gold refining

См. также в других словарях:

• Refining (metallurgy) — Refining (as in non metallurgical uses) consists of purifying an impure material, in this case a metal. It is to be distinguished from other processes such as smelting and calcining in that those two involve a chemical change to the raw material …   Wikipedia

• Gold mining in Alaska — Gold mining in Alaska, a state of the United States, has been a major industry and impetus for exploration and settlement since a few years after the United States acquired the territory from Russia. Russian explorers discovered placer gold in… …   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 — /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 rush — a large scale and hasty movement of people to a region where gold has been discovered, as to California in 1849. [1875 80, Amer.] * * * Rapid influx of fortune seekers to the site of newly discovered gold deposits. The first major gold strike… …   Universalium

• Refining — Refine Re*fine (r?*f?n ), v. t. [imp. & p. p. {Refined} ( find ); p. pr. & vb. n. {Refining}.] [Pref. re + fine to make fine: cf. F. raffiner.] 1. To reduce to a fine, unmixed, or pure state; to free from impurities; to free from dross or alloy;… …   The Collaborative International Dictionary of English

• Eldorado Mining and Refining Limited — The Eldorado Mining and Refining Limited company was originally organized in 1927 as Eldorado Gold Mines Limited to develop a gold mine in Manitoba. Its president Gilbert LaBine later found radioactive deposits at Great Bear Lake, Northwest… …   Wikipedia

• Balbach Smelting & Refining Company — (also known as Balbach and Sons Refining and Smelting Company) was a smelting plant in Newark, New Jersey operating in the late 19th and early 20th centuries. It was the first commercial electrolytic refinery in the United States.… …   Wikipedia

• Moscow gold — Northern façade of the building of the Bank of Spain in Madrid. Most of the gold reserves held inside until 1936 were sent to the Soviet Union during the Spanish Civil War. The term Moscow Gold (Spanish: Oro de Moscú), or alternatively, Gold of… …   Wikipedia