Patent ID: 6846465

Claim:
Installation that comprises: at least one vibratory helicoidal conveyor ( 12 ) that comprises at least one coil, at least one hose ( 3 ) for introducing the catalyst and at least one catalyst discharge home ( 4 ), whereby this helicoidal conveyor is placed on a vibrating table ( 1 ), at least one combustion zone ( 14 ) in which is placed at least one coil of the vibratory helicoidal conveyor that comprises at least one hose ( 8 ) for introducing gases and at least one gas discharge hose ( 9 ), at least one calcination zone ( 15 ) in which is placed at least one coil of the vibratory helicoidal conveyor that comprises at least one hose ( 10 ) for introducing gases and at least one gas discharge home ( 9 ), said installation, however, does not comprise a zone in which a gas that contains a halogenated compound is introduced.