IE33599L - Iron oxide process - Google Patents
Iron oxide processInfo
- Publication number
- IE33599L IE33599L IE141469A IE141469A IE33599L IE 33599 L IE33599 L IE 33599L IE 141469 A IE141469 A IE 141469A IE 141469 A IE141469 A IE 141469A IE 33599 L IE33599 L IE 33599L
- Authority
- IE
- Ireland
- Prior art keywords
- ferric oxide
- iron
- ferrous
- oxide
- ferrous sulphate
- Prior art date
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title abstract 13
- 238000000034 method Methods 0.000 title abstract 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract 7
- 235000003891 ferrous sulphate Nutrition 0.000 abstract 5
- 239000011790 ferrous sulphate Substances 0.000 abstract 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 241000894006 Bacteria Species 0.000 abstract 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- -1 ammonium ions Chemical class 0.000 abstract 2
- 229960004887 ferric hydroxide Drugs 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 abstract 2
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 abstract 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 abstract 2
- 230000000737 periodic effect Effects 0.000 abstract 2
- 241000605222 Acidithiobacillus ferrooxidans Species 0.000 abstract 1
- 229910002651 NO3 Inorganic materials 0.000 abstract 1
- 239000012736 aqueous medium Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 235000015097 nutrients Nutrition 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000000926 separation method Methods 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]
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Compounds Of Iron (AREA)
Abstract
1,245,169. Iron oxide. PFIZER Inc. 27 Feb., 1969 [13 Nov., 1968], No. 10681/69. Heading C1A. High purity ferric oxide is prepared by cultivating an iron oxide bacterium under aerobic conditions in the presence of elemental iron, ferrous iron, and "ferrous sulphate" equivalent to at least one grain per litre of ferrous iron, at a pH from 2À2-3 and a temperature of 15-40 C., thereby precipitating hydrous ferric oxide. The "ferrous sulphate" is defined as anhydrous ferrous sulphate copperas, technical FeSO 4 .7H 2 O, or the complexes such as FeSO 4 .(NH 4 ) 2 SO 4 .6H 2 O and FeSO 4 .K 2 SO 4 . To the reaction may be added ferric hydroxide, yellow ferric hydroxide or red ferric oxide as seed for the hydrous ferric oxide. The preferred embodiment is Thiobacillus ferrooxidans as bacterium, copperas as "ferrous sulphate" with a ferrous iron concentration of 5-6 gms. per litre and a pH of 2À6-2À8. The process may be made continuous by the continuous or periodic addition of elemental iron and "ferrous sulphate" and the continuous or periodic removal of the hydrous ferric oxide containing liquor from which the hydrous ferric oxide is separated, to which additional nutrients are added and which is recycled to the reaction stage. The aqueous medium in which the bacterium is cultivated should also contain a source of nitrogen either in the form of ammonium ions or nitrate ions along with other inorganic salts. After separation the hydrous ferric oxide may be calcined at preferably above about 650 C.
[GB1245169A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77528668A | 1968-11-13 | 1968-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE33599L true IE33599L (en) | 1970-05-13 |
| IE33599B1 IE33599B1 (en) | 1974-08-21 |
Family
ID=25103937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE141469A IE33599B1 (en) | 1968-11-13 | 1969-10-14 | Iron oxide process |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4818474B1 (en) |
| BR (1) | BR6913638D0 (en) |
| DE (1) | DE1953917A1 (en) |
| FR (1) | FR2023157B1 (en) |
| GB (1) | GB1245169A (en) |
| IE (1) | IE33599B1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE791402A (en) * | 1971-11-16 | 1973-03-01 | Kansai Paint Co Ltd | METHOD FOR TREATING A METAL SURFACE |
| US4102951A (en) * | 1975-05-14 | 1978-07-25 | Monash University | Calcination of basic ferric sulphates |
| IL132506A (en) * | 1999-10-21 | 2006-06-11 | Biopigment Ltd | Method for production of iron oxide pigments |
| CN103848459B (en) * | 2014-01-29 | 2015-08-26 | 浙江工业大学 | A kind of biomineralization legal system is for sea urchin shape α-Fe 2o 3method |
| CN104313056A (en) * | 2014-10-16 | 2015-01-28 | 四川大学 | Method for preparing iron oxide red through bacterial oxidation |
| CN115895294B (en) * | 2022-11-22 | 2023-10-03 | 云浮鸿志新材料有限公司 | Composite nano transparent iron oxide yellow and preparation method thereof |
-
1969
- 1969-02-27 GB GB1068169A patent/GB1245169A/en not_active Expired
- 1969-10-14 IE IE141469A patent/IE33599B1/en unknown
- 1969-10-27 DE DE19691953917 patent/DE1953917A1/en active Pending
- 1969-10-27 BR BR21363869A patent/BR6913638D0/en unknown
- 1969-10-28 FR FR6936942A patent/FR2023157B1/fr not_active Expired
- 1969-10-28 JP JP8638569A patent/JPS4818474B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BR6913638D0 (en) | 1973-01-02 |
| FR2023157B1 (en) | 1974-05-03 |
| DE1953917A1 (en) | 1970-06-04 |
| GB1245169A (en) | 1971-09-08 |
| IE33599B1 (en) | 1974-08-21 |
| FR2023157A1 (en) | 1970-08-07 |
| JPS4818474B1 (en) | 1973-06-06 |
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