GB724778A - Process of roasting sulphur-containing materials in a fluidized bed - Google Patents
Process of roasting sulphur-containing materials in a fluidized bedInfo
- Publication number
- GB724778A GB724778A GB1033/53A GB103353A GB724778A GB 724778 A GB724778 A GB 724778A GB 1033/53 A GB1033/53 A GB 1033/53A GB 103353 A GB103353 A GB 103353A GB 724778 A GB724778 A GB 724778A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluidized bed
- velocity
- reduced
- section
- zone
- 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
In the roasting of sulphide ores as a fluidized bed, the gas velocity above the bed is reduced so that it approaches the settling velocity of the particles and the temperature is so maintained <PICT:0724778/III/1> in the zone of reduced velocity that the fine particles agglomerate, thereupon falling down through the ascending gas stream. As shown in the figure, a fluidized bed 10 having an upper interface 9 and supported on grate 3 is fed with sulphide ore at 1. In the preferred embodiment a section 13 of slightly enlarged diameter surmounts the lower section 10 in order to steady the gas stream before it ascends to the zone of reduced velocity 11 where the cross section is still further enlarged. Gases leave at 7 and the roasted product is withdrawn at 8. The ratio of the cross sections may be 1.5 or more to 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE724778X | 1952-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB724778A true GB724778A (en) | 1955-02-23 |
Family
ID=6634767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1033/53A Expired GB724778A (en) | 1952-01-23 | 1953-01-13 | Process of roasting sulphur-containing materials in a fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB724778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002013977A3 (en) * | 2000-08-16 | 2002-05-30 | Genencor Int | Symmetrical fluidization coater for high capacity manufacturing |
-
1953
- 1953-01-13 GB GB1033/53A patent/GB724778A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002013977A3 (en) * | 2000-08-16 | 2002-05-30 | Genencor Int | Symmetrical fluidization coater for high capacity manufacturing |
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