ore washing

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• Ore dressing — is one of the principal processes in the work of mining. It consists of separating economically valuable minerals from those with little or no value, or of separating valuable minerals from each other, so that they may be further processed, for… …   Wikipedia

• Washing — Wash Wash (w[o^]sh), v. t. [imp. & p. p. {Washed}; p. pr. & vb. n. {Washing}.] [OE. waschen, AS. wascan; akin to D. wasschen, G. waschen, OHG. wascan, Icel. & Sw. vaska, Dan. vaske, and perhaps to E. water. [root]150.] 1. To cleanse by ablution,… …   The Collaborative International Dictionary of English

• ore dressing — noun crushing and separating ore into valuable substances or waste by any of a variety of techniques • Syn: ↑mineral extraction, ↑mineral processing, ↑mineral dressing, ↑ore processing, ↑beneficiation • Derivationally related forms: ↑beneficiate …   Useful english dictionary

• 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

• Roman technology — is the engineering practice which supported Roman civilization and made the expansion of Roman commerce and Roman military possible over nearly a thousand years. The Roman Empire had the most advanced set of technology of their time, some of… …   Wikipedia

• Gold cyanidation — (also known as the cyanide process or the MacArthur Forrest process) is a metallurgical technique for extracting gold from low grade ore by converting the gold to a water soluble coordination complex. It is the most commonly used process for gold …   Wikipedia

• Scotia, Pennsylvania — Scotia was a village in Patton Township, Centre County, Pennsylvania, at coord|40|47|59|N|77|56|46|W|region:US type:city|display=inline,title. Although the community was called Scotia, the name of the local post office was Benore ( Ben being the… …   Wikipedia

• Grünhain-Beierfeld — Infobox Ort in Deutschland Art = Stadt image photo = Wappen = Wappen Gruenhain Beierfeld.png lat deg = 50 |lat min = 34 lon deg = 12 |lon min = 48 Lageplan = Bundesland = Sachsen Regierungsbezirk = Chemnitz Landkreis = Erzgebirgskreis Höhe =… …   Wikipedia

• Limp — Limp, n. (Ore Washing) A scraper for removing poor ore or refuse from the sieve. [1913 Webster] …   The Collaborative International Dictionary of English

• Buchanan — /byooh kan euhn, beuh /, n. James, 1791 1868, 15th president of the U.S. 1857 61. * * * (as used in expressions) Buchanan George Buchanan James Duke James Buchanan * * * ▪ Liberia also called  Grand Bassa        town, Atlantic Ocean port, central …   Universalium

• Derbyshire lead mining history — Goodluck Mine in Via Gellia. This article details some of the history of lead mining in Derbyshire, England. Contents 1 …   Wikipedia