selective flotation

selective flotation

[si′lek·tiv flō′tā·shən]
(mining engineering)
The surface or froth selecting of the valuable minerals rather than the gangue.
References in periodicals archive ?
The most common practice for processing of complex sulphide ores is the successive selective flotation of various sulphide minerals using specific flotation reagents and controlling various parameters (Day, 2002; Bushell and Testut, 1985).
Alkyl aminated nanocelluloses in selective flotation of aluminium oxide and quartz," Chemical Engineering Science, vol.
The ore will be processed in a stand-alone concentrator, whose design production is expected to be 50,000 mt/d, with the output material being fed to a primary crushing line and a SAG milling line, selective flotation through the use of oversized cells, a roasting process, acid plant and arsenic abatement.
These were (1) gamma flotation, where the selective flotation is achieved by the reduction of the liquid surface tension to a value between the critical surface tension of the two plastics; (2) selective wetting of the plastics by selective surface chemical modification or by adsorption of surfactants; and (3) selective wetting by physical modification or surface oxidation using a physical method such as plasma treatment and corona discharge.
Other topics examined include a sustainable source for phosphorous fertilizer, the role of surfactants on collectors and modifiers for improving phosphate flotation, the recovery of uranium from phosphoric acid, and selective flotation of calcite from apatite using phosphoric acid and citric acid.
It was one of the primary reasons that made selective flotation of asphaltite very difficult.
The production of separate concentrates from complex ores containing economic amounts of copper, lead and zinc is complicated, and selective flotation seems to be the only viable method.
Selective flotation will produce separate zinc and lead concentrates, containing coproduct silver.
Selective flotation separation of the PET/PVC mixture is impossible without changing the surface properties of these polymers.
In terms of activity and selectivity, the range is designed for the collective or selective flotation of sulphide minerals, noble metals and non-sulphidic but sulphidised minerals.

Full browser ?