Mineral Processing 5 min read
Blast furnace
Blast furnace, a vertical shaft furnace that produces liquid metals by the reaction of a flow of air introduced under pressure into the bottom…
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Mineral Processing 2 min read
Surface mining
Surface mining, method of extracting minerals near the surface of the Earth. The three most common types of surface mining…
Mineral Processing 2 min read
Hematite
Hematite, also spelled haematite, heavy and relatively hard oxide mineral, ferric oxide (Fe2O3), that constitutes the most important iron ore because of its high iron content…
Mineral Processing 5 min read
Beneficiation
Beneficiation, removal of worthless particles from pulverized metal ore. Ores Iron ores occur in igneous, metamorphic (transformed), or sedimentary rocks in…
Mineral Processing 6 min read
Mineral processing
Mineral processing, art of treating crude ores and mineral products in order to separate the valuable minerals from the waste rock, or…
Material Science 6 min read
Natural gas
Natural gas, colourless highly flammable gaseous hydrocarbon consisting primarily of methane and ethane. It is a type of petroleum that commonly occurs in association with crude oil. A fossil…
Material Science 3 min read
Sintering
Sintering, the welding together of small particles of metal by applying heat below the melting point. The process may be used in steel manufacturing—to form…
Material Science 2 min read
Synthetic diamond
Synthetic diamond, man-made diamond that is usually produced by subjecting graphite to very high temperatures and pressures. Synthetic diamond resembles natural diamond in most fundamental properties,…
Material Science 2 min read
Fracture
Fracture, in mineralogy, appearance of a surface broken in directions other than along cleavage planes. There are several kinds of fractures:…
Material Science 6 min read
Cleavage
Cleavage, tendency of a crystalline substance to split into fragments bounded by plane surfaces. Although cleavage surfaces are seldom as flat as…
