- Industry: 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 selective removal of the metal values from a mineral by causing a suitable solvent or leaching agent to seep into and through a mass or pile of material containing the desired mineral.
Industry:Mining
The sensitivity of an explosive to initiation by a detonator. An explosive material is considered to be cap sensitive if it detonates with a No. 8 strength test detonator.
Industry:Mining
The separating low wall between the fireplace and the hearth of a reverberatory furnace.
Industry:Mining
The separation of a fault as measured at right angles to the fault plane.
Industry:Mining
The separation of gold from silver by dissolving out the latter with nitric acid. It requires not less than three-fourths of silver in the alloy, whence the name, which is also applied to the alloying of gold with silver, if necessary, to prepare it for this method of parting. See: parting
Industry:Mining
The separation of gold or silver by heating it to a high temperature with a large amount of granulated lead and a little borax, in a scorifier. The gold or silver dissolves in the molten lead, which sinks to the bottom of the vessel, while the impurities form a slag with the lead oxide that is produced.
Industry:Mining
The separation of minerals and metals by heat. The method is used, e.g., to remove impurities from rock salt. The crude salt is first exposed to radiant heat. The impurities absorb the heat and become warm, while the rock salt transmits the radiant heat and remains cool. The warm, impure particles adhere slightly to a belt covered with heatsensitive resin, while the salt remains free. Separation takes place at the end of the belt. The cool salt is thrown into one container, while the adhering impurities drop directly into another.
Industry:Mining
The separation of powder into particle-size fractions by means of a gas stream of controlled velocity.
Industry:Mining
The separation of solids from a washery slurry so that the water can be returned to the plant and used continuously.
Industry:Mining
The separation size at which equal portions of the feed material are wrongly placed in each of two products of a sizing operation.
Industry:Mining
