Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Reexamination Certificate
2011-08-23
2011-08-23
Hendrickson, Stuart (Department: 1736)
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
C423S615000, C423S335000, C423S452000, C106S437000
Reexamination Certificate
active
08003069
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is formed; the flow formed by the flame and the gas boundary layer is accelerated or expanded; the obtained aerosol is withdrawn; and the cooling surface is cleaned.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.
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Behnisch Juergen
Karl Alfons
Katzer Matthias
Krauss Kai
Riebel Ulrich
Evonik Carbon Black GmbH
Hendrickson Stuart
Rump Richard M
Smith , Gambrell & Russell, LLP
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