FI942091A - Apparatus for removing selenium from selenium-containing material - Google Patents

Apparatus for removing selenium from selenium-containing material Download PDF

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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
Application number
FI942091A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI96597C (en
FI96597B (en
FI942091A0 (en
Inventor
Pauli Aaro Tapani Koistinen
Kurt Lindstroem
Tuomo Veikko Juhani Kivistoe
Original Assignee
Wenmec Systems Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wenmec Systems Oy filed Critical Wenmec Systems Oy
Priority to FI942091A priority Critical patent/FI96597C/en
Publication of FI942091A0 publication Critical patent/FI942091A0/en
Publication of FI942091A publication Critical patent/FI942091A/en
Application granted granted Critical
Publication of FI96597B publication Critical patent/FI96597B/en
Publication of FI96597C publication Critical patent/FI96597C/en

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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>
FI942091A 1994-05-06 1994-05-06 Apparatus for removing selenium from selenium-containing material FI96597C (en)

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)

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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