Process for producing carbon black
Patent
·
OSTI ID:7053439
This patent describes a process for producing carbon black. It comprises introducing a fuel and oxidant into a combustion zone at a rate sufficient to produce a gauge pressure within the combustion zone of at least 2.0 inches (51 mm) of mercury; reacting the fuel and the oxidant so as to provide a stream of hot combustion gases possessing sufficient energy to convert a carbon blackyielding hydrocarbon feedstock to carbon black; injecting hydrocarbon feedstock into the stream of hot combustion gases axially or substantially radially relative to the direction of the flow of the hot combustion gas stream under sufficient pressure to achieve penetration and mixing of the feedstock; flowing the stream of hot combustion gases containing the feedstock through a transition zone and into a first reaction zone; flowing the stream of hot combustion gases containing the feedstock out of the first reaction zone and into a throat zone; flowing the stream of hot combustion gases containing the feedstock out of the throat zone and into the second reaction zone having an internal cross-sectional area larger than the internal cross sectional area of the throat zone; quenching the stream of hot combustion gases containing carbon black; and cooling, separating and collecting the resultant carbon black.
- Assignee:
- Cabot Corp., Waltham, MA
- Patent Number(s):
- US 4879104; A
- Application Number:
- PPN: US 7-063187A
- OSTI ID:
- 7053439
- Country of Publication:
- United States
- Language:
- English
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