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Process for increasing the selectivity of mineral flotation

Patent ·
OSTI ID:7005149

A method for enhancing the selectivity of a collector agent used in froth flotation for attaining mineral separation in a copper sulphidic mineral bearing ore beneficiation process is described comprising, adding a premixed aqueous solution containing a water soluble polyvalent metal sulphate, and an alkali metal silicate and an alkali metal metabisulphite to an aqueous slurry of the copper sulphidic mineral bearing ore in a stage preceding froth flotation, the froth flotation being conducted in the presence of the collector agents, to obtain a separated ore phase enriched in the copper minerals, and a flotation tailing.

Assignee:
Falconbridge, Limited, Toronto
Patent Number(s):
US 4735783
OSTI ID:
7005149
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
COPPER
COPPER ORES
DISPERSIONS
ELEMENTS
FLOTATION
METALS
MINERALS
MIXTURES
ORE PROCESSING
ORES
OXYGEN COMPOUNDS
PROCESSING
RECOVERY
SEPARATION PROCESSES
SOLID WASTES
SOLUTIONS
SULFATES
SULFUR COMPOUNDS
TAILINGS
TRANSITION ELEMENTS
WASTES