Mineral oils: processes and products – Fractionation – Deasphalting
Patent
1980-12-09
1982-04-13
Gantz, Delbert E.
Mineral oils: processes and products
Fractionation
Deasphalting
208 45, C10C 300, C10G 2116
Patent
active
043246516
ABSTRACT:
An asphalt-containing mineral oil can be deasphalted at temperatures above about 80.degree. C. with methanol serving as the deasphalting solvent. Two liquid phases are produced, an asphalt-rich phase and a methanol-rich phase. By cooling the methanol-rich phase to a temperature below 80.degree. C., two additional liquid phases are produced, an oil-rich phase and a methanol-rich phase.
REFERENCES:
patent: 1766768 (1930-06-01), Werkentnin
patent: 2500757 (1950-03-01), Kiersted, Jr.
patent: 2669538 (1954-02-01), Yurasko et al.
patent: 4125458 (1978-11-01), Busnell et al.
Rollmann Louis D.
Walsh Dennis E.
Caldarola G.
Gantz Delbert E.
Gilman Michael G.
Huggett Charles A.
Mobil Oil Corporation
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