ES405641A1 - Procedure and apparatus for the production of black smoke of low structure in particles of great size. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Process for the production of carbon black of low structure in large particles, similar to thermal black from an oil feeding material comprising the continuous and simultaneous steps consisting of: (a) spraying a minor portion of the total feed material, together with the hot combustión products from the combustión of a hydrocarbon oil, into a reaction zone of the first stage under conditions in which a reaction is initiated of carbon black formation; (b) passing the reaction products and the gases from step (a) into a widened secondary reaction zone of circular cross-section; (c) introducing most of the total feed material into the upstream portion of said secondary reaction zone, introducing said greater part of the feed material in the form of a plurality of equally spaced sprayings around the cross section of said zone and directed to a point downstream along the axis of said secondary reaction zone; (d) tangentially introducing the secondary hot combustión gases into said secondary reaction zone in a position immediately downstream of the sprays of step (c), and allowing the reaction products, and gases to pass into a third zone of reaction which is circular in cross section and of larger diameter than said secondary reaction zone; (e) tangentially introducing tertiary hot combustión gases into said third reaction zone in a plurality of positions along the length of said third reaction zone; y (f) terminating the reaction by quenching the reaction products downstream of said third reaction zone. (Machine-translation by Google Translate, not legally binding)