Upgrading of thermal black reject material

Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon

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Details

423461, 23314, C01B 3102, C09C 148

Patent

active

043093990

ABSTRACT:
Reject material which has been removed from a thermal black process by a screen and impinged on a plate in the bag filter, can be upgraded by removing material which has been reduced in size by being sucked into the bag filter, and adding that material to the product stream. The material of reduced size is removed by a vibrating screen. Some 50 to 60% of the reject material can be upgraded by this process.

REFERENCES:
patent: 3347638 (1967-10-01), Gerdes
patent: 3989473 (1976-11-01), Henderson

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