Patent · US Active

Carbon black, method for the production of carbon black or other flame aerosols, and device for carrying out said method

US8003069B2 · kind B2 · utility

1Cited by

10References

23Claims

0Family size

Assignee

Evonik Carbon Black GmbH · DE

Inventors

Ulrich Riebel · Kronberg, DE
Matthias Katzer · Leingarten, DE
Kai Krauss · Großkrotzenburg, DE
Alfons Karl · Hanau, DE
Juergen Behnisch · Madison, US

Key dates

Filing date	Jun 10, 2010
Grant date	Aug 23, 2011
Priority date	—
Expiry date	Jun 10, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23D2900/21007
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for producing carbon black or other flame aerosols, comprising the following steps: the heat is removed from the flame by dissipation and/or radiation; a thin gas boundary layer is formed; the flow formed by the flame and the gas boundary layer is accelerated or expanded; the obtained aerosol is withdrawn; and the cooling surface is cleaned. The invention further relates to a device for carrying out such a method and a black carbon having a maximum pH value of 6.0, a maximum ignition residue of 0.1 percent, and a maximum 5 μm screening refuse of 200 ppm. The inventive black carbon can be used in rubber, plastic, printing inks, inks, inkjet inks, toners, lacquers, dyes, paper, bitumen, concrete, and other construction materials.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.