Process for producing carbon black

Details Process for producing carbon black Process for producing carbon black

1985-09-18

1988-02-16

Heller, Gregory A.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423449, 423458, C01B 3102, C09C 148

Patent

active

047254246

ABSTRACT:
A process for producing carbon black by a furnace method wherein carbon black is produced in a reaction system comprising a first zone where a mixture of a fuel hydrocarbon and an oxygen-containing gas is burned to form a high temperature combustion gas atmosphere, and a starting oil material is continuously supplied to the high temperature combustion gas atmosphere, and a second zone, as a down-stream zone subsequent to the first zone, where a carbon black-suspended hot gas formed in the first zone flows in and is rapidly cooled, characterized in that carbon dioxide or carbon dioxide and steam are supplied to the first zone and/or the second zone to bring the carbon dioxide concentration in the second zone within a range of from 15 to 70% by volume, and the retention time of the carbon black-suspended hot gas in the second zone is at least 0.2 second.

REFERENCES:
patent: 3637350 (1972-01-01), Thomas
patent: 3642446 (1972-02-01), Heller
patent: 4088741 (1978-05-01), Takewell

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