- 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 ...
The process for the production of iron and steel from medium-grade ores, such as those containing 44% to 57% iron and having a high silicon content. The process involves a continuous reduction and is carried out in a revolving tube furnace, which is designed for the production of iron. The iron is reduced into a sponge and then converted into lowcarbon metallic grains, which are called pellets.
Industry:Mining
The process for the removal of moisture from the blast of an iron blast furnace by reducing the temperature of the blast current so that the moisture is deposited as snow.
Industry:Mining
The process in coalification that results in the formation of vitrain.
Industry:Mining
The process in which a portion (sample of ore) is selected in such a way, that its composition will represent the average composition of the entire bulk of ore. Such a selected portion is a sample, and the art of properly selecting such a sample is called sampling.
Industry:Mining
The process in which auriferous ores are first roasted to oxidize the base metals; then saturated with chlorine gas; and finally treated with water, which removes the soluble chloride of gold, to be subsequently precipitated and melted into bars.
Industry:Mining
The process involves heating oxidized copper ore with a reducing agent and a halide salt at about 700 degrees C to produce metallic copper, which may then be recovered by ammonia leaching or by flotation with conventional copper sulfide collectors.
Industry:Mining
The process of anodically dissolving a metal from an impure anode and depositing it in a purer state at the cathode.
Industry:Mining
The process of causing a high explosive to detonate. The initiation of an explosive charge requires an initiating point, which is usually a primer and electric detonator, or a primer and a detonating cord or fuse.
Industry:Mining
The process of changing tuyeres, plates, monkey, etc., at blast furnaces.
Industry:Mining
The process of cold working or drawing a sheet of strip metal, by means of dies, into shapes involving considerable plastic distortion of the metal; e.g., automobile mudguards, electrical fittings, etc.
Industry:Mining
