CONTINUOUS OIL RECOVERY PROCESS FROM SPENT OILY SOLID MATERIAL

A process for the treatment of oily hazardous solid materials such as for example spent bleaching earths. The process allows a safe and economical recovery of typically about 85% to 95% of the residual oil contained in such oily hazardous solid materials and transforms those ones into inert material...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HENDRIX, William Blake, KEMPER, Timothy, KELLENS, Marc
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A process for the treatment of oily hazardous solid materials such as for example spent bleaching earths. The process allows a safe and economical recovery of typically about 85% to 95% of the residual oil contained in such oily hazardous solid materials and transforms those ones into inert materials safe to transport, store, dispose of, or even makes them valuable for some applications. The process includes the production of a transportation slurry and at least one extraction slurry. The at least one extraction slurry is separated in at least one centrifuge decanter.