FI942091A - Apparatus for removing selenium from selenium-containing material - Google Patents
Apparatus for removing selenium from selenium-containing material Download PDFInfo
- Publication number
- FI942091A FI942091A FI942091A FI942091A FI942091A FI 942091 A FI942091 A FI 942091A FI 942091 A FI942091 A FI 942091A FI 942091 A FI942091 A FI 942091A FI 942091 A FI942091 A FI 942091A
- Authority
- FI
- Finland
- Prior art keywords
- selenium
- oven
- installation
- containing material
- present
- Prior art date
Links
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- Manufacture And Refinement Of Metals (AREA)
- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to an installation for drying moist, selenium-containing material in an oven 1 efficiently such that the moisture in the material is vaporised and the selenium which is present in the material is caused to evaporate. The selenium-containing material is treated batchwise in the oven in roasting vessels 3 which have been arranged in several storeys which are situated one above the other. A uniform evaporation and vaporisation at the different levels of the material is achieved, in particular, by means of the optimised gas circulation according to the invention, which is achieved using a fan 6 which is arranged in the gable of the oven. The installation is particularly suitable for treating anode sludge from electrolysis, with the selenium being removed in the form of selenium oxide from the pretreated and filtered anode sludge using the installation in accordance with the invention. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI942091A FI96597C (en) | 1994-05-06 | 1994-05-06 | Apparatus for removing selenium from selenium-containing material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI942091A FI96597C (en) | 1994-05-06 | 1994-05-06 | Apparatus for removing selenium from selenium-containing material |
FI942091 | 1994-05-06 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI942091A0 FI942091A0 (en) | 1994-05-06 |
FI942091A true FI942091A (en) | 1995-11-07 |
FI96597B FI96597B (en) | 1996-04-15 |
FI96597C FI96597C (en) | 1996-07-25 |
Family
ID=8540650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI942091A FI96597C (en) | 1994-05-06 | 1994-05-06 | Apparatus for removing selenium from selenium-containing material |
Country Status (1)
Country | Link |
---|---|
FI (1) | FI96597C (en) |
-
1994
- 1994-05-06 FI FI942091A patent/FI96597C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI96597C (en) | 1996-07-25 |
FI96597B (en) | 1996-04-15 |
FI942091A0 (en) | 1994-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
MA | Patent expired |