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A Review on Novel Techniques for Chalcopyrite Ore …

1.2.1. Flotation Separation Valuable mineral in an ore such as chalcopyrite ore can be separated from each other and from worthless gauge minerals by the froth flotation process.

Alkaline residues and the environment: a review of impacts ...

Around two billion tonnes of alkaline residues are produced globally each year by industries such as steel production, alumina refining and coal-fired power generation, with a total production estimate of 90 billion tonnes since industrialisation.

Soil classification - Faculty of Environment and Technology

Basic characteristics of soils Soil as an engineering material The term "soil" means different things to different people: To a geologist it represents the products of past surface processes.

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