GB236256A - Improvements in the desulphurisation and concentration of sulphide iron ores - Google Patents
Improvements in the desulphurisation and concentration of sulphide iron oresInfo
- Publication number
- GB236256A GB236256A GB590824A GB590824A GB236256A GB 236256 A GB236256 A GB 236256A GB 590824 A GB590824 A GB 590824A GB 590824 A GB590824 A GB 590824A GB 236256 A GB236256 A GB 236256A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphur
- iron
- sulphur dioxide
- pyrites
- hot gases
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/11—Removing sulfur, phosphorus or arsenic other than by roasting
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
- Treating Waste Gases (AREA)
Abstract
Sulphide ores of iron, e.g. iron pyrites or pyrrhotite are desulphurized by treatment with sulphur dioxide at a gradually increasing temperature which does not exceed 950 DEG C. The hot gases containing sulphur dioxide first liberate the more mobile portion of the sulphur and the resulting ferrous sulphide reacts with the sulphur dioxide in the hottest part of the furnace or in a separate furnace to give porous magnetic oxide of iron and free sulphur. The latter is passed to condensation chambers and the iron oxide is subjected to the usual electromagnetic separation process in order to concentrate it, when it may be briquetted. The sulphur dioxide may be obtained by burning sulphur or pyrites in air in burners of the usual type, but the resulting hot gases should not contain more than one per cent of oxygen. The reaction is facilitated by the regulated admission of steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB590824A GB236256A (en) | 1924-03-07 | 1924-03-07 | Improvements in the desulphurisation and concentration of sulphide iron ores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB590824A GB236256A (en) | 1924-03-07 | 1924-03-07 | Improvements in the desulphurisation and concentration of sulphide iron ores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB236256A true GB236256A (en) | 1925-07-07 |
Family
ID=9804869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB590824A Expired GB236256A (en) | 1924-03-07 | 1924-03-07 | Improvements in the desulphurisation and concentration of sulphide iron ores |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB236256A (en) |
-
1924
- 1924-03-07 GB GB590824A patent/GB236256A/en not_active Expired
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