- 行业: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
The removal of a high proportion of sulfur from steel by injection of calcium or magnesium.
Industry:Mining
The removal of all dirt and unwanted disintegrated material from the quarry face. See: stripping
Industry:Mining
The removal of coal so close to the surface as to undermine the topsoil, resulting in devastation above ground. Usually engaged in by an independent operator working an old mine on a lease from a major corporation.
Industry:Mining
The removal of impurities by mechanical units as compared with hand picking. Broadly, mechanical cleaning may be subdivided into dry cleaning and wet cleaning.
Industry:Mining
The removal of loose dry particles by the wind, as along a sand-dune coast or in a desert; a form of wind erosion.
Industry:Mining
The removal of overburden required to expose and permit the minable grade of ore to be mined. The removal of overburden is known as stripping.
Industry:Mining
The removal of silica from a rock or magma by the breakdown of silicates and the resultant freeing of silica, or by reaction between a body of magma and the surrounding wall rock.
Industry:Mining
The removal of silicon and phosphorus from molten pig iron by running it into a Pernot furnace lined with iron oxides. Iron ore may also be added, and the bath is agitated by rotation for 5 to 8 min only. See: Krupp process
Industry:Mining
