Radiochemical processing of activated specimens of vanadium–chromium–titanium alloy

Abstract

The extraction part of the technological scheme for radiochemical separation of components of irradiated vanadium–chromium–titanium (V–Cr–Ti) alloy and for their purification from metallic activation products was tested on the whole using activated alloy specimens. It was shown that the replacement of the acid re-extraction of vanadium with a peroxide re-extraction and of the acid re-extraction of chromium with an alkaline re-extraction substantially improves the characteristics of the extraction reprocessing of the activated V–Cr–Ti alloy. In particular, the durations of the vanadium and chromium re-extractions were shortened by about an order of magnitude, the outputs of these alloy components increased, vanadium purification from rare-earth metals became twice as great, and chromium decontamination from cobalt increased by two orders of magnitude.