Mineral processing refers to the dry and wet crushing and grinding of ore or other mineral-bearing products for the purpose of raising concentrate grade; removal of waste and unwanted or deleterious substances from an otherwise useful product; separation into distinct species of mixed minerals; chemical attack and dissolution of selected values.
Among the methods used are hand sorting (including radioactivation and fluorescence); dense media separation; screening and classification; gravity treatment with jigs, shaking tables, Humphries spirals, Frue vanners, or sluices; magnetic separation at low or high intensity; leach treatment, perhaps using pressure and heat; and froth flotation.
"Mineral processing" is in the NAICS Code "33313"
Mining and Oil and Gas Field Machinery Manufacturing
Mineral processing and beneficiating machinery manufacturing
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Mineral (Mineral refer to : 1. A naturally occurring ...)