IMPROVED FLOTATION OF SULPHIDE MINERALS

The present invention relates generally to a process and an apparatus for flotation of sulphide minerals, such as sulphide minerals hosted in ores ric h in magnesium minerals. The process involves grinding of the nickel ore rich in magnesium minerals and thereafter separation of the ground material...

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Bibliographische Detailangaben
1. Verfasser:	SENIOR, GEOFF D
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CIGARETTES CIGARS DIFFERENTIAL SEDIMENTATION FLOTATION HUMAN NECESSITIES MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING ORCHEWING MATCH BOXES PERFORMING OPERATIONS SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SMOKERS' REQUISITES SNUFF TOBACCO TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates generally to a process and an apparatus for flotation of sulphide minerals, such as sulphide minerals hosted in ores ric h in magnesium minerals. The process involves grinding of the nickel ore rich in magnesium minerals and thereafter separation of the ground material into a coarse and fine stream of particles coarser than about 30 microns and finer than about 30 microns, respectively. Optionally, the fines stream may be further separated into a slimes fraction. The coarse and fine flotation streams are then fit to separate parallel flotation circuits. Acid and/or activator is added during flotation of the coarse stream only. Significantly improved recoveries and grades were obtained with reduced acid consumption.< /SDOAB>