公开(公告)号：EP1873265A1

公开(公告)日：2008-01-02

申请号：EP06715376.7

申请日：2006-03-08

申请人： Sumitomo Titanium Corporation

发明人： OGASAWARA, Tadashi ,  YAMAGUCHI, Makoto ,  DAKESHITA, Katsunori ,  HORI, Masahiko

IPC分类号： C22B34/12 ,  C22B9/02

CPC分类号： C25C3/02 ,  C22B9/02 ,  C22B34/1272 ,  C22B34/1295 ,  Y02P10/234

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

摘要翻译： 通过原料供给管11将TiCl 4气体供给到保持在反应器容器6中的熔融CaCl 2液体中，通过在CaCl 2液中熔融的Ca，还原TiCl 4，生成粒状的金属Ti。 将其中从反应器6向下取出的Ti颗粒的熔融CaCl 2液体输送到分离过程12，在加热容器15中加热熔融的CaCl 2液体，并通过比重差产生分离 由此熔融的CaCl 2液体16位于上层，而金属Ti 17位于下层。 下层的金属Ti 17从高熔点金属排出口18取出，使金属Ti 17固化而得到锭。 上层熔融的CaCl 2液体16与从反应容器6取出的熔融CaCl 2液体一起被输送到电解工艺13，并且通过电解产生的Ca和CaCl 2返回到反应器6中。 本发明的分离和回收方法适用于上述生产过程中的分离过程12，并且以少量能量从含CaCl 2的熔融盐有效地分离和回收高品质的Ti或Ti合金