flotation process


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flotation process,

in mineral treatment and mining, process for concentrating the metal-bearing mineral in an oreore,
metal-bearing mineral mass that can be profitably mined. Nearly all rock deposits contain some metallic minerals, but in many cases the concentration of metal is too low to justify mining the ore.
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. Crude ore is ground to a fine powder and mixed with water, frothing reagents, and collecting reagents. When air is blown through the mixture, mineral particles cling to the bubbles, which rise to form a froth on the surface. The waste material (gangue) settles to the bottom. The froth is skimmed off, and the water and chemicals are distilled or otherwise removed, leaving a clean concentrate. The process, also called the froth-flotation process, is used for a number of minerals, especially silver.
References in periodicals archive ?
The system ensures no product loss due to sump overflow, and FVF variations in the flotation process are balanced by CARS venting, resulting in better pump efficiency, according to Weir.
The objective of the microflotation test was to investigate the interaction of fine magnesite, dolomite, serpentine, and quartz particles in the flotation process.
In the feldspar circuit, which consists of a rougher and cleaner two-step flotation process, the feldspar is concentrated in the froth overflow fraction while the quartz is depressed and remains in the underflow or tails.
Department of Energy and the Virginia Center for Innovative Technology to develop and patent the microbubble flotation process, which has been marketed commercially under the name Microcel.
2011) Dissolved Air Flotation: A numerical investigation of the flotation process.
Xinqian et al (2002) found differences between the properties of vitrinite and inertinite which rise to the possibility of separating single macerals by flotation process, Sarkar (1984).
But the share payout is thought to kick in only if there is a profitable flotation process within five years of the initial sale, meaning the clock is ticking for the taxpayer.
The ash reduction indicated could not be attributed to the flotation process alone.
The flotation process is based on the formation of a ternary ion-associate between Cu2+, methylthymol blue (MTB) and cetyltrimethylammonium bromide (CTAB) which is floated at the interface of aqueous phase and n-hexane by shaking in a separating funnel.
This is a very favourable mineral as it is easy to beneficiate by means of the flotation process.
This work showed that froth flotation process has the potential to solve the problem of refinement of the separation.
The plan consists of a process plant that will employ a conventional crushing, grinding, and flotation process for gold extraction and for the disposal of thickened tailings and mine rock waste.