Carbon black production

Details Carbon black production Carbon black production

1980-07-21

1981-11-10

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

Control element is fluid pressure sensitive

422156, 422151, 423450, 423455, C01B 3102, C09L 148

Patent

active

042997976

ABSTRACT:
Carbon black is produced in a reactor by introducing a carbonaceous feed material into one end of the reactor. One or more streams of hot gases are introduced in a direction generally tangential to the side wall of the precombustion zone of the reactor and in a plane generally perpendicular to the longitudinal axis of the reactor to supply heat to decompose the feed material to produce carbon black. This operation is continued until the pressure drop across the reactor reaches a preselected higher value. Thereafter, the stream or streams of hot gases are introduced tangentially to the side wall of the precombustion zone but with each stream being in a respective plane at an angle less than 90.degree. to the longitudinal axis of the reactor and in a downstream direction with respect to the longitudinal axis of the reactor so as to reduce the pressure drop to a lower value.

REFERENCES:
patent: 2599981 (1952-06-01), Ekholm
patent: 2769692 (1956-11-01), Heller
patent: 2782101 (1957-02-01), Heller
patent: 2967762 (1961-01-01), Krejci
patent: 3057695 (1962-10-01), Osburn, Jr.
patent: 3165522 (1965-01-01), Dye
patent: 3467502 (1969-09-01), Davis
patent: 4134966 (1979-01-01), Austin

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