Separation of asphaltic materials from heptane soluble component

Details Separation of asphaltic materials from heptane soluble component Separation of asphaltic materials from heptane soluble component

1979-03-22

1980-07-08

O'Keefe, Veronica

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

Solvent extraction

208309, C10C 300, C10C 308

Patent

active

042116333

ABSTRACT:
A more efficient separation of asphaltic materials from the heptane soluble components in liquified coal and other liquified solid hydrocarbonaceous materials is accomplished by using a natural gasoline fraction, boiling in the range of from 200.degree.-400.degree. F., as a solvent extraction agent and then effecting a centrifugal separation at elevated temperatures and pressures. The resulting separated asphaltic materials will have far less heptane soluble material than the heretofore used procedures which involved the settling out of the asphaltenes in huge settling tanks.

REFERENCES:
patent: 3235482 (1966-02-01), Knowles
patent: 3490586 (1970-01-01), Jaisle
patent: 4155833 (1979-05-01), Gleim

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