slag utilization

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• coal utilization — Introduction        combustion of coal or its conversion into useful solid, gaseous, and liquid products. By far the most important use of coal is in combustion, mainly to provide heat to the boilers of electric power plants. Metallurgical coke… …   Universalium

• technology, history of — Introduction       the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …   Universalium

• Mobile incinerator — The role of incineration of waste and equipment used for it has changed radically in the recent years. While they were formerly notorious as pollutant spewing technical monsters in the eyes of citizens groups, nowadays, thermal waste treatment… …   Wikipedia

• coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …   Universalium

• International Space Station — ISS redirects here. For other uses, see ISS (disambiguation). International Space Station …   Wikipedia

• Electroslag welding — (ESW) is a highly productive, single pass welding process for thick (greater than 25mm up to about 300mm) materials in a vertical or close to vertical position. (ESW) is similar to electrogas welding, but the main difference is the arc starts in… …   Wikipedia

• Iron Age — This article is about the historical / archaeological period known as the Iron Age. For the mythological Iron Age, see Ages of Man. Iron Age This box: view · talk · …   Wikipedia

• Zinc — This article is about the metallic element. For other uses, see Zinc (disambiguation). copper ← zinc → gallium ↑ Zn ↓ Cd …   Wikipedia

• Environmental effects of coal — There are a number of adverse environmental effects of coal mining and burning.These effects include: * release of carbon dioxide and methane, both of which are greenhouse gases causing climate change and global warming according to the IPCC.… …   Wikipedia

• coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

• GINZBERG, ELI — (1911–2002), U.S. economist and social planner. Ginzberg was born in New York City, the son of rabbinic   scholar louis ginzberg . He studied economics at Columbia University and in 1935 was appointed to the Columbia School of Business, where he… …   Encyclopedia of Judaism