Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Including contact with extraneous additive other than...
Patent
1989-03-10
1991-09-10
McFarlane, Anthony
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Including contact with extraneous additive other than...
208400, 208429, 208434, C10G 104
Patent
active
050471430
ABSTRACT:
I disclose a method for upgrading low-grade uintaite to high-grade uintaite having a desired meltpoint. It comprises dissolving the uintaite in a medium polarity solvent, mixing the dissolved uintaite with a nonpolar saturated hydrocarbon solvent at a volume-to-volume ratio that determines the meltpoint of the upgraded uintaite product, separating residual asphaltenes from the mixture, and recovering the medium polarity solvent and nonpolar saturated hydrocarbon to produce an upgraded uintaite having the desired meltpoint.
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"Kirk-Othmer Encyclopedia of Chemical Technology," 3rd ed.; vol. 11, 1980, pp. 802-805.
Chevron Research Company
Keeling Edward J.
McFarlane Anthony
Priester Witta
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