Xiao Liansheng

Separation of molybdenum from tungstate solution by a combination of moving packed bed and fluid bed ion-exchange techniques

A new ion-exchange method to separate molybdenum from tungstate solution is presented. It employs a moving packed bed to adsorb thiomolybdate from the sulfurized tungstate solution and a fluid bed to desorb molybdenum and thereby regenerate the resin. Under appropriate flow rate the Mo-removal is better than 99% and a tungsten loss below 0.65%. It is moreover combined with good resin reusability and less consumption of desorption reagent.

Electrode selection of electrolysis with membrane for sodium tungstate solution

AbstracBy measuring the electrode polarization curves of many kinds of materials and life spans of electrodes through intensifying electrolysis in the process, the appropriate electrode materials for different stages of electrolysis of sodium tungstate solution with membrane have been selected The effects of the electrodes with different shapes on electrolysis have been investigated. The result shows that network electrode is more suitable to electrolysis of sodium tungstate solution.