发明公开
EP1873265A1 METHOD OF HIGH-MELTING-POINT METAL SEPARATION AND RECOVERY
审中-公开
VERFAHREN ZUR ABTRENNUNG UND GEWINNUNG VON HOCHSCHMELZENDEM METALL
- 专利标题: METHOD OF HIGH-MELTING-POINT METAL SEPARATION AND RECOVERY
- 专利标题(中): VERFAHREN ZUR ABTRENNUNG UND GEWINNUNG VON HOCHSCHMELZENDEM METALL
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申请号: EP06715376.7申请日: 2006-03-08
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公开(公告)号: EP1873265A1公开(公告)日: 2008-01-02
- 发明人: OGASAWARA, Tadashi , YAMAGUCHI, Makoto , DAKESHITA, Katsunori , HORI, Masahiko
- 申请人: Sumitomo Titanium Corporation
- 申请人地址: 1, Higashihamacho Amagasaki-shi, Hyogo 660-8533 JP
- 专利权人: Sumitomo Titanium Corporation
- 当前专利权人: Sumitomo Titanium Corporation
- 当前专利权人地址: 1, Higashihamacho Amagasaki-shi, Hyogo 660-8533 JP
- 代理机构: Simons, Amanda Louise
- 优先权: JP2005072854 20050315
- 国际公布: WO2006098199 20060921
- 主分类号: C22B34/12
- IPC分类号: C22B34/12 ; C22B9/02
摘要:
A TiCl 4 gas is supplied to a molten CaCl 2 liquid held in a reactor vessel 6 through a raw material feed pipe 11, TiCl 4 is reduced to produce granular metallic Ti by Ca melted in the CaCl 2 liquid. The molten CaCl 2 liquid in which Ti granules taken out downward from the reactor vessel 6 is mixed is delivered to a separation process 12, the molten CaCl 2 liquid is heated in a heating vessel 15, and separation is generated by a difference in specific gravity, whereby the molten CaCl 2 liquid 16 is located in an upper layer while a metallic Ti 17 is located in a lower layer. The metallic Ti 17 in the lower layer is taken out from a high-melting-point metal discharge port 18, and the metallic Ti 17 is solidified to yield an ingot. The molten CaCl 2 liquid 16 in the upper layer is delivered to an electrolysis process 13 along with the molten CaCl 2 liquid taken out from the reactor vessel 6, and Ca generated by the electrolysis and CaCl 2 are returned into the reactor vessel 6. A separation and recovery method of the invention is applied to the separation process 12 in the above production process, and high-quality Ti or Ti alloy is efficiently separated and recovered from the CaCl 2 -containing molten salt with a small amount of energies
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