Ways of smelting titanium
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Magnetermic method of smelting
Chlorination of TiO 2, production of TiCl 4 and its reduction by magnesium. TiCl 4, before reduction, is thoroughly purified by repeated fractional distillation with simultaneous chemical purification. The reduction of TiCl 4 is carried out in special reactors in an argon atmosphere at a temperature of 700−950 ° C. The titanium sponge is then purified from the magnesium impurity by vacuum distillation or by leaching. The second method is cheaper, but leads to saturation of the titanium sponge with hydrogen. Hydrogen is removed during the subsequent melting of the sponge in a vacuum.
Electrolysis method of smelting
With the help of an electric current, TiO 2 or TiCl 4 (dissolved in molten salts of chlorides and fluorides of alkali and alkaline earth metals, decompose at 700−800 ° in an atmosphere of inert gases.) Supplier Auglob offers to buy titanium rolling at a bargain price. a segment of hire.
Hydride-calcium method
TiH 2 decomposes on Ti and H 2 by heating in a high vacuum. The resulting CaO is washed with dilute acids. The first three methods are used to produce technical titanium.
Iodide method
It is based on thermal dissociation of TiJ 4 iodide, which is preliminarily prepared by reaction of low-purity metallic titanium with iodine vapor. Iodide titanium contains up to 0.05% impurities, mostly metallic, having a tensile strength of 215 to 255 MPa; yield strength 2120 — 170 MPa; the elongation is 50−60%; transverse narrowing 70 — 80%.
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