Fused salt electrolysis is one of the more interesting techniques available for producing or
refining titanium. The method is quite versatile, not only in control of metal purity, particle
size, and distribution, but also in feedstock, cell configuration and operating mode. Three
basic operating techniques are available: electrowinning, electrorefining, and electron
mediated reaction. At present, only electrorefining is commercial, although electrowinning
titanium was demonstrated on the industrial scale some 40 years ago and is again showing
some promise. Current technologies and prospects for further progress are reviewed.