Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1998-07-13
2000-03-07
Lithgow, Thomas M.
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209 1, 209166, 209167, B03D 102, B03B 104, B03B 100
Patent
active
060328053
ABSTRACT:
A method of increasing both flotation selectivity and effectiveness of a sulfoxy radical-containing reagent added to a mineral separation circuit. The method involves adding a non-oxidizing gas to the mineral separation circuit prior to and/or simultaneously with the addition of the sulfoxy radical-containing reagent in a quantity sufficient to achieve a chemical environment conducive to flotation separation of minerals. The process is suitable for use with a broad range of slurries and flotation concentrates having a mixture of valuable materials including sulfidic copper minerals, sulfidic and non-sulfidic copper minerals, valuable lead and/or zinc and/or nickel minerals, sulfidic iron minerals (particularly pyrite) and non-sulfidic gangue material. It is particularly suitable for polymetallic ores containing economic values of copper and/or lead and/or zinc and/or nickel which is frequently in association with iron sulfide.
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Clark David William
Newell Andrew James Haigh
BOC Gases Australia Limited
Lithgow Thomas M.
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