Coal India to produce sand using overburden rocks; likely to begin ops at 5 plants by next year

"CIL has envisaged to process the overburden rocks for sand production in mines where OB material contain about 60 per cent sandstone by volume which is harnessed through crushing and processing of overburden," the coal ministry said in a statement.

from Industry-Economic Times https://ift.tt/6xcYOVp
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