FLUO SOLIDS

FURNACES OR REACTORS FOR THE TREATMENT OF SOLIDS SUSPENDED IN GASES AND MORE PARTICULARLY WHEREIN A LAYER OF FINE SOLIDS SUCH AS METALLIC ORES, DOLOMITE, LIMEBEARING SLUDGES AND OTHER SUCH MUDS, CARBON BEING ACTIVATED, AND ANY SUCH SOLIDS TO BE SUBJECTED TO ROASTING, OXIDATION, REDUCTION, DECOMPOSITION OR DISSOCIATION AND TO NODULIZATION; IN WHICH LAYER SUCH FINE SOLIDS ARE MAINTAINED IN MOBILE SUSPENSION BY AND IN THE PRESENCE OF UPFLOWING CONTACT GASES PROVIDED FOR EFFECTING A CHEMICAL OR PHYSICAL CHANGE OF THE SOLIDS UNDERGOING TREATMENT