|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Rare Metal Extraction & Processing
||Batch Studies for Removing Vanadium(V) and Chromium(VI) from Aqueous Solution Using Anion Exchange Resin
||Yang Yang, Hong-Yi Li, Min-Min Lin, Bing Xie
|On-Site Speaker (Planned)
After precipitation of vanadium-containing leaching liquor, vanadium(V(V)) and chromium(Cr(VI)) exist in the waste water in form of vanadate ions and chromate ions . In order to efficiently extract and recover V(V) and Cr(VI) from waste water, an environment-friendly method based on anion exchange was investigated in batch tests using macroporous weak base resin Dex-V. The adsorption condition optimizes in detail, including the effect of pH, initial metal concentration, resin volume, contact time and temperature. The ion-exchange adsorption process for both V(V) and Cr(VI) showed maximum capacity at pH value 3.0 for an initial concentration of 100 mg/L, and reached equilibrium after about 40 minutes of contact at 298K. The maximum adsorption ratio under the optimum condition for V(V) and Cr(VI) is 98.98% and 99.87% respectively. Result shows that the established method is a promising alternative for simultaneous extraction of vanadium and chromium.