| 摘要 |
FIELD: non-ferrous metallurgy; production of spongy titanium by magnesium-thermal reduction of titanium tetrachloride; cleaning titanium from magnesium and its chloride by vacuum separation. ^ SUBSTANCE: proposed method includes heating reaction mass, forming vacuum in apparatus, sublimation of magnesium and magnesium chloride vapors and their condensation of retort-condenser, cooling the retort-condenser by water. First, retort-condenser is cooled with water passed through lower branch pipe of water-cooled jacket of caisson at flow rate of 1-2 t/m2/h; as soon temperature of water exceeds 950°C, water to water-cooled is fed through additional branch pipe at flow rate increased to 5-10 t/m2/h; water is fed through holes of water-cooled jacket to surface of retort-condenser. At final stage of distillation, supply of water through holes of water-cooled jacket is discontinued and water is again fed at flow rate of 1-2 t/m2/h. Besides that, water is discharged through upper branch pipe of water-cooled jacket and through branch pipe fitted on caisson. Device proposed for realization of this method includes retort-reactor with bottom branch pipe and false bottom closed with cover with central branch pipe and low-melting plug, vacuum drainage, retort-condenser with bottom branch pipe and false bottom, caisson with water-cooled jacket and branch pipes for supply and discharge of water, water distributor and heat shield. Novelty of invention consists in availability of holes in inner surface of water-cooled jacket; these holes are located at level of bottom branch pipe of retort-condenser; it is provided with additional upper branch pipe for additional delivery of water which is located under holes of caisson water-cooled jacket. Water-cooled jacket is continuous at the top and its height is equal to 2/3-3/4 of caisson height. ^ EFFECT: increased productivity of process; reduction of forming vapor and its emissions in shop. ^ 3 cl, 1 dwg |
