Carbon black obtained from aqueous suspensions

Details Carbon black obtained from aqueous suspensions Carbon black obtained from aqueous suspensions

1982-02-19

1984-07-10

Heller, Gregory A.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423445, 423449, 106307, C01B 3102

Patent

active

044592736

ABSTRACT:
This invention relates to carbon black obtained from an aqueous suspension. 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 vapors carrying the carbon black and the remaining liquid aqueous phase from the vessel, and separating the carbon black from the hydrocarbon vapors.

REFERENCES:
patent: 3574547 (1971-04-01), Hinson
patent: 4061719 (1977-12-01), Schallus
patent: 4097656 (1978-06-01), Dany et al.
patent: 4098968 (1978-07-01), Wortmann et al.
patent: 4329329 (1982-05-01), Dolkemeyer et al.

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