AN INTEGRATED HEAP LEACH PROCESS

THIS invention relates a method for processing a sulphide ore containing metal values comprising the integration of a sand heap leach (10) and a flotation process (12), providing a method which is suited to processing ores with significant quantities of leachable sulphides. The method includes a com...

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Bibliographic Details
Main Authors FILMER, Anthony Owen, ALEXANDER, Daniel John (Deceased), BILEY, Christopher Alan
Format Patent
LanguageEnglish
French
German
Published 09.10.2024
Subjects
CHEMISTRY
DIFFERENTIAL SEDIMENTATION
FERROUS OR NON-FERROUS ALLOYS
FLOTATION
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS
METALLURGY
PERFORMING OPERATIONS
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:THIS invention relates a method for processing a sulphide ore containing metal values comprising the integration of a sand heap leach (10) and a flotation process (12), providing a method which is suited to processing ores with significant quantities of leachable sulphides. The method includes a comminution step (14), and the classification of the comminuted ore into an oversize coarse fraction (16), a fine fraction (18) suitable for fine flotation and optionally an intermediate fraction (20) suitable for coarse flotation. A concentrate (30) containing iron sulphides from a fine flotation step (22) and optionally a concentrate (36) from a coarse flotation step (34) are blended with the oversize coarse fraction (16), to obtain a blended ore (39) is stacked and subjected to a heap leach process (40).
Bibliography:Application Number: EP20210843470