What if bauxite residue gets neutralised and upgraded to a better raw material for metallurgy, and in the same time, leads to a high added value 2nd generation bio-fuel?
Yes, it seems to be possible!
Read this paper:
“Synergistic co-processing of an acidic hardwood derived pyrolysis bio-oil with alkaline red Mud bauxite mining waste as a sacrificial upgrading catalyst”, http://dx.doi.org/10.1016/j.apcatb.2013.02.007
To download the article follow the link above, or the ResearchGate link or contact the authors.