SEPARATION OF SULFIDES BY SELECTIVE OXIDATION

A bulk concentrate containing chalcopyrite, pentlandite and pyrrhotite is aerated under alkaline conditions, then subjected in turn to primary flotation, cyanide addition, conditioning, secondary flotation and cleaning flotation. As a result, a three-way separation is achieved to produce a copper co...

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Bibliographische Detailangaben
Hauptverfasser:	AGAR, GORDON E, KIPKIE, WILLIAM B, WELLS, PETER F
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	DIFFERENTIAL SEDIMENTATION FLOTATION MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS PERFORMING OPERATIONS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING
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Beschreibung
Zusammenfassung:	A bulk concentrate containing chalcopyrite, pentlandite and pyrrhotite is aerated under alkaline conditions, then subjected in turn to primary flotation, cyanide addition, conditioning, secondary flotation and cleaning flotation. As a result, a three-way separation is achieved to produce a copper concentrate, a high grade nickel concentrate and a third product containing most of the pyrrhotite.