Iron ore — Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the … Wikipedia
Blast furnace gas — (BFG)[1] is a by product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron. It has a very low heating value, about 93 BTU/cubic foot, because it consists of about 60 percent nitrogen, 18 20% carbon… … Wikipedia
Blast furnace — Blast Blast (bl[.a]st), n. [AS. bl[=ae]st a puff of wind, a blowing; akin to Icel. bl[=a]str, OHG. bl[=a]st, and fr. a verb akin to Icel. bl[=a]sa to blow, OHG. bl[^a]san, Goth. bl[=e]san (in comp.); all prob. from the same root as E. blow. See… … The Collaborative International Dictionary of English
blast furnace — n. a towerlike smelting furnace for separating metal, esp. iron, from the impurities in the ore: a blast of air is forced into the furnace from below to produce the intense heat needed … English World dictionary
blast furnace — blast furnaces N COUNT A blast furnace is a large structure in which iron ore is heated under pressure so that it melts and the pure iron metal separates out and can be collected … English dictionary
Blast furnace — A blast furnace is a type of metallurgical furnace used for smelting to produce metals, generally iron. In a blast furnace, fuel and ore are continuously supplied through the top of the furnace, while air (sometimes with oxygen enrichment) is… … Wikipedia
blast furnace — a large vertical furnace for smelting iron from ore, using coke as fuel: designed so as to direct a continuous blast of air through the fuel in order to obtain a high rate of combustion. [1700 10] * * * Vertical shaft furnace that produces liquid … Universalium
blast furnace — noun a furnace for smelting of iron from iron oxide ores; combustion is intensified by a blast of air • Hypernyms: ↑furnace • Part Holonyms: ↑steel mill, ↑steelworks, ↑steel plant, ↑steel factory * * * noun, pl ⋯ naces [count] … Useful english dictionary
blast furnace — noun a furnace in which iron ore is smelted to iron; the process being intensified by a blast of hot air … Wiktionary
Blast-furnace gas — The waste combustible gas generated in a blast furnace when iron ore is being reduced with coke to metallic iron. It is commonly used as a fuel within steel works. U.S. Dept. of Energy, Energy Information Administration s Energy Glossary … Energy terms
blast furnace — noun Date: 1706 a furnace in which combustion is forced by a current of air under pressure; especially one for the reduction of iron ore … New Collegiate Dictionary
