REINIGUNG VON ELEMENTARSCHWEFEL

PCT No. PCT/CA90/00187 Sec. 371 Date Apr. 9, 1991 Sec. 102(e) Date Apr. 9, 1991 PCT Filed Jun. 5, 1990 PCT Pub. No. WO90/15021 PCT Pub. Date Dec. 13, 1990.A process for removing mercury or other metal impurities from elemental sulphur contaminated therewith includes mixing such elemental sulphur in...

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Hauptverfasser:	MAKWANA, MANHER, MOHAN, EDMONTON, ALBERTA T5X 3V7, CA, MASTERS, IAN, MARTIN, FORT SASKATCHEWAN, ALBERTA T8L 1B8, CA, CHALKLEY, MICHAEL, EDWARD, ST. ALBERT, ALBERTA T8N 5L3, CA, COLLINS, MICHAEL, JOSEPH, FORT SASKATCHEWAN, ALBERTA T8L 1B9, CA
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS
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Zusammenfassung:	PCT No. PCT/CA90/00187 Sec. 371 Date Apr. 9, 1991 Sec. 102(e) Date Apr. 9, 1991 PCT Filed Jun. 5, 1990 PCT Pub. No. WO90/15021 PCT Pub. Date Dec. 13, 1990.A process for removing mercury or other metal impurities from elemental sulphur contaminated therewith includes mixing such elemental sulphur in a molten state with an aqueous sulphide solution or an aqueous solution of sufficiently high pH which reacts with elemental sulphur and forms a sulphide solution to cause extraction of mercury or other metal contaminants from the elemental sulphur into the aqueous sulphide solutions, and separating the aqueous sulphide solution containing mercury or other metal contaminants from the molten elemental sulphur to provide an elemental sulphur product substantially free from mercury and other metal contaminants.