Cleaner extraction of vanadium from vanadium-chromium slag ...
The decrease in the concentration of FeCl 2 less than 2.6 wt. and the increase in T:W>1:5 also degrades the quality of the concentrate, but due to the reduced extraction of manganese from slag. When t<220o about With the extraction of manganese and the quality of the concentrate is not increased, while the cost of heating the slurry grow.