Ann: Significant Vanadium Resource Upgrade at Daejon Deposit, page-15

If you search for Hotrock1's posts, I think you'll find he has soem good posts that go towards answering these questions.

I found this on in the google ether... just a bit of trivia. Great timing to be in a deposit with both uranium and vanadium, and VRBs!

Processing Vanadium from Sediments – Different to Magnetites

Vanadium slags are traditionally produced as a co-product in uranium processing.

The vanadium hosted in sediments and sandstones typical of the US are commonly mined firstly for uranium then vanadium as a co-product. The processing of these ores requires solvent extraction to separate the vanadium and uranium fractions which is then followed by an ion exchange stage which leaves the vanadium in the acid solution. The acidic solution is oxidised to allow the recovery of vanadium from the organic salts by means of soda ash. The resultant slag produced then undergoes a similar pyrometallurgical process to recover FeV and V2O5 for different uses.

Emerging players in the vanadium sector that are investigating sedimentary hosted deposits of vanadium (different to uranium-vanadium sedimentary deposits) include: Energizer Resources (TSX:EGX) with its Green Giant deposit in Madagascar; Sino Vanadium (TSX:SGX) with its Daquan project in China; and American Vanadium (TSX:AVC) which owns the Gibilleni deposit in Nevada, USA.