VERFAHREN ZUM ABTRENNEN VON SELEN AUS SELENHALTIGEN ROHMATERIAL

VERFAHREN ZUM ABTRENNEN VON SELEN AUS SELENHALTIGEN ROHMATERIAL

The invention concerns a procedure for separating selenium from seleniferous raw material by roasting this material with oxygen at elevated temperature in enclosed space. With a view to improving the separation of selenium, the roasting is carried out in the presence of oxides of sulphur.

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Bibliographische Detailangaben
Hauptverfasser: JUHANI HYVAERINEN,OLLI VILJO, ELIAS LINDROOS,LEO, ANTERO ROSENBERG,EINO
Format: Patent
Sprache:ger
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:The invention concerns a procedure for separating selenium from seleniferous raw material by roasting this material with oxygen at elevated temperature in enclosed space. With a view to improving the separation of selenium, the roasting is carried out in the presence of oxides of sulphur.