- Отрасли: 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 ...
A basic copper nitrate containing 52.9% copper. Crystallization, orthorhombic. Cleavage, yields flexible laminae. Tenacity, fragile, and sectile. Mohs hardness, 2; sp gr, 3.426; luster, vitreous, brilliant; color, deep emerald-green; streak, light green; transparent; soluble in dilute acids. From Jerome, Arizona.
Industry:Mining
A basic flowsheet indicating the main operational steps within a plant, the movement of the various materials between the steps, and the final products obtained, and often also the quantities of material with which the plant must be capable of dealing at various points.
Industry:Mining
A basic open-hearth process using charges so low in sulfur and phosphorus that they could be used in the acid process; the pig iron charged is hematite iron. The charge contains all the elements required to give the required analysis, plus the usual margin of carbon. The charge contains about 0.5% silicon and a maximum amount of manganese, to ensure correct conditions in the bath.
Industry:Mining
A basin on top of a mold to receive the molten metal before it enters the sprue or downgate.
Industry:Mining
A basket-type jig, the basket being suspended in a tank of water. Pulsations are effected by moving this basket upward and downward by means of eccentrics. Has been used extensively in the preparation of anthracite of all sizes and, to a lesser extent, of bituminous coal.
Industry:Mining
A bath, such as of mercury or tin, employed for chemical processes requiring high temperatures.
Industry:Mining
A battery to close the lower part of a chute acting as a check to the flow of coal, and as a stopping to keep air in the breasts.
Industry:Mining
