matte smelting

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• smelting — Process by which a metal is obtained from its ore, either as the element or as a simple compound, usually by heating beyond the melting point, ordinarily in the presence of reducing agents such as coke or oxidizing agents such as air (see… …   Universalium

• Matte — may refer to: In film: Matte (filmmaking), filmmaking and video production technology Matte painting, a process of creating sets used in film and video Matte box, a camera accessory for controlling lens glare Open matte, a filming technique that… …   Wikipedia

• matte — matte1 [mat] n. [Fr < dial. mate, a lump, prob. ult. < L matta, MAT1] an impure mixture of sulfides that is produced in smelting the sulfide ores of copper, nickel, lead, etc. matte2 [mat] n. [var. of MAT2] a dull surface or finish, often… …   English World dictionary

• Smelting — For other uses, see Smelt (disambiguation). Electric phosphate smelting furnace in a TVA chemical plant (1942) Smelting is a form of extractive metallurgy; its main use is to produce a metal from its ore. This includes iron extraction from …   Wikipedia

• matte — matte1 /mat/, adj., n., v., matted, matting. adj. 1. having a dull or lusterless surface: matte paint; a matte complexion; a photograph with a matte finish. n. 2. a dull or dead surface, often slightly roughened, as on metals, paint, paper, or… …   Universalium

• Matte (metallurgy) — For other uses, see Matte (disambiguation). Matte is a term used in the field of pyrometallurgy given to the molten metal sulfide phases typically formed during smelting of copper, nickel, and other base metals. Typically, a matte is the phase in …   Wikipedia

• matte — I. or matt variant of mat III 1 II. adjective also mat or matt Etymology: French mat, from Old French, faded, defeated Date: circa 1648 lacking or deprived of luster or gloss: as a. having a usually smooth even surface free from shine or… …   New Collegiate Dictionary

• matte — or mat III or matt [[t]mæt[/t]] adj. n. v. mat•ted or matt•ed, mat•ting or matt•ing 1) cvb having a dull or lusterless surface: matte paint[/ex] 2) cvb a dull surface, as on metals, paint, paper, or glass 3) cvb a tool for producing such a… …   From formal English to slang

• matte — matte1 [mat] noun an impure product of the smelting of sulphide ores, especially those of copper or nickel. Origin C19: from Fr. (in OFr. meaning curds ), feminine of mat matt . matte2 [mat] noun a mask used to obscure part of an image in a film… …   English new terms dictionary

• matte — I. /mæt/ (say mat) noun an unfinished metallic product of the smelting of certain sulphide ores, especially those of copper. {French. See matt} II. /mæt/ (say mat) adjective, noun, verb (t) US → …  

• matte — 1. n. an impure product of the smelting of sulphide ores, esp. those of copper or nickel. Etymology: F 2. n. Cinematog. a mask to obscure part of an image and allow another image to be superimposed, giving a combined effect. Etymology: F …   Useful english dictionary