Study on Extraction of Vanadium from Acid Leaching Solution of Stone Coal with Ion Exchange Resin

Several kinds of resins are tested in the ion exchange experiment to study their abilities of absorption and desorption to the vanadium from acid leaching solution of stone coal.The results show that ion exchange is an excellent method for removing the impurities and concentrating the vanadium from the acid leaching solution of stone coal.Absorption time and pH value of the solution would affect the absorption efficiency of resin for vanadium,and the kinds of desorption agent and desorbing time would affect the desorption efficiency either. The absorptivity of 1^# resin can get 99% of its maximum amount while the desorption can reach 95% with suitable desorption agent in 4h.The purity of V₂O₅ deposited from the desorption solution after been decontaminated and bated can get over 99%.