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Tungsten compounds are often used as industrial catalysts. Its largest use is in tungsten carbide, a wear-resistant metal used in metalworking, mining, and construction. [22] About 50% of tungsten is used in tungsten carbide, with the remaining major use being alloys and steels: less than 10% is used other compounds. [23]
tungsten Used for several industrial applications, tungsten is mostly found in the central east and north-east of the country, with assessed deposits in the south and west. URANIUM
Scheelite is widely used in phosphors, [12] particularly in scintillators for X-ray and gamma-ray detection. [13] It is also utilized in fluorescent lighting systems for its ability to convert ultraviolet light into visible light. [14] In some cathode ray tubes (CRTs), calcium tungstate (Scheelite) is used as a phosphorescent screen material. [15]
Tungsten ore is a rock from which the element tungsten can be economically extracted. The ore minerals of tungsten include wolframite, scheelite, and ferberite. Tungsten is used for making many alloys. Tungsten ore deposits are predominantly magmatic or hydrothermal in origin and are associated with felsic igneous intrusions. [1]
Additionally in the 19th century tungsten sulfides were sparingly used as lubrication for machining. Wolframite is also used to make tungstic acid which is used in the textile industry. [14] A major modern day use of tungsten is as a catalyst for various chemical reactions. One such catalytic use of tungsten is as a hydrocracking catalyst which ...
The dominant use of sodium tungstate is as an intermediate in the extraction of tungsten from its ores, almost all of which are tungstates. [1] Otherwise sodium tungstate has only niche applications. In organic chemistry, sodium tungstate is used as catalyst for epoxidation of alkenes and oxidation of alcohols into aldehydes or ketones. It ...
Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering [7] for use in industrial machinery, engineering facilities, [8] molding blocks, [9] cutting tools, chisels, abrasives, armor ...
For the production of the tungsten heavy alloy, binder mixtures of nickel and iron or nickel and copper are widely used. The tungsten content of the alloy is normally above 90%. The diffusion of the binder elements into the tungsten grains is low even at the sintering temperatures and therefore the interior of the grains are pure tungsten. [18]