Triboadhesive enrichment

Triboadhesive enrichment or beneficiation can be used successfully in two types of applications size classification of powdered materials and the separation of mineral particles from impurities. In the first category we may mention the classification of powders such as quartz, barite, magnetite, hematite, pyrite, feldspar, coal, asbestos, graphite, periclase (crystalline magnesium oxide), pegmatite, and iron ore. As an illustration of an application in the second category we may mention the separation of asbestos fiber ( falling product) from mineral dust that adheres to the drum surface ( retained product) [327]. 

As demonstrated by these examples, the triboadhesive method of enrichment or beneficiation is based on differences in adhesivity of particles due to differences in size or shape. 

The triboadhesive method of enrichment may be successfully used in two cases for separating powdered materials into different grades and for separating mineral particles from impurities. 

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