GB993115A - Improvements relating to the treatment of ferrous sulphate - Google Patents
Improvements relating to the treatment of ferrous sulphateInfo
- Publication number
- GB993115A GB993115A GB1258260A GB1258260A GB993115A GB 993115 A GB993115 A GB 993115A GB 1258260 A GB1258260 A GB 1258260A GB 1258260 A GB1258260 A GB 1258260A GB 993115 A GB993115 A GB 993115A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloride
- ferrous
- calcium
- hydrolysed
- sulphate
- 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
- 239000011790 ferrous sulphate Substances 0.000 title abstract 3
- 235000003891 ferrous sulphate Nutrition 0.000 title abstract 3
- 229960002089 ferrous chloride Drugs 0.000 abstract 5
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 abstract 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 239000001110 calcium chloride Substances 0.000 abstract 2
- 229910001628 calcium chloride Inorganic materials 0.000 abstract 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 1
- 235000019738 Limestone Nutrition 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 abstract 1
- 239000001175 calcium sulphate Substances 0.000 abstract 1
- 235000011132 calcium sulphate Nutrition 0.000 abstract 1
- 235000010261 calcium sulphite Nutrition 0.000 abstract 1
- 239000004295 calcium sulphite Substances 0.000 abstract 1
- 150000001805 chlorine compounds Chemical class 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 239000006028 limestone Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000000243 solution 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
- C01G49/06—Ferric oxide [Fe2O3]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Ferrous sulphate in aqueous solution is treated with calcium chloride to form calcium sulphate and ferrous chloride, the resultant ferrous chloride is hydrolysed to iron oxide and the hydrogen chloride produced during the hydrolysis is caused to react with limestone or chalk to yield calcium chloride, and this chloride is used to treat further ferrous sulphate. The calcium sulphite is separated from the ferrous chloride solution by filtration and the ferrous chloride is converted to solid form and hydrolysed by a mixture of steam and oxygen at a temperature of from 300-350 DEG C. The ferrous chloride may, however, be dried and hydrolysed in a single step by being sprayed into gases containing steam and oxygen at 300-350 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1258260A GB993115A (en) | 1960-08-08 | 1960-08-08 | Improvements relating to the treatment of ferrous sulphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1258260A GB993115A (en) | 1960-08-08 | 1960-08-08 | Improvements relating to the treatment of ferrous sulphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB993115A true GB993115A (en) | 1965-05-26 |
Family
ID=10007290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1258260A Expired GB993115A (en) | 1960-08-08 | 1960-08-08 | Improvements relating to the treatment of ferrous sulphate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB993115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014189A1 (en) * | 1979-01-24 | 1980-08-06 | VOEST-ALPINE Aktiengesellschaft | Process for the working up of ferrous II sulphate heptahydrate |
| US4495162A (en) * | 1981-09-04 | 1985-01-22 | A/S Niro Atomizer | Preparation of a calcium sulfate anhydrite material of low chloride content |
-
1960
- 1960-08-08 GB GB1258260A patent/GB993115A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014189A1 (en) * | 1979-01-24 | 1980-08-06 | VOEST-ALPINE Aktiengesellschaft | Process for the working up of ferrous II sulphate heptahydrate |
| US4495162A (en) * | 1981-09-04 | 1985-01-22 | A/S Niro Atomizer | Preparation of a calcium sulfate anhydrite material of low chloride content |
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