Process for obtaining carbon black from aqueous suspensions

Details Process for obtaining carbon black from aqueous suspensions Process for obtaining carbon black from aqueous suspensions

C - Chemistry, Metallurgy

09

C

23/302

C09C 1/48 (2006.01)

Patent

CA 1170427

ABSTRACT A practically water-free carbon black is obtained from aqueous suspensions by mixing the suspension with liquid low-boiling hydrocarbons, then expanding the mixture in a vessel to evaporate the hydrocarbons, then drawing off separately the hydrocarbon vapours carrying the carbon black and the remaining liquid aqueous phase from the vessel, and separating the carbon black from the hydrocarbon vapours.

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