- 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 ...
Separating grains of minerals by a concentration method operating by virtue of the differences in density of various minerals; the greater the difference in density between two minerals, the more easily they can be separated by gravity methods. The laws of free and hindered settling are important in the theory of gravity concentration.
Industry:Mining
Separation by alternating current that depends on magnetic properties of coercive force and remanence.
Industry:Mining
Separation from a magma of a gaseous phase that moves relative to the magma and releases dissolved substances, usually in the upper levels of the magma, when it enters an area of reduced pressure.
Industry:Mining
Separation of components of mixture into zones, one or more of which can be identified by color, etc.: (1) by adsorption column, adsorbing from solute in a tube packed with cellulose, alumina, lime, etc.; (2) by electrochromatography, passing electricity across a column or paper strip down which solvent mixture is flowing, causing migration to the side of a flow line; (3) by electrophoresis, using electric current to aid migration; and (4) by paper partition, separation into bands as suitable solvent flows past a drop of solution, which contains compounds (qualitative and quantitative analysis).
Industry:Mining
Separation of ions by filtering them through the intermediately sized lattice of a suitable aluminosilicate zeolite, chosen to permit passage only of undersized ions through its rigid structure.
Industry:Mining
Separation of mineral particles, with the aid of water or air, according to the differences in their specific gravities.
Industry:Mining
Separation of ore particles by allowing them to settle through, or float above, a fluid of intermediate density.
Industry:Mining
