MAGNESIUM-REDUCED METHOD OF PRODUCTION OF SPONGE ZIRCONIUM AND DEVICE FOR REALIZATION OF THIS METHOD Russian patent published in 2005 - IPC

FIELD: metallurgy of zirconium.

SUBSTANCE: magnesium-reduced method of production of sponge zirconium includes preparation of magnesium for process, reduction of zirconium from its tetrachloride in presence of magnesium concentrate and its chloride of previous processes, obtaining reaction mass, cleaning this mass by separation in vacuum at precipitation of magnesium condensate and its chloride in condenser. For reduction, use is made of condenser filled with magnesium condensate and its chloride after separation process at addition of refined magnesium in form of ingots before precipitation of magnesium condensate and its chloride. Addition of refined magnesium may be performed by pouring its melt on magnesium condensate and its chloride before reduction of zirconium. Device proposed for realization of this method includes apparatus placed in vacuum separation furnace and filled with reaction mass and condenser interconnected by means of heated vapor line fitted with valve. Condenser is made in form of retort closed with cover with reaction sleeve placed inside it. Reaction sleeve is closed with shield of bottom part of cover sunken in it.

EFFECT: reduced specific consumption of magnesium per ton of sponge zirconium; reduced labor consumption at servicing the device.

4 cl, 1 dwg, 2 ex