EP 1683877 A4 20080625 - METHOD FOR PRODUCING Ti OR Ti ALLOY THROUGH REDUCTION BY Ca
Title (en)
METHOD FOR PRODUCING Ti OR Ti ALLOY THROUGH REDUCTION BY Ca
Title (de)
VERFAHREN ZUR HERSTELLUNG VON TI ODER TI-LEGIERUNG DURCH REDUKTION MIT CA
Title (fr)
PROCEDE DE PRODUCTION DE TI OU D'ALLIAGE DE TI PAR REDUCTION PAR CA
Publication
Application
Priority
- JP 2004014734 W 20041006
- JP 2003352661 A 20031010
- JP 2004044552 A 20040220
- JP 2004074445 A 20040316
Abstract (en)
[origin: EP1683877A1] A method for producing Ti or Ti alloys through reduction by Ca, including: a reduction step of holding a molten salt, containing CaCl 2 and having Ca dissolved therein, in a reactor vessel 1, and reacting a metallic chloride containing TiCl 4 with Ca in said salt to generate particles of Ti or Ti alloys in said salt; and a separation step of separating particles of Ti or Ti alloys, generated in said salt, from said salt. An electrolysis step 8, in which CaCl 2 discharged outside the reactor vessel 1 is electrolyzed into Ca and Cl 2 , and the generated Ca is used for the generation reaction of Ti or Ti alloys in the reactor vessel 1, is preferably added. In the electrolysis step 8, an alloy electrode made of a molten Ca alloy, if applied for a cathode, is effective in enhancing the electricity efficiency, and also can be effectively utilized as a carrier medium of Ca for raising a Ca concentration of molten salt. By this method, high-purity Ti metals can be efficiently and economically produced.
IPC 8 full level
C22B 34/12 (2006.01)
CPC (source: EP US)
C22B 34/1272 (2013.01 - EP US); C22B 34/1295 (2013.01 - EP US); C25C 3/02 (2013.01 - EP US); C25C 3/28 (2013.01 - EP US)
Citation (search report)
- [DX] US 4820339 A 19890411 - BIENVENU GERARD-PIERRE [FR], et al
- [A] US 4105440 A 19780808 - GENTAZ CLAUDE, et al
- [A] US 2002194953 A1 20021226 - ROSENBERG HARRY [US], et al
- See references of WO 2005035806A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1683877 A1 20060726; EP 1683877 A4 20080625; AU 2004280401 A1 20050421; AU 2004280401 B2 20080110; AU 2004280401 C1 20081211; US 2007131057 A1 20070614; WO 2005035806 A1 20050421
DOCDB simple family (application)
EP 04792090 A 20041006; AU 2004280401 A 20041006; JP 2004014734 W 20041006; US 57522404 A 20041006