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United States Bureau of Mines
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 ...
An unsaturated fatty acid, CH<sub>3</sub>(CH<sub>2</sub>)<sub>4</sub>CH &#61; CH(CH<sub>2</sub>)<sub>7</sub>COOH , used as a collector in the flotation process.
Industry:Mining
An unsaturated fatty acid, CH<sub>3</sub>CH<sub>2</sub>CH &#61; CH CH<sub>2</sub>CH &#61; CH CH<sub>2</sub>CH &#61; CH(CH<sub>2</sub>)<sub>7</sub>COOH .
Industry:Mining
An unsheathed explosive incorporating cooling agents, which is equivalent in safety (relating to the ignition of methane-air mixture) on a charge-weight basis to an explosive having a sheath of cooling agents around it. Abbrev. for equivalent-to-sheathed explosive.
Industry:Mining
An unstable relict enveloped by a crystal or by a reaction shell which revented its reaction with the other constituents of the rock.
Industry:Mining
An upthrust propeller, stirring pulp vigorously in a cylindrical tank, used in leach agitation of minerals.
Industry:Mining
An upward buckling of the superficial layers of the ground due either to changes in volume brought about by pedogenic processes or to some other nontectonic cause.
Industry:Mining
An upwardly convex flexure in which one limb dips gently toward the apex and the other limb dips more steeply away from it. Compare: unicline; monocline.
Industry:Mining
An urtite composed chiefly of sodalite, with smaller amounts of acmite, eudialyte, and alkali feldspar.
Industry:Mining
An X-ray spectrometer employing a crystal grating.
Industry:Mining
Analysis in which the coal sample passes first to a conditioning unit, which dries and grinds it, then to an X-ray analysis unit. The analysis is based on the difference in the reflection of X-rays by the combustible and noncombustible components of the sample. The reflection is compared photoelectrically with a reference sample.
Industry:Mining