Back to results
US 2009/0155157 A1Published application
Process for aftertreating carbon black
AssigneeEvonik Degussa GmbH
InventorsFrank Stenger, Klaus Bergemann, Manfred Nagel
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for aftertreating carbon black, wherein the carbon black is subjected to a carrier gas flow in a fluidized bed apparatus in the lower region of the apparatus, an additional gas stream is introduced into the fluidized bed apparatus, and the carbon black is aftertreated in the fluidized bed which arises.
Claims21
1-9. (canceled)
A process for treating carbon black, comprising:
- a) subjecting said carbon black to a main flow of gas in a fluidized bed apparatus, wherein said main flow of gas comprises:
- i) a carrier gas that is introduced in the lower part of said fluidized bed apparatus;
- and
- ii) an additional gas that is also introduced into said fluidized bed apparatus;
- b) aftertreating said carbon black in said fluidized bed apparatus.
2 more elements
Dependencies are inferred from the claim text.