Materials of Construction for the Thermochemical IS Process, (II)

Abstract

Materials compatibility was examined for the environments of hydriodic acid solution containing iodine (“HI_x” solution) in the iodine-sulfur water splitting process. The testing environments were (1) HI_x solution environment in the Bunsen reaction step, and (2) HI_x solution environment in the high pressure distillation column. Ta and Si0₂ showed excellent corrosion resistance in the former environment. Ta and Nb did in the latter environment.