Ann: Exceptionally High-Grade V-Zn-Pb Concentrate from Abenab, page-27

'The only problem with the eye-watering grades of the gravity concentrates is the peculiar combination of Cu Pb Zn and V all in one concentrate, so maybe some smelters around the world may not be interested in this rather weird but super high-grade polymetallic gravity concentrate."

Would any of those elements except maybe Cu (because it is soluble ) be a problem when leached with say nitric acid or sulphuric acid or maybe sodium sulphide , or are they credits ,ie Pb can be later tapped from the bottom of a ladle bucket in a smelter ? Be interesting to know how much phosphorus was in that con . Still they would need a plant specialised in down stream leaching vanadate for refining are there any and to what purity is Vanadium needed at and in what form ?