- 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 ...
Slang for either natural gas or a gasoline contaminated with odor-causing sulfur compounds. In natural gas the contaminant is usually hydrogen sulfide, which can be removed by passing the gas mixture through carbonate solutions containing special metal or organic activators. In gasolines, the sour contaminents are usually mercaptans, which are removed in the doctor treatment or by ethylene oxide with a phenolic catalyst. The improved gas or gasoline is known as sweet gas.
Industry:Mining
Slanting props placed at the end of a drift set to keep the timbers steady when blasts go off.
Industry:Mining
Slate in which blotches of red or purplish colors appear on a generally green surface; ascribed chiefly to different forms of iron oxide.
Industry:Mining
Slate principally of the mica variety. It should have high mechanical and dielectric strength, be readily machinable, and have low porosity.
Industry:Mining
