Apparatus for improving the degree of graphitization of carbon b

Details Apparatus for improving the degree of graphitization of carbon b Apparatus for improving the degree of graphitization of carbon b

1982-09-30

1986-07-22

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Pigment or carbon black producer

373111, 422151, 423448, 423460, C01B 3104, C09C 146, C09C 156

Patent

active

046018875

ABSTRACT:
The invention relates to improving the degree of graphitization of carbon black produced by subjecting hydrocarbons which are liquid or gaseous under normal conditions to a thermal conversion reaction in the presence of oxygen or an oxygen-containing gas and steam, if desired, at temperatures of 1200.degree. to 2000.degree. C. and pressures of 1 to 80 bars. To this end, the carbon black is conveyed downwardly in a quasi-fluid state, within 1 to 5 hours through a sojourn zone in upright position, the sojourn zone being maintained at a temperature of at least 1200.degree. C.
The invention relates to an apparatus for carrying out this process, the apparatus comprising a graphite tube; a steel container concentrically surrounding the graphite tube; a feed pipe penetrating into the interior of the graphite tube; a water-cooled discharge means; and a nitrogen feed inlet arranged below the lower end of the graphite tube; the space left between the graphite tube and steel container being occupied by insulating material.

REFERENCES:
patent: 1807884 (1931-06-01), Wiegand
patent: 2021991 (1935-11-01), Depew
patent: 2134950 (1938-11-01), Offult
patent: 2949344 (1960-08-01), Macura
patent: 3408164 (1968-10-01), Johnson
patent: 3641249 (1972-02-01), Higgins
patent: 3684446 (1972-08-01), Markel
patent: 3933434 (1976-01-01), Matovich
patent: 4061719 (1977-12-01), Schallus et al.
patent: 4160813 (1979-07-01), Markel et al.
patent: 4208373 (1980-06-01), Matovich
patent: 4213955 (1980-07-01), Casciani et al.

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