| 摘要 |
PROBLEM TO BE SOLVED: To increase a yield upon the production of high purity sponge titanium by a Kroll process. SOLUTION: Sponge titanium stuck to the surface of a gate 2 in a reduction reaction vessel 1 by the last time reaction is physically removed upon next reaction. Preferably, physical removal is performed regarding sponge titanium stuck to the inside face of the reduction reaction vessel 1 together with the sponge titanium stuck to the surface of the rooster 2. COPYRIGHT: (C)2007,JPO&INPIT
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