- Branża: Mining
- Number of terms: 33118
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- 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 checker arrangement for hot-blast stoves. The gas used is only partially cleaned and may contain from 0.5 to 1.5 g of dust per cubic meter of gas. The top zone of the checkers is formed of straight-walled vertical passages, and the middle zone of vertical passages in each of which two opposite walls are continuously curved and the other two are straight, while the bottom zone is formed of vertical passages in each of which all four walls are continuously curved.
Industry:Mining
A chemical added to an explosive during manufacture to suppress or inhibit the flame produced in blasting.
Industry:Mining
A chemical classification of igneous rocks (into the four main types--acid, intermediate, basic, and ultrabasic) based on silica content.
Industry:Mining
A chemical combination of ordinary cotton fiber with nitric acid. It is explosive, highly inflammable, and in certain degrees of nitration, soluble in nitroglycerin.
Industry:Mining
A chemical compound consisting of a dissolved substance and its solvent, e.g. hydrated calcium sulfate.
Industry:Mining
A chemical compound that may crystallize in one of three different crystal structures.
Industry:Mining
A chemical compound used with a frothing agent. Increases greatly the recovery in a flotation process.
Industry:Mining
A chemical defect wherein one ion replaces another in a crystal structure. Substitution may be partial; e.g., iron for zinc in sphalerite up to 30%, or complete; e.g., manganese and iron in the series rhodochrosite-siderite.
Industry:Mining
A chemical element (as boron, carbon, phosphorus, nitrogen, oxygen, sulfur, chlorine, or argon) that is not classed as a metal because it does not exhibit most of the typical metallic properties. An element that, in general, is characterized chemically by the ability to form anions, acidic oxides and acids, and stable compounds with hydrogen.
Industry:Mining
