GB739213A - An improved process for roasting sulphide ores - Google Patents
An improved process for roasting sulphide oresInfo
- Publication number
- GB739213A GB739213A GB2314653A GB2314653A GB739213A GB 739213 A GB739213 A GB 739213A GB 2314653 A GB2314653 A GB 2314653A GB 2314653 A GB2314653 A GB 2314653A GB 739213 A GB739213 A GB 739213A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zone
- ore
- admitted
- air supply
- withdrawn
- 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
- C22B1/02—Roasting processes
- C22B1/10—Roasting processes in fluidised form
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)
- Manufacture And Refinement Of Metals (AREA)
Abstract
<PICT:0739213/III/1> In a fluidizing process for roasting sulphide ores, particularly zinc blende, the main oxidizing current of air is injected so as to cause three distinct zones of material to be formed-an upper zone of normal fluidized conditions, an intermediate zone of intense turbulence and a lower zone of no fluidization, from which the completely roasted ore is withdrawn. In Fig. 2 the ore is fed through a pipe 15 and the principal air supply is admitted through nozzle 4 from chambers 3 in streamlined hollow bars 2 which restrict the cross-section of the reactor whereby a zone of intense turbulence is produced at this level, above which is a zone of normal fluidization extending up to level 17. To complete the reaction, a secondary air supply insufficient to agitate the ore is admitted through nozzles 6 from chamber 5 in the lower parts of the bars 2, and the unfluidized bed 7 is traversed by a small tertiary air supply admitted at 9. The roasted ore is withdrawn by a conveyer 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2314653A GB739213A (en) | 1953-08-21 | 1953-08-21 | An improved process for roasting sulphide ores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2314653A GB739213A (en) | 1953-08-21 | 1953-08-21 | An improved process for roasting sulphide ores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB739213A true GB739213A (en) | 1955-10-26 |
Family
ID=10190904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2314653A Expired GB739213A (en) | 1953-08-21 | 1953-08-21 | An improved process for roasting sulphide ores |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB739213A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0251247A1 (en) * | 1986-07-03 | 1988-01-07 | ASEA STAL Aktiebolag | Power plant with combustion of a fuel in a fluidized bed |
-
1953
- 1953-08-21 GB GB2314653A patent/GB739213A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0251247A1 (en) * | 1986-07-03 | 1988-01-07 | ASEA STAL Aktiebolag | Power plant with combustion of a fuel in a fluidized bed |
| US4805405A (en) * | 1986-07-03 | 1989-02-21 | Asea Stal Ab | Power plant with combustion of a fuel in a fluidized bed |
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