GSAe technology and know-how is based on the hydrometallurgical extraction of vanadium and nickel using acidic and alkaline leaching, followed by precipitation and filtering of the salts. Over many years we have optimised the operation of our process, adapting the chemistry for different qualities of ash feed-stock.asic metals extraction scheme would involve the following process steps:
Waste products from the leaching processes would include unconverted silica, carbon and metals which can be disposed of as ‘safe’ waste. Liquid effluents would be similar to sea water.
We have also been able to research and develop enhancements to the process to open up different feeds from our international clients such as Flexicoke and Slurry Hydrocracking and Hydrogenation process residues.
This is some Vanadium Pentoxide (V2O5) recovered at our plant in Harwich, UK from Flexicoke.