 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
-
- 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
- C01P2006/80—Compositional purity
- C01P2006/82—Compositional purity water content
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
Red ferric oxide is prepared by oxidizing a mixture of nearly equivalent quantities of ferrous salt and alkali to form colloidal seed particles, and effecting the growth of ferric oxide thereon until the particles reach the desired colour. The proportion of alkali should be 0.9 to 1.1 times the equivalent of the iron salt. The precipitated slurry is continuously oxidized by blowing air through it, the slurry is heated to 50 DEG to 100 DEG C. and ferric oxide is precipated on the seed particles either by further additions of alkali and iron salt or by adding metallic iron in the presence of a small amount of iron salt as catalyst. The product progressively darkens and the oxidation process is continued, e.g. from 1 to 7 days until the desired shade is obtained. The precipitate is filtered, washed, dried and disintegrated and may be further darkened by heating at about 1150 DEG F. The alkali is preferably added to the iron salt as it yields a slurry of lower viscosity. U.S.A. Specification 2,574,459 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2521153A GB762102A (en) | 1953-09-11 | 1953-09-11 | Preparation of red oxide of iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2521153A GB762102A (en) | 1953-09-11 | 1953-09-11 | Preparation of red oxide of iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB762102A true GB762102A (en) | 1956-11-21 |
Family
ID=10224018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2521153A Expired GB762102A (en) | 1953-09-11 | 1953-09-11 | Preparation of red oxide of iron |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB762102A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0187331A2 (en) * | 1985-01-09 | 1986-07-16 | Bayer Ag | Process for the preparation of purely and clearly tinted red iron oxide pigments |
| DE3637664A1 (en) * | 1986-11-05 | 1988-05-19 | Rethmeier Fritz | Stable dye dispersions for colouring concrete |
| EP0290908A2 (en) * | 1987-05-15 | 1988-11-17 | Bayer Ag | Pure colour iron oxide pigments, process for manufacturing them and their use |
-
1953
- 1953-09-11 GB GB2521153A patent/GB762102A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0187331A2 (en) * | 1985-01-09 | 1986-07-16 | Bayer Ag | Process for the preparation of purely and clearly tinted red iron oxide pigments |
| EP0187331A3 (en) * | 1985-01-09 | 1989-03-22 | Bayer Ag | Process for the preparation of purely and clearly tinted red iron oxide pigments |
| DE3637664A1 (en) * | 1986-11-05 | 1988-05-19 | Rethmeier Fritz | Stable dye dispersions for colouring concrete |
| EP0290908A2 (en) * | 1987-05-15 | 1988-11-17 | Bayer Ag | Pure colour iron oxide pigments, process for manufacturing them and their use |
| EP0290908A3 (en) * | 1987-05-15 | 1989-03-01 | Bayer Ag | Pure colour iron oxide pigments, process for manufacturing them and their use |
| US4911760A (en) * | 1987-05-15 | 1990-03-27 | Bayer Aktiengesellschaft | Color pure iron oxide pigments, a process for their preparation |
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