Analytical Chemistry of Niobium and Tantalum. Chlorination of Titania and Distillation Separation from Niobium and Tantalum

Analytical Chemistry of Niobium and Tantalum

“…With exceptions noted here, the chlorination-distillation oper- Separation from Hydrolyzed and Ignited Oxide Mixtures ation was performed as previously described (1). Still pot residues and the distillation column holdups were combined and analyzed for total titania present, for the quantity of R2Os that had been chlorinated and sometimes for total R2Os.…”

“…Still pot residues and the distillation column holdups were combined and analyzed for total titania present, for the quantity of R2Os that had been chlorinated and sometimes for total R2Os. The determination of titania in the residues as well as in the distillate receiver has been described (1).…”

“…These considerations indicate the desirability of introducing the chlorination-distillation step into separative schemes. 1 Present address, Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Mass.…”