Separation Science and Technology, Vol.48, No.6, 877-883, 2013
Vanadium Extraction using Pseudo-Emulsion Based Hollow-Fiber with Strip Dispersion Technique
The present work investigated the removal rates of vanadium (V) from aqueous solution using PEHFSD technology. A pseudo-emulsion was prepared by dispersing hydrochloric acid (stripping) solution into an organic phase constituted of kerosene, Aliquat 336(carrier), and 1-decanol. Within 60min, typical results with continuous recycling of both the feed and the pseudo-emulsion employing carrier concentration of 0.025M and feed pH 5 showed that extraction was nearly 99% whereas maximum recovery in the HCl solution achieved was over 85%. Mathematical analysis suggested that the removal rates are controlled by mass transfer resistance from extraction and stripping reactions.