Carbon black collecting process

Claim 1

IN A PROCESS FOR RECOVERING CARBON BLACK PRODUCT FROM AN EFFLUENT OF A CARHON BLACK FURNACE, WHEREIN SAID EFFLUENT IS PASSED IN SERIES FLOW THROUGH A PLURALITY OF GRAVITATIONAL SEPARATORS THENCE THROUGH A BAG FILTERING ZONE; THE IMPROVEMENT WHICH INCLUDES THE STEPS: (1) INTRODUCING THE AGASEOUS EFFLUX FROM SAID SEPARATORS INTO SAID FILTERING ZONE HAVING AT LEAST TWO FILTERING COMPART MENTS AND WHEREIN EACH OF SAID COMPARTMENTS CONTAINS A GAS PERMEABLE MEDIUM COMPRSING AT LEAST ONE FILTER BAG; (2) CONTINUOUSLY AND CYCLICALLY EFFECTING FILTERING OF SAID EFFLUX IN LESS THAN ALL OF SAID COMPARTMENTS WITH CONTEMPORANEOUS CLEANING OF THE FILTER MEDIM OF THAT PORTION OF SAID ZONE EXISTING IN THE NONFILTERING PHASE BY CONTACTING THE SURFACE OF THE LAST NAMED MEDIUM OPPOSITE THE FILTERING SURFACE THEREOF WITH A PULSATING FLOW OF REPRESSURING GAS SUBSTANTIALLY FREE OF CARBON BLACK PARTICLES; AND (3) CONTINUOULSY DISCHARGING SAID REPRESSURING GAS, CARBON BLACK DISLODGED FROM THE SURFCE OF SAID FILTER MEDIUM AND THE SEPARATED CARBON BLACK OF SAID GRAVITATIONAL SEPARATORS INTO A PNEUMATIC PRODUCT CONVEYOR WHEREBY SAID REPRESSURING GAS SERVES TO EFFECT TRANSPORT OF THE SO RECOVERED CARBON BLACK RESIDING IN SAID CONVEYOR.