Mineral oils: processes and products – Asphalts – tars – pitches and resins; making – treating and... – Solvent extraction
Patent
1982-09-27
1985-03-05
Gantz, Delbert E.
Mineral oils: processes and products
Asphalts, tars, pitches and resins; making, treating and...
Solvent extraction
208309, C10C 118, C10C 308
Patent
active
045029440
ABSTRACT:
A method of separating a process material comprising oils, resins and asphaltenes into at least three fractions. The process material is mixed in a mixing zone with a solvent selected from the group consisting of paraffinic hydrocarbons having between about 3 and about 8 carbon atoms. The process material-solvent mixture is introduced into a first separation zone to form an asphaltene-rich first heavy fraction and a resin-rich intermediate fraction, separated by a first liquid-liquid interface, and to form a first light fraction, rich in solvent and oils, separated from the intermediate fraction by a second liquid-liquid interface.
The first heavy fraction and the intermediate fraction are withdrawn from the first separation zone. The first light fraction is introduced into a second separation zone to separate a second heavy fraction, rich in oils, and a second light fraction, rich in solvent.
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Addison William G.
Gantz Delbert E.
Kerr-McGee Refining Corporation
Myers Helane
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