Process for making carbon black
USRE28974E · kind E · reissue
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1973 |
| Grant date | Sep 21, 1976 |
| Priority date | — |
| Expiry date | Nov 2, 1993 |
Classification
- Technology area (CPC —)General
Abstract
A process is provided for making high-quality carbon blacks at unusually good yields in a highly compact reaction space. The key steps of the process are the generation of a very hot combustion gas stream moving at very high speed in essentially plug flow by burning a hydrocarbon gas in oxygen in a compact combustion zone under conditions of very high heat release assuring the attainment of temperatures of over 3,000.degree. F., and the transverse injection into said highspeed combustion stream from the periphery thereof of a plurality of individual streams of liquid hydrocarbon make, each of which is injected under sufficient pressure to cause same to enter said high-speed combustion stream at a linear velocity of more than about 100 fett per second. Preferably, a highly oxygen-enriched oxidant is used to burn the hydrocarbon gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.