Thanks Boris, in vacuum under temperature Ti2O3 on C surface will be perfectly react with outcome of Ti and CO. Layer of Ti can be formed on top of layer of a C (carbon particles, nanotubes, graphene, just name it). Question how to recycle C – as a first task to catch CO, and second question is to separate CO (as I understand that can be done by chlorella – living creature does it perfectly).
And thanks for tip how to make experiments – Clay is Al2O3 + SiO2 — needs to grind to smallest as possible particles. Dried as much as possible. Place dust into a vacuum chamber and try to separate by electrostatics. Low grade of vacuum (1mm) actually will help to charge dust particle. 6 time bigger gravitation force can be compensated. If separation can be achieved – well, it will be good.