lead bullion
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lead bullion — ˈled noun : impure lead containing gold and silver … Useful english dictionary
lead processing — Introduction preparation of the ore for use in various products. Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… … Universalium
bullion — noun Etymology: Middle English, from Anglo French billion, bullion melting house, bullion, probably blend of Middle French bille ingot, piece of money (from Old French, log) and Anglo French *bulliun, buillun cauldron, from Old French boillon… … New Collegiate Dictionary
crude lead bullion — Смотри Веркблей … Энциклопедический словарь по металлургии
work lead — noun : lead bullion … Useful english dictionary
base bullion — noun Etymology: base (IV) : crude lead containing silver or gold and silver * * * Metall. smelted lead containing impurities, as gold, silver, or zinc, that are later removed. * * * base bullion, a base metal with appreciable amounts of a… … Useful english dictionary
base bullion — Metall. smelted lead containing impurities, as gold, silver, or zinc, that are later removed. * * * … Universalium
silver processing — Introduction preparation of the ore for use in various products. Silver has long been valued for its white metallic lustre, its ability to be readily worked, and its resistance to the corrosive effects of moisture and oxygen. The… … Universalium
Bismuth — (pronEng|ˈbɪzməθ) is a chemical element that has the symbol Bi and atomic number 83. This heavy, brittle, white crystalline trivalent poor metal has a pink tinge and chemically resembles arsenic and antimony. Of all the metals, it is the most… … Wikipedia
nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… … Universalium
Zinc smelting — is the process of converting zinc concentrates (ores that contain zinc) into pure zinc. The most common zinc concentrate processed is zinc sulfide,Citation | title = Compilation of Air Pollutant Emission Factors | publisher = U.S. Environmental… … Wikipedia
