The Electrolytic Production of Ti from a TiO₂ Feed (The DARPA Sponsored Program)

Abstract:

DARPA instituted an Initiative in Titanium in 2003 to produce titanium, alternatively to the Kroll process, in a billet form for under $4/lb. This DARPA sponsored program has gone into Phase II consisting of utilizing ore/TiO2 as a feed. The TiO2 is carbothermically reduced to a suboxide-carbide (Ti:O:C) which is used anodically to resupply the titanium content in an electrolysis process that deposits titanium in a powder morphology. The deposited powder is uniquely stripped from the cathodes and harvested in a separate stream that permits continuous electrolytic processing to produce titanium at an estimated cost about ½ the Kroll process. Oxygen contents less than 500 ppm are achievable with particle sizes in the desired range for powder metallurgy applications. The process has been demonstrated on a continuous basis and is in the stage of scaling-up to 500 lbs/day.

• Periodical: Key Engineering Materials (Volume 436)
• Pages: 61-74
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.436.61
• Online since: May 2010
• Authors: James Withers, John Laughlin, Yasser Elkadi, Jay DeSilva, Raouf O. Loutfy
• Keywords: Carbothermic Ore, Electrolytic Titanium, Titanium, Titanium Oxycarbide, Titanium Powder

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