Process for producing vanadium alloy foil

Abstract

The invention provides a process for producing vanadium alloy foil suitable as a membrane in a hydrogen-refining unit. A vanadium alloy comprising 5 to 25% by weight of at least one selected from the group consisting of Ni, Co, Mo, Fe and Ag, 0.01 to 5% by weight of at least one selected from the group consisting of Ti, Zr and Y, and the balance being V is used. A melt of the vanadium alloy is prepared by use of a crucible 1 having slit 3 in the bottom, a roll 2 comprising a cylinder whose central axis is arranged to be parallel to the slit is rotated, the melt is jetted from the slit 3 to the roll surface 5, the melt is jetted from the slit 3 is rapidly cooled, and the vanadium alloy solidified on the roll surface 5 is continuously exfolitated from the roll surface 5 to obtain the foil.

Dependencies are inferred from the claim text.