Process and apparatus for preparing carbon black

Details Process and apparatus for preparing carbon black Process and apparatus for preparing carbon black

1992-04-20

1993-10-19

Lewis, Michael

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C09C 150

Patent

active

052543250

ABSTRACT:
A process for preparing a carbon black which can control the particle size distribution and aggregate size distribution of the carbon black. This apparatus comprises a combustion chamber, a cylindrical throat more contracted than the combustion chamber, which is adapted for forming a plug flow of the hot gas, downstream of said throat, an expanding venturi portion downstream of said throat, and a carbon black reaction chamber; and a process comprising forming a plug flow of the hot gas in at least the cylindrical throat and the expanding venturi portion; and feeding a hydrocarbon material from hydrocarbon material spraying nozzles provided at two or more axially separate sites in the expanding venturi portion.

REFERENCES:
patent: Re28994 (1976-09-01), Morgan et al.
patent: 4213939 (1980-07-01), Ruble
patent: 4822588 (1989-04-01), Gravley et al.
patent: 4988493 (1991-01-01), Norman et al.
Soviet Inventions Illustrated, Chemical, week 8712, Jan. 4, 1987; Derwent Publications, Ltd. London GB, Abstract No. 87-085139/12 & SU-A-1247381.

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