SEPARATION OF CARBON BLACK BY LIQUID HYDROCARBONS

摘要

SEPARATION OF CARBON BLACK BY LIQUID HYDROCARBONS A process for the separation of carbon black from liquids containing it comprising washing water containing said carbon black with a liquid hydrocarbon whereby said carbon black passes into the hydrocarbon phase. The hydrocarbon phase containing the carbon black is then passed through a disk centrifuge thereby separating said phase into (1) the bulk of said liquid hydrocarbon and (2) a mixture comprising the carbon black and the remainder of the liquid hydrocarbon. If desired, the mixture of carbon black and liquid hydrocarbon can be distilled in order to separate the hydrocarbon completely.