IMPROVED ELECTROLYTIC PROCESS FOR PURIFYING TITANIUM, ZIRCONIUM OR HAFNIUM

Patent · Sun Nov 01 04:00:00 EST 1959

OSTI ID:4212875

Purification of Ti by electrolysis from the anode in a fused alkali metal halide salt bath containing alkali metal fluotltanate is described. To an electrolytic cell heated in Ar to 850 deg C is added NaCl 184 parts) then K/sub 2/ TiF/sub 6/ (16 parts). The anode consists of the container, a perforated graphite barrier, and impure Tl chips. After inserting an Fe cathode, electrolysis was carried out at 910 to 935 deg C, 2.8 to 2.9 volts, cathode current density of 225 to 450 amps per dm/sup 2/, and anode current 34 to 39 amps per dm/sup 2/. The refined metal was very pure and bad a Brinell hardness below 120. The Ti scrap in the anode may be tamped intermittently to squeeze out sludge formed. (T.R.H.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-001800
• OSTI ID: 4212875
• Report Number(s): GB 823125
• Country of Publication: United Kingdom
• Language: English

Related Subjects

ANODES
ARGON
BARRIERS
CATHODES
ELECTROLYSIS
ELECTROLYTIC CELLS
FUSED SALTS
GRAPHITE
HARDNESS
HEATING
HIGH TEMPERATURE
IMPURITIES
IRON
METALS, CERAMICS, AND MATERIALS
POTASSIUM FLUORIDES
SODIUM CHLORIDES
TITANIUM
TITANIUM FLUORIDES
VESSELS