refine copper
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Copper extraction techniques — This article is about historical production methods. For modern methods, see Flash smelting. The Chino open pit copper mine in New Mexico … Wikipedia
Kennecott Utah Copper — Corporation (KUCC), a division of Rio Tinto Group, is a mining, smelting, and refining company. Its corporate headquarters are located in Magna, Utah, USA. Kennecott operates one of the largest open pit copper mines in the world in Bingham Canyon … Wikipedia
Calumet and Hecla Mining Company — The Calumet and Hecla Mining Company was a major copper mining company based in the Michigan Copper Country. In the 1800s, the company paid out more than $72 million in shareholder dividends, more than any other mining company in the United… … Wikipedia
El Paso, Texas — El Paso redirects here. For other uses, see El Paso (disambiguation). City of El Paso City From top left to bottom right: Downtown El Pas … Wikipedia
Athlon — Infobox Computer Hardware Cpu name = Athlon caption = AMD Athlon logo produced start = mid 1999 produced end = 2005 slowest = 500 | slow unit = MHz fastest = 2.33 | fast unit = GHz fsb slowest = 100 | fsb slow unit = MHz fsb fastest = 200 | fsb… … Wikipedia
steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying … Universalium
Repoussé and chasing — Chased and chasing redirect here. For other uses, see Chase (disambiguation). The Great Dish, or Great Plate of Bacchus, from the Roman Mildenhall Treasure … Wikipedia
Blacksmith — For other uses, see Blacksmith (disambiguation). Blacksmith A blacksmith at work Occupation … Wikipedia
Annealing (metallurgy) — Annealing, in metallurgy and materials science, is a heat treatment wherein a material is altered, causing changes in its properties such as strength and hardness. It is a process that produces conditions by heating to above the recrystallization … Wikipedia
X-ray crystallography — can locate every atom in a zeolite, an aluminosilicate with many important applications, such as water purification. X ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X rays strikes a… … Wikipedia
Brazing — This article is about the metal joining process. For the cooking technique, see braising. Brazing practice Brazing is a metal joining process whereby a filler metal is heated above and distributed between two or more close fitting parts by… … Wikipedia
