VERFAHREN ZUM REINIGEN METALLURGISCHER SCHWEFELSAEUREANHYDRID ENTHALTENDER GASE DURCH EXTRAKTION VON QUECKSILBER

The present invention relates to a process for purifying metallurgical gases containing sulphuric anhydride by extracting mercury, using the sulphurous anhydride which accompanies the metallurgical gases as an oxidizing agent for the mercury, an additional contribution of sulphurous anhydride being...

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Bibliographische Detailangaben
Hauptverfasser:	CUADRA HERRERA, ANTONIO DE LA, SANCHEZ, AMMANDO RODRIQUEZ, TALLANTE, MIGUEL FERNANDEZ
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The present invention relates to a process for purifying metallurgical gases containing sulphuric anhydride by extracting mercury, using the sulphurous anhydride which accompanies the metallurgical gases as an oxidizing agent for the mercury, an additional contribution of sulphurous anhydride being made when the latter is deficient, and employing in addition an acid to facilitate the oxidization of the mercury and a soluble thiocyanate in order to complete the oxidation of the mercury.