Method for producing a high DPG carbon black
Patent
·
OSTI ID:5685812
Carbon black having a high diphenylguanidine (DPG) value and a low pH value is produced in a reactor by separating the combustion gases into a plurality of streams by means of a perforate partition. This partition has a tubular portion or a conical portion which is surrounded by a plurality of through apertures at the downstream end. The hot combustion gases contact the make-hydrocarbon downstream of the partition. The combustion gases are introduced into the reactor upstream of the partition in a generally tangential direction for vortex flow while the make-hydrocarbon is introduced generally axially into the reactor.
- Assignee:
- Phillips Petroleum Co.
- Patent Number(s):
- US 4402929
- OSTI ID:
- 5685812
- Country of Publication:
- United States
- Language:
- English
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