high-grade copper matte

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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

• copper processing — Introduction  use of smelting or leaching, usually followed by electrolytic refining or recovery, to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of copper and of its… …   Universalium

• Mopani Copper Mine — Mopani Copper Mines Plc Type Public Company Industry Mining, Materials Founded N/A Headquarters Kitwe, Zambia Key people Emmanuel B Mutati, CEO …   Wikipedia

• metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …   Universalium

• nickel processing — Introduction       preparation of the metal for use in various products.       Although it is best known for its use in coinage, nickel (Ni) has become much more important for its many industrial applications, which owe their importance to a… …   Universalium

• tin processing — Introduction       preparation of the ore for use in various products.       Tin (Sn) is a relatively soft and ductile metal with a silvery white colour. It has a density of 7.29 grams per cubic centimetre, a low melting point of 231.88° C… …   Universalium

• Coins of the pound sterling — The Royal Shield reverse designs, introduced in 2008 (£2 coin is not shown) …   Wikipedia

• optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …   Universalium

• Penny (United States coin) — Cent (Penny) United States Value 0.01 of a U.S. dollar Mass  2.5 g  (0.080 troy oz) Diameter  19.05 mm  (0.750 in) Thickness …   Wikipedia

• 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

• Pu-erh tea — Pu erh, Pu er tea, Puer tea or Bolay tea is a type of tea made from a large leaf variety of the tea plant Camellia sinensis and named after Pu er county near Simao, Yunnan, China. Pu erh tea can be purchased as either raw/green (sheng) or… …   Wikipedia