Carbon black, method for the production thereof, and use thereof

US8852739B2 · kind B2 · utility

Assignee

• Evonik Carbon Black GmbH · DE

Inventors

• Arndt-Peter Schinkel · Marienhausen, DE
• Michael Stanyschöfsky · Bad Mergentheim, DE
• Conny Vogler · Bornheim, DE
• Joachim Fröhlich · Dresden, DE
• Bernhard Schwaiger · Lechenich, DE
• Thomas Pelster · Neunburg vorm Wald, DE

Key dates

• Filing date: Feb 22, 2011
• Grant date: Oct 7, 2014
• Expiry date: Feb 18, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a carbon black with a CTAB surface area of from 20 to 49 m2/g, with a COAN greater than 90 ml/(100 g), and with a sum of OAN and COAN greater than 235 ml/(100 g). The carbon black is produced in a furnace reactor, where from 20 to 55% by weight of the feedstock used for the carbon black are introduced radially through a nozzle within the first third of the reaction zone, and the remaining amount of the feedstock used for the carbon black is introduced through a nozzle upstream at least one further point into the reactor. The carbon black can be used in rubber mixtures.