Mineral oils: processes and products – Paraffin wax; treatment or recovery – Separation of paraffin from oil
Patent
1982-03-08
1984-04-24
Gantz, Delbert E.
Mineral oils: processes and products
Paraffin wax; treatment or recovery
Separation of paraffin from oil
C10G 7306
Patent
active
044446489
ABSTRACT:
A process is disclosed for the solvent dewaxing of wax containing hydrocarbon oils, preferably waxy petroleum oils most preferably waxy lubricating or transformer oils. The process employs methyl tertiary butyl ether as the dewaxing solvent, either alone or in combination with other dewaxing solvents such as ketones, halogenated hydrocarbon anti-solvents, and mixtures thereof. The use of methyl tertiary butyl ether as a dewaxing solvent, or in combination with conventional dewaxing anti-solvents permits lower volumes of solvent to be employed in the dewaxing process while simultaneously producing an oil of lower wax content and lower dewaxed oil pour point at the same filter temperature as that commonly employed using conventional dewaxing solvents. Dewaxed oil yields for equivalent pour point are 3 to 4% higher with the MTBE system.
REFERENCES:
patent: 2191136 (1940-02-01), Tijmstra et al.
patent: 2229658 (1941-01-01), Jenkins
patent: 2608517 (1952-08-01), Tiedje
patent: 2625502 (1953-01-01), Backlund et al.
patent: 2723220 (1950-04-01), Axe
patent: 2915449 (1950-12-01), Doorn et al.
patent: 3239445 (1966-03-01), Leonard et al.
patent: 3764517 (1973-10-01), Bodemuller, Jr.
patent: 3871991 (1975-03-01), Shaw
patent: 4111790 (1978-09-01), West
patent: 4115241 (1978-09-01), Harrison et al.
patent: 4146461 (1979-03-01), Broadhurst et al.
Allocca Joseph J.
Caldarola Glenn A.
Exxon Research and Engineering Co.
Gantz Delbert E.
LandOfFree
Solvent dewaxing with methyl tertiary butyl ether does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Solvent dewaxing with methyl tertiary butyl ether, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solvent dewaxing with methyl tertiary butyl ether will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-114566