Carbon black reactor with a choke extension

Details Carbon black reactor with a choke extension Carbon black reactor with a choke extension

1990-07-20

1991-12-03

Kratz, Peter

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Pigment or carbon black producer

422151, 422156, 422158, C09C 148

Patent

active

050698826

ABSTRACT:
A carbon black reactor having an extended reaction choke substantially reduces the presence of coke and refractory grit in the carbon black product and erosion of the carbon black reactor due to impingement of particles of forming carbon black within the reactor. The carbon black reactor generally comprises a reaction choke which extends into an exit chamber to an outlet opening within the exit chamber. Hot gas and particles of forming carbon black flow through the reaction choke, through the outlet opening into the exit chamber. The outlet opening of the reaction choke is located within the exit chamber sufficiently distal from the upstream end of the exit chamber to substantially eliminate impingement of the particles of forming carbon black against the upsteam end of the exit chamber.

REFERENCES:
patent: 2440423 (1948-04-01), Wiegand et al.
patent: 3922335 (1975-11-01), Jordan et al.
patent: 3984528 (1976-10-01), Cheng
patent: 4134966 (1979-01-01), Austin
patent: 4228131 (1980-10-01), Rothbuhr et al.
patent: 4241022 (1980-12-01), Kraus et al.
patent: 4320090 (1982-03-01), Hunt
patent: 4619812 (1986-10-01), Murray
patent: 4643880 (1987-02-01), King et al.
patent: 4687643 (1987-08-01), Cortesi et al.
patent: 4692312 (1987-09-01), Dilbert et al.

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