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Mineral mining

The extraction of valuable minerals or other geological materials from the earth for economic interests.

Contributors in Mineral mining

Mineral mining

catalytic oxidation

Mining; General mining

A process that converts the incompletely burned hydrocarbons present in fuel exhaust into harmless gases. It involves burning up the fuel remnants with the aid of catalysts-- chemical agents, such as ...

gassing of copper

Mining; General mining

A process that denotes the brittleness produced when copper containing oxide is heated in an atmosphere containing hydrogen. The hydrogen diffuses into the metal and 1326 combines with oxygen, ...

continuous haulage

Mining; General mining

A process that is designed to move the mined product (usually coal) from a continuous mining machine to a mine belt conveyor system as a continuous flow. One end of the continuous haulage system (the ...

otisca process

Mining; General mining

A process that uses an inert heavy liquid with a specific gravity between that of coal and free mineral matter to separate coarse or fine-size coal in a static bath or cyclone separator.

Hybinette process

Mining; General mining

A process used for refining of crude nickel anodes. These are placed in reinforced concrete tanks lined with asphalt. The nickel anodes are dissolved electrochemically and the impurities, such as ...

heap leaching

Mining; General mining

A process used for the recovery of copper, uranium, and precious metals from weathered low-grade ore. The crushed material is laid on a slightly sloping, impervious pad and uniformly leached by the ...

Weldon process

Mining; General mining

A process used formerly for the recovery of manganese dioxide in making chlorine from hydrochloric acid in a stoneware still, by adding lime to the still liquor and oxidizing with air to precipitate ...

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