公开(公告)号：EP1726689A4

公开(公告)日：2007-07-25

申请号：EP05704329

申请日：2005-02-01

申请人： SUMITOMO TITANIUM CORP

发明人： OGASAWARA TADASHI ,  YAMAGUCHI MAKOTO ,  HORI MASAHIKO ,  UENISHI TORU ,  DAKESHITA KATSUNORI

IPC分类号： C25C3/26 ,  C22B5/04 ,  C22B9/10 ,  C22B34/12 ,  C25C3/28 ,  C25C7/06

CPC分类号： C25C3/28 ,  C22B5/04 ,  C22B34/1268 ,  C22B34/129

摘要： A process for producing a high-purity metallic Ti or Ti alloy, comprising, while retaining a molten salt containing CaCl2 and having Ca fused therein in reaction vessel (1), electrolyzing the molten salt of the reaction vessel and feeding a metal chloride containing TiCl4 into the molten salt so as to react with any Ca generated on the negative electrode side by the electrolysis to thereby produce granular Ti or Ti alloy in the molten salt. Further, when the reaction vessel is fitted with diaphragm (4) adapted to, while permitting circulation of the molten salt in the reaction vessel, partition the interior of the reaction vessel into the positive electrode (2) side and the negative electrode (3) side and block the transfer of Ca formed on the negative electrode side of the reaction vessel to the positive electrode side, any back reaction by Ca can be effectively suppressed. Still further, when a conductive porous material is used as the negative electrode, enhanced productivity can be realized.