Mineral processing, art of treating crude ores and mineral products in order to separate the valuable minerals from the waste rock, or gangue. It is the first process that most ores undergo after mining in order to provide a more concentrated material for the procedures of extractive metallurgy.
And the abandoned coal gangue covers people's living environment. Coal gangue is the emissions in the mining and coal washing process. 10. The role of the froth in a flotation process is to act as a separating medium to segregate valuable mineral particles from gangue. Staggered Spondaic Measure of ability to segregate competing Word Test speech signals using spondaic word pairs.