[00062124]鈦制備方法

項目簡介：

This invention relates to the production of titanium metal and more particularly to the manufacture of ductile titanium through the reduction of oxygen-free com pounds of titanium by metallic reducing agents. Titanium compounds such as the oxides and halides can be reduced by strong reducing agents such as magnesium, calcium, lithium, and the like, as well as by car bon. The latter has been proposed to remove oxygen from titanium oxygen compounds, but the reduction product has always contained carbon or oxygen or both. Such a product has not found use as a structural material be cause of inherent deficiencies, the most important of which is lack of ductility. A solution of magnesium in zinc containing 8 % magnesium was placed in a closed graphite vessel provided with exterior cooling means for controlling the temperature of its walls. Titanium chloride vapor was introduced into the vessel for reaction through a nickel tube near the bottom thereof. The nickel tube was cooled by means of a circulating salt bath with temperature controlled at approximately 450 °C. Argon gas was led through the TiCl₄ inlet to hold it open during periods when the TiCl₄ vapor feed was interrupted.

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