percentage extraction

percentage extraction

[pər′sen·tij ik′strak·shən]
(mining engineering)
The proportion of a coal seam or other ores which is removed from a mine.
References in periodicals archive ?
The comparison of composition of the ethanol and acetone extracts of Eruca sativa (Taramira) and Rananculus muricatus (Castor) reveals that the solvent influences the percentage extraction of different acids.
TWP is to furnish the major part of the treatment plant, extraction of gold, and give a guarantee of percentage extraction performance in exchange for a toll-fee per tonne.
Percentage extraction is 60-75% and continuous miner utilisation is 70%.
We can now set up the optimal extraction problem as that of choosing a time path of percentage extraction rates [Mathematical Expression Omitted] to maximise
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