Brief introduction of mineral processing

Mineral processing may be comprehensively described as the physical or chemical processing methods or their combinations, which may or may not lead to changes in the physical and/or chemical properties of a mined mineral resource, and which ultimately result in the production of a processed mineral product that can either be ready for use or be better suited for further processing. Mineral processing operations can be grouped into front-end and back-end operations as shown in Figure 1. The front-end operations essentially comprise processes leading to material severance and the back-end operations, to separation of the severed material into two parts – one that is valuable (called the concentrate), and the other that is not (called the tailings). Since most of the mineral processing operations are conducted wet, dewatering forms very much an integral part of the whole scheme. The content of the present chapter consists primarily of the two cited ends which best describe or convey quite succinctly all the essential ingredients that make mineral processing a subject in its own right
The need for mineral processing is not at all difficult to comprehend. There is virtually no mineral in the mined condition that is suitable for immediate application for chemical treatment to a final product; rather it needs some sort of physical processing. There are a number of reasons for this. Particle size control is one. Second, there often arises a need to expose a constituent mineral for subsequent processing. This task is performed by comminution.
Exposure of valuable mineral is a necessity for the purposes of leaching. Adequate liberation of the constituent minerals from each other is clearly a prerequisite for obtaining a separation between them. A third reason can be to control composition, whereby the aim is to get rid of the material that will be detrimental to subsequent chemical processing, as for example, in smelting.
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How to extract silica sand from kaolin tailings?

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METALLURGICAL EFFICIENCY

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Mineral froth flotation

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