Manufacture of refrigeration oils

Patent · Tue Dec 08 00:00:00 EST 1981

OSTI ID:5705872

Chesluk, R P; Platte, H J; Sequeira, A J

Lubricating oils suitable for use in refrigeration equipment in admixture with fluorinated hydrocarbon refrigerants are produced by solvent extraction of naphthenic lubricating oil base stocks, cooling the resulting extract mixture, optionally with the addition of a solvent modifier, to form a secondary raffinate and a secondary extract, and recovering a dewaxed oil fraction of lowered pour point from the secondary raffinate as a refrigeration oil product. The process of the invention obviates the need for a separate dewaxing operation, such as dewaxing with urea, as conventionally employed for the production of refrigeration oils.

• Assignee: Texaco Inc
• Patent Number(s): US 4304660
• OSTI ID: 5705872
• Resource Relation: Patent File Date: Filed date 14 Apr 1980; Other Information: PAT-APPL-140148
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
LUBRICATING OILS
PRODUCTION
FURFURAL
PETROLEUM
PYRROLIDONES
REFRIGERATION
SOLVENT EXTRACTION
ALDEHYDES
AMIDES
AZOLES
COOLING
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
FURANS
HETEROCYCLIC COMPOUNDS
LACTAMS
LUBRICANTS
OILS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PYRROLES
SEPARATION PROCESSES
020500* - Petroleum- Products & By-Products