Patent ID: 6746653
Filing Date: 2004-06-08
Classification: B01J,C22B,Y02P

Abstract:
A process for recovering at least one transition metal compound from a salt-containing mixture, comprising:separating a mixture comprising at least one transition metal compound and a least one salt from said salt-containing mixture by distillation, thereby obtaining a pulverulent residue; conveying said pulverulent residue to a combustion zone maintained at a temperature of from 900 to 2000Â° C., thereby forming a flue gas/salt mixture; quenching said flue gas/salt mixture with water, thereby forming a quench solution; separating a combustion residue comprising said at least one transition metal compound from said quench solution; and drying said combustion residue at a temperature of from 80 to 180Â° C., wherein said salt-containing mixture comprises at least one transition metal compound, at least one salt, and at least one organic compound.