- gold ores
- Смотри золотые руды.
Энциклопедический словарь по металлургии. — М.: Интермет Инжиниринг. Главный редактор Н.П. Лякишев. 2000.
gold ores
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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
gold processing — Introduction preparation of the ore for use in various products. For thousands of years the word gold has connoted something of beauty or value. These images are derived from two properties of gold, its colour and its chemical stability.… … Universalium
Gold extraction — or recovery from its ores may require a combination of comminution, mineral processing, hydrometallurgical, and pyrometallurgical processes to be performed on the ore. [cite web url=http://geology.com/publications/getting gold/gold… … Wikipedia
Gold mining in Colorado — Gold mining in Colorado, a state of the United States, has been an industry since 1858, and played a key role in the establishment of the state of Colorado.Explorer Zebulon Pike heard a report of gold in South Park, present day Park County,… … Wikipedia
Gold mining in the United States — has taken place since the discovery of gold at the Reed farm in North Carolina in 1799.In 2006 the United States produced approximately 8.360 million troy ounces (260 tonnes) of gold, making it the second or third largest gold producing nation,… … Wikipedia
Gold chalcogenides — are compounds formed between gold and one of the chalcogens, elements from group 16 of the periodic table: oxygen, sulfur, selenium or tellurium.*Gold(III) oxide, Au2O3. decomposes into gold and oxygen above 160 °C. dissolves in concentrated… … Wikipedia
gold — /gohld/, n. 1. a precious yellow metallic element, highly malleable and ductile, and not subject to oxidation or corrosion. Symbol: Au; at. wt.: 196.967; at. no.: 79; sp. gr.: 19.3 at 20°C. 2. a quantity of gold coins: to pay in gold. 3. a… … Universalium
Gold — /gohld, gawld/, n. Nanay. /gohld/, n. 1. Herbert, born 1924, U.S. novelist and short story writer. 2. Thomas, born 1920, U.S. astronomer, born in Austria: formulated the steady state theory of the universe. * * * I Metallic chemical element, one… … Universalium
Gold — This article is about the metal. For the color, see Gold (color). For other uses, see Gold (disambiguation). platinum ← gold → mercury … Wikipedia
Gold — Aurum * * * Gold [gɔlt], das; es: wertvolles Edelmetall von rotgelber Farbe: 24 karätiges Gold; sie trägt nur Schmuck aus reinem Gold. Zus.: Barrengold. * * * Gọld 〈n. 11; unz.; chem. 〉 1. gelbglänzendes Edelmetall, chem. Element, Ordnungszahl… … Universal-Lexikon
