FREMGANGSMAADE TIL UDVINDING AF KOENROEG FRA VANDIGE SUSPENSIONER

FREMGANGSMAADE TIL UDVINDING AF KOENROEG FRA VANDIGE SUSPENSIONER

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HENTGES R, DOLKEMEYER W, MEISENBURG E, ERDT K
Format: Patent
Sprache:dan
Schlagworte:
ADHESIVES
CHEMISTRY
DYES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
PREPARATION OF CARBON BLACK
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Beschreibung
Zusammenfassung: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.